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Life Expectancy in Brunei vs Sierra Leone (1950-2026)

Updated on by Georank team

The average life expectancy at birth is 75.8 years in Brunei vs 62.3 in Sierra Leone. Brunei is ranked 86/197 by life expectancy, and Sierra Leone is 186/197. In Brunei, the life expectancy is 73.8 years for males and 78.1 years for females. In Sierra Leone, it's 60.6 years for males and 64.1 years for females.

Brunei vs Sierra Leone life expectancy at birth by year

Brunei
Male

Female
Sierra Leone
Male

Female
1x
Year Life expectancy, years
Brunei Sierra Leone
Average Male Female Average Male Female
2026 75.8 73.8 78.1 62.3 60.6 64.1
2025 75.7 73.7 77.9 62.2 60.4 63.9
2024 75.5 73.5 77.7 62 60.2 63.7
2023 75.3 73.3 77.6 61.8 60.1 63.5
2022 72.9 71.2 74.8 61.3 59.5 63
2021 74.9 72.9 77 60.3 58.8 61.7
2020 75.1 73.1 77.3 59.7 58.2 61.2
2019 75 73.1 77.3 59.6 58.3 60.9
2018 75 73 77.2 59.1 57.8 60.3
2017 74.9 73 77.2 57.8 56.7 58.8
2016 74.9 72.9 77.1 56.9 56 57.9
2015 74.9 72.9 77.1 55.5 54.5 56.3
2014 74.9 72.9 77.1 54.3 53.4 55.1
2013 74.9 72.9 77.1 54.1 53.1 55
2012 74.8 72.9 77.1 53.2 52.2 54.1
2011 74.8 72.9 77.1 52.6 51.7 53.5
2010 74.8 72.9 77.1 51.9 50.9 52.9
2009 74.8 72.9 77.1 51.3 50.3 52.3
2008 74.8 72.9 77.1 50.7 49.7 51.7
2007 74.8 72.8 77.1 50 49 51
2006 74.8 72.8 77 49.5 48.6 50.5
2005 74.7 72.7 77 48.3 47.4 49.2
2004 74.6 72.6 76.9 47.5 46.6 48.4
2003 74.5 72.6 76.8 46.8 45.8 47.7
2002 74.4 72.4 76.7 46.2 45.2 47.1
2001 74.2 72.2 76.6 45.4 44.3 46.6
2000 74 72.1 76.4 44.8 43.7 46
1999 73.8 71.9 76.2 42 38.8 45.5
1998 73.6 71.7 76 42.7 40.7 44.8
1997 73.3 71.4 75.7 43.6 42.3 45
1996 73.1 71.2 75.5 43.5 42.2 44.9
1995 72.8 71 75.2 42.6 40.8 44.4
1994 72.6 70.8 74.9 42.8 41.2 44.4
1993 72.3 70.6 74.6 43.4 41.9 44.9
1992 72.1 70.4 74.3 43.5 42 45
1991 71.9 70.2 74.1 43.3 41.8 44.8
1990 71.6 70 73.8 43.7 42.4 45.1
1989 71.4 69.9 73.5 43.7 42.3 45.2
1988 71.2 69.7 73.2 43.8 42.3 45.2
1987 71 69.5 73 43.7 42.3 45.2
1986 70.8 69.4 72.7 43.5 42 45
1985 70.5 69.2 72.3 43.6 42 45.1
1984 70.2 69 72 43.6 42 45.2
1983 70 68.8 71.6 43.5 41.8 45.1
1982 69.7 68.6 71.2 43.3 41.6 45
1981 69.3 68.4 70.7 43.1 41.4 44.8
1980 69 68.1 70.3 42.8 41.1 44.6
1979 68.6 67.8 69.8 42.5 40.8 44.3
1978 68.3 67.5 69.3 42.2 40.5 43.9
1977 67.8 67.2 68.8 41.8 40.1 43.5
1976 67.4 66.8 68.2 41.4 39.7 43.1
1975 67 66.4 67.6 41 39.3 42.7
1974 66.4 66 67.1 40.4 38.8 42.1
1973 66 65.5 66.5 40 38.4 41.5
1972 65.4 65.1 65.9 39.5 38.1 41
1971 65 64.6 65.3 39.1 37.8 40.5
1970 64.5 64.1 64.7 38.6 37.3 39.9
1969 64 63.6 64.1 38.2 37 39.4
1968 63.5 63.2 63.6 37.8 36.5 39
1967 62.9 62.6 63.1 37.3 36 38.5
1966 62.4 62.1 62.5 36.6 35.4 37.9
1965 61.7 61.4 61.9 35.9 34.5 37.3
1964 61.3 60.9 61.4 35.3 33.9 36.7
1963 60.6 60.3 60.8 34.7 33.3 36.2
1962 58.8 57.6 60.1 34.2 32.7 35.7
1961 59.4 59 59.6 33.6 32.1 35.2
1960 58.7 58.3 59 33.1 31.6 34.6
1959 58 57.6 58.3 32.6 31.1 34
1958 57.3 56.8 57.6 32.1 30.7 33.6
1957 56.5 55.9 57 31.8 30.3 33.2
1956 55.7 55.1 56.4 31.3 29.9 32.8
1955 55 54.2 55.8 30.9 29.5 32.4
1954 54.2 53.2 55.1 30.5 29.1 32
1953 53.3 52.2 54.5 30.1 28.7 31.6
1952 52.4 51.1 53.9 29.7 28.3 31.2
1951 51.5 50 53.2 29.3 27.8 30.8
1950 50.6 48.8 52.5 28.9 27.5 30.4

Data sources: United Nations | World Population Prospects (1950–2026, retrieved 2026-03-10).

GeoRank.org/life-expectancy/brunei/sierra-leone | CC BY

Life expectancy is the average age of death for a hypothetical cohort of newborns if they experienced the age-specific mortality rates of one particular year throughout their entire lives. It's a snapshot reflecting mortality rates in a given year that does not account for any future changes in those rates.

Healthy life expectancy at birth, defined by the World Health Organization as the average number of years a person can expect to live in full health, is 67.1 years in Brunei and 53.1 in Sierra Leone. People who reach age 60 can expect an additional 16.1 healthy years in Brunei and 12.6 in Sierra Leone.

Brunei vs Sierra Leone life expectancy calculator

This life expectancy calculator shows the odds of living to 100, 95, 90, and below based on current age for both males and females in Brunei and Sierra Leone, along with mean and median age of death. The calculations are based on the 2026 life tables (actuarial tables) from the UN World Population Prospects.


Mean remaining life expectancy:
47.2 vs 41.0 years

Mean expected age of death:
77.2 vs 71.0 years

Median expected age of death:
79.5 vs 73.3 years

Odds of living to

Target age Survival probability
Brunei Sierra Leone
Male Female Male Female
40 98.6% 99.0% 96.8% 97.1%
50 95.6% 96.7% 91.1% 92.1%
60 88.0% 91.7% 79.2% 83.0%
65 81.0% 87.3% 69.2% 75.1%
70 71.0% 80.7% 56.0% 63.8%
75 57.5% 70.7% 39.8% 48.2%
80 40.8% 56.1% 23.2% 30.2%
85 23.3% 37.0% 10.0% 14.4%
90 9.4% 17.9% 2.8% 4.6%
95 2.3% 5.4% 0.4% 0.9%
100 0.3% 0.8% 0.0% 0.1%

Life expectancy by current age

Brunei
Male

Female
Sierra Leone
Male

Female
1x
Current age, years Total life expectancy, years
Brunei Sierra Leone
Average Male Female Average Male Female
100 102 101.8 102.1 101.8 101.7 101.8
99 101.1 101 101.2 100.9 100.8 100.9
98 100.2 100.1 100.3 99.9 99.8 100
97 99.3 99.2 99.4 99 98.9 99.1
96 98.5 98.4 98.6 98.1 98 98.2
95 97.6 97.5 97.7 97.2 97.1 97.3
94 96.8 96.7 96.9 96.4 96.2 96.4
93 96 95.8 96.1 95.5 95.3 95.6
92 95.2 95 95.4 94.6 94.5 94.7
91 94.4 94.2 94.6 93.8 93.6 93.9
90 93.7 93.4 93.9 93 92.8 93.1
89 93 92.7 93.2 92.1 91.9 92.2
88 92.2 91.9 92.5 91.3 91.1 91.4
87 91.5 91.2 91.8 90.5 90.3 90.6
86 90.9 90.5 91.2 89.7 89.5 89.9
85 90.2 89.8 90.6 88.9 88.7 89.1
84 89.6 89.1 90 88.2 87.9 88.4
83 89 88.5 89.4 87.5 87.2 87.6
82 88.4 87.9 88.8 86.7 86.5 86.9
81 87.8 87.2 88.3 86 85.8 86.2
80 87.3 86.7 87.8 85.4 85.1 85.6
79 86.8 86.1 87.4 84.7 84.4 84.9
78 86.3 85.5 86.9 84.1 83.8 84.3
77 85.8 85 86.5 83.5 83.1 83.7
76 85.3 84.5 86.1 82.9 82.5 83.1
75 84.9 84 85.7 82.3 81.9 82.6
74 84.5 83.6 85.4 81.7 81.3 82
73 84.1 83.1 85 81.2 80.8 81.5
72 83.7 82.7 84.7 80.7 80.2 81
71 83.3 82.2 84.4 80.2 79.7 80.6
70 83 81.8 84.1 79.7 79.2 80.1
69 82.7 81.5 83.8 79.3 78.7 79.7
68 82.4 81.1 83.6 78.8 78.3 79.3
67 82 80.7 83.3 78.4 77.8 79
66 81.8 80.4 83.1 78 77.4 78.6
65 81.5 80.1 82.9 77.7 77 78.3
64 81.2 79.8 82.6 77.3 76.6 77.9
63 81 79.5 82.4 77 76.2 77.6
62 80.7 79.2 82.3 76.6 75.8 77.3
61 80.5 79 82.1 76.3 75.5 77
60 80.3 78.7 81.9 76 75.2 76.8
59 80.1 78.5 81.7 75.7 74.9 76.5
58 79.9 78.3 81.6 75.5 74.6 76.3
57 79.7 78 81.4 75.2 74.3 76.1
56 79.5 77.8 81.3 75 74 75.8
55 79.4 77.7 81.1 74.7 73.7 75.6
54 79.2 77.5 81 74.5 73.5 75.4
53 79 77.3 80.9 74.3 73.3 75.2
52 78.9 77.2 80.8 74.1 73 75
51 78.8 77 80.6 73.9 72.8 74.8
50 78.6 76.9 80.5 73.7 72.6 74.7
49 78.5 76.7 80.4 73.5 72.4 74.5
48 78.4 76.6 80.3 73.3 72.2 74.3
47 78.3 76.5 80.2 73.1 72.1 74.2
46 78.2 76.4 80.2 73 71.9 74
45 78.1 76.3 80.1 72.8 71.7 73.9
44 78 76.2 80 72.7 71.6 73.7
43 78 76.1 79.9 72.5 71.4 73.6
42 77.9 76.1 79.9 72.4 71.3 73.4
41 77.8 76 79.8 72.3 71.1 73.3
40 77.8 75.9 79.7 72.1 71 73.2
39 77.7 75.8 79.7 72 70.9 73
38 77.6 75.8 79.6 71.9 70.8 72.9
37 77.6 75.7 79.6 71.8 70.7 72.8
36 77.5 75.7 79.5 71.6 70.5 72.7
35 77.5 75.6 79.5 71.5 70.4 72.6
34 77.4 75.6 79.4 71.4 70.3 72.5
33 77.4 75.5 79.4 71.3 70.2 72.4
32 77.3 75.5 79.4 71.2 70.1 72.3
31 77.3 75.4 79.3 71.1 70 72.2
30 77.2 75.4 79.3 71 69.9 72.1
29 77.2 75.3 79.3 70.9 69.8 72
28 77.2 75.3 79.2 70.8 69.7 71.9
27 77.1 75.2 79.2 70.7 69.6 71.8
26 77.1 75.2 79.2 70.6 69.4 71.7
25 77 75.1 79.1 70.5 69.3 71.6
24 77 75.1 79.1 70.4 69.2 71.5
23 76.9 75 79.1 70.3 69.1 71.4
22 76.9 75 79 70.2 68.9 71.3
21 76.9 74.9 79 70 68.8 71.3
20 76.8 74.8 79 69.9 68.7 71.2
19 76.8 74.8 78.9 69.8 68.6 71.1
18 76.7 74.7 78.9 69.7 68.4 71
17 76.7 74.7 78.9 69.6 68.3 70.9
16 76.7 74.7 78.9 69.5 68.2 70.9
15 76.6 74.6 78.8 69.5 68.1 70.8
14 76.6 74.6 78.8 69.4 68 70.7
13 76.6 74.6 78.8 69.3 68 70.7
12 76.6 74.6 78.8 69.3 67.9 70.6
11 76.6 74.6 78.8 69.2 67.8 70.5
10 76.6 74.6 78.8 69.1 67.8 70.5
9 76.6 74.6 78.8 69.1 67.7 70.4
8 76.5 74.6 78.7 69 67.6 70.4
7 76.5 74.5 78.7 68.9 67.5 70.3
6 76.5 74.5 78.7 68.8 67.4 70.2
5 76.5 74.5 78.7 68.6 67.2 70
4 76.5 74.5 78.7 68.5 67.1 69.9
3 76.5 74.5 78.7 68.3 66.9 69.7
2 76.4 74.4 78.6 67.8 66.4 69.2
1 76.4 74.4 78.6 66.9 65.4 68.3
0 75.8 73.8 78.1 62.3 60.6 64.1

Data sources: United Nations | World Population Prospects (2026, retrieved 2026-03-10).

GeoRank.org/life-expectancy/brunei/sierra-leone | CC BY

Life expectancy is often mistaken for the average lifespan of an adult. However, an adult has already survived the causes of early-age mortality and can expect to live longer than the figure calculated at birth.

A 30-year-old in Brunei can expect to live to 77.2 years compared to 71 in Sierra Leone, rising to 81.5 and 77.7 at 65, and to 87.3 and 85.4 at 80 — higher than the 75.8 and 62.3 years calculated at birth.

The chart above accounts for remaining lifespan and displays total life expectancy by age and gender in Brunei and Sierra Leone.

Probability of surviving to a given age

Brunei
Male

Female
Sierra Leone
Male

Female
1x
Age Survival probability
Brunei Sierra Leone
Average Male Female Average Male Female
100 0.52% 0.29% 0.82% 0.06% 0.03% 0.08%
99 0.81% 0.46% 1.26% 0.1% 0.05% 0.14%
98 1.23% 0.71% 1.89% 0.16% 0.09% 0.22%
97 1.82% 1.07% 2.74% 0.25% 0.15% 0.35%
96 2.61% 1.57% 3.86% 0.39% 0.24% 0.54%
95 3.64% 2.23% 5.29% 0.59% 0.38% 0.81%
94 4.94% 3.11% 7.05% 0.87% 0.57% 1.17%
93 6.53% 4.22% 9.16% 1.25% 0.85% 1.66%
92 8.44% 5.59% 11.6% 1.75% 1.22% 2.29%
91 10.6% 7.25% 14.4% 2.4% 1.71% 3.09%
90 13.2% 9.19% 17.6% 3.22% 2.35% 4.08%
89 16% 11.4% 21% 4.24% 3.16% 5.3%
88 19% 13.9% 24.6% 5.48% 4.17% 6.76%
87 22.2% 16.6% 28.4% 6.95% 5.39% 8.47%
86 25.7% 19.6% 32.3% 8.66% 6.84% 10.4%
85 29.2% 22.7% 36.3% 10.6% 8.51% 12.7%
84 32.8% 26% 40.3% 12.8% 10.4% 15.1%
83 36.5% 29.4% 44.1% 15.1% 12.5% 17.7%
82 40.1% 32.9% 47.9% 17.7% 14.8% 20.5%
81 43.7% 36.3% 51.6% 20.4% 17.2% 23.5%
80 47.2% 39.8% 55% 23.2% 19.8% 26.6%
79 50.5% 43.2% 58.3% 26.1% 22.5% 29.7%
78 53.8% 46.6% 61.4% 29.1% 25.3% 32.9%
77 56.8% 49.8% 64.3% 32.1% 28.1% 36.1%
76 59.8% 53% 67% 35.2% 31% 39.2%
75 62.5% 56% 69.5% 38.2% 33.9% 42.4%
74 65.1% 58.9% 71.8% 41.2% 36.8% 45.4%
73 67.6% 61.7% 73.9% 44% 39.7% 48.3%
72 69.9% 64.4% 75.8% 46.8% 42.5% 51.1%
71 72% 66.8% 77.6% 49.4% 45.2% 53.7%
70 74% 69.2% 79.3% 52% 47.8% 56.1%
69 75.9% 71.4% 80.8% 54.3% 50.2% 58.4%
68 77.6% 73.5% 82.2% 56.6% 52.6% 60.5%
67 79.3% 75.4% 83.5% 58.7% 54.9% 62.5%
66 80.8% 77.3% 84.7% 60.7% 57% 64.3%
65 82.2% 78.9% 85.7% 62.5% 59% 66%
64 83.4% 80.5% 86.7% 64.3% 61% 67.6%
63 84.7% 82% 87.7% 65.9% 62.8% 69.1%
62 85.8% 83.3% 88.5% 67.5% 64.5% 70.5%
61 86.8% 84.6% 89.3% 68.9% 66.1% 71.8%
60 87.8% 85.8% 90.1% 70.2% 67.6% 72.9%
59 88.6% 86.8% 90.7% 71.5% 68.9% 74%
58 89.4% 87.8% 91.4% 72.6% 70.2% 75%
57 90.2% 88.7% 91.9% 73.7% 71.4% 75.9%
56 90.9% 89.5% 92.5% 74.6% 72.5% 76.8%
55 91.5% 90.3% 93% 75.6% 73.5% 77.6%
54 92.1% 91% 93.5% 76.4% 74.5% 78.4%
53 92.6% 91.6% 93.9% 77.2% 75.4% 79.1%
52 93.1% 92.2% 94.3% 78% 76.2% 79.8%
51 93.6% 92.7% 94.6% 78.7% 77% 80.4%
50 94% 93.2% 95% 79.3% 77.7% 81%
49 94.4% 93.6% 95.3% 79.9% 78.4% 81.6%
48 94.7% 94% 95.6% 80.5% 79% 82.1%
47 95.1% 94.4% 95.9% 81% 79.6% 82.6%
46 95.3% 94.7% 96.1% 81.5% 80.1% 83%
45 95.6% 95% 96.3% 82% 80.6% 83.5%
44 95.9% 95.3% 96.5% 82.4% 81% 83.9%
43 96.1% 95.5% 96.7% 82.9% 81.5% 84.3%
42 96.3% 95.8% 96.9% 83.2% 81.9% 84.6%
41 96.5% 96% 97.1% 83.6% 82.2% 85%
40 96.6% 96.2% 97.2% 84% 82.6% 85.3%
39 96.8% 96.3% 97.3% 84.3% 82.9% 85.7%
38 96.9% 96.5% 97.5% 84.6% 83.2% 86%
37 97.1% 96.6% 97.6% 84.9% 83.5% 86.3%
36 97.2% 96.8% 97.7% 85.2% 83.8% 86.5%
35 97.3% 96.9% 97.8% 85.4% 84.1% 86.8%
34 97.4% 97% 97.9% 85.7% 84.3% 87%
33 97.5% 97.2% 98% 85.9% 84.6% 87.3%
32 97.6% 97.3% 98% 86.2% 84.8% 87.5%
31 97.7% 97.4% 98.1% 86.4% 85.1% 87.7%
30 97.8% 97.5% 98.2% 86.6% 85.3% 87.9%
29 97.9% 97.6% 98.3% 86.8% 85.5% 88.1%
28 98% 97.7% 98.3% 87% 85.7% 88.3%
27 98.1% 97.8% 98.4% 87.2% 86% 88.5%
26 98.2% 97.9% 98.4% 87.4% 86.2% 88.7%
25 98.2% 98% 98.5% 87.6% 86.4% 88.8%
24 98.3% 98.1% 98.6% 87.8% 86.7% 89%
23 98.4% 98.2% 98.6% 88% 86.9% 89.2%
22 98.5% 98.3% 98.7% 88.2% 87.2% 89.3%
21 98.6% 98.4% 98.7% 88.4% 87.4% 89.5%
20 98.6% 98.5% 98.8% 88.6% 87.6% 89.6%
19 98.7% 98.6% 98.8% 88.8% 87.9% 89.8%
18 98.8% 98.7% 98.9% 89% 88.1% 89.9%
17 98.8% 98.7% 98.9% 89.2% 88.3% 90.1%
16 98.9% 98.8% 99% 89.3% 88.4% 90.2%
15 98.9% 98.8% 99% 89.4% 88.6% 90.3%
14 98.9% 98.9% 99% 89.6% 88.7% 90.4%
13 99% 98.9% 99% 89.7% 88.9% 90.5%
12 99% 98.9% 99.1% 89.8% 89% 90.6%
11 99% 98.9% 99.1% 89.9% 89.1% 90.7%
10 99% 99% 99.1% 90% 89.2% 90.8%
9 99% 99% 99.1% 90.1% 89.3% 90.8%
8 99.1% 99% 99.1% 90.2% 89.4% 91%
7 99.1% 99% 99.1% 90.3% 89.6% 91.1%
6 99.1% 99% 99.2% 90.5% 89.8% 91.2%
5 99.1% 99.1% 99.2% 90.7% 90% 91.5%
4 99.2% 99.1% 99.2% 90.9% 90.2% 91.6%
3 99.2% 99.1% 99.3% 91.2% 90.5% 91.9%
2 99.2% 99.2% 99.3% 91.8% 91.2% 92.5%
1 99.3% 99.2% 99.3% 93.2% 92.6% 93.8%

Data sources: United Nations | World Population Prospects (2026, retrieved 2026-03-10).

GeoRank.org/life-expectancy/brunei/sierra-leone | CC BY

This chart shows the odds of living to each age from birth. 87.8% of newborns in Brunei and 70.2% in Sierra Leone are expected to live past 60, 74% and 52% past 70, 47.2% and 23.2% past 80, and only 13.2% and 3.22% past 90.

For longevity rates starting from a different age, use the calculator provided above.

Compare countries by 7 more topics

Odds of dying at each age

Brunei
Male

Female
Sierra Leone
Male

Female
1x
Age Probability of dying
Brunei Sierra Leone
Average Male Female Average Male Female
100 38.3% 39.3% 37.4% 42.6% 44.5% 41.8%
99 36.3% 37.4% 35.3% 40.8% 42.7% 40%
98 34.2% 35.5% 33.2% 39.2% 41.1% 38.4%
97 32.2% 33.7% 31.1% 37.5% 39.4% 36.6%
96 30.2% 31.8% 29% 35.7% 37.6% 34.8%
95 28.3% 29.9% 27% 33.9% 35.8% 33%
94 26.3% 28.1% 25% 32.1% 34% 31.1%
93 24.4% 26.3% 23.1% 30.3% 32.2% 29.3%
92 22.6% 24.6% 21.2% 28.6% 30.4% 27.6%
91 20.8% 22.8% 19.5% 27% 28.8% 25.9%
90 19.1% 21.1% 17.8% 25.5% 27.2% 24.4%
89 17.5% 19.5% 16.2% 24% 25.7% 23%
88 16% 17.9% 14.8% 22.6% 24.2% 21.6%
87 14.6% 16.5% 13.4% 21.2% 22.7% 20.2%
86 13.3% 15.1% 12.1% 19.8% 21.2% 18.8%
85 12.1% 13.8% 10.9% 18.3% 19.6% 17.5%
84 11% 12.6% 9.82% 17% 18.1% 16.2%
83 10% 11.5% 8.81% 15.6% 16.7% 14.9%
82 9.09% 10.5% 7.89% 14.4% 15.4% 13.7%
81 8.2% 9.56% 7.06% 13.2% 14.2% 12.6%
80 7.38% 8.7% 6.31% 12.2% 13% 11.5%
79 6.64% 7.92% 5.63% 11.2% 12% 10.6%
78 5.99% 7.2% 5.03% 10.3% 11.1% 9.68%
77 5.41% 6.55% 4.48% 9.43% 10.2% 8.85%
76 4.9% 5.96% 4% 8.64% 9.37% 8.08%
75 4.43% 5.42% 3.58% 7.9% 8.6% 7.36%
74 4.01% 4.94% 3.2% 7.2% 7.87% 6.67%
73 3.62% 4.5% 2.86% 6.54% 7.18% 6.03%
72 3.28% 4.09% 2.57% 5.92% 6.55% 5.42%
71 2.98% 3.73% 2.31% 5.35% 5.96% 4.86%
70 2.7% 3.4% 2.08% 4.83% 5.43% 4.34%
69 2.46% 3.1% 1.88% 4.36% 4.94% 3.89%
68 2.24% 2.83% 1.7% 3.95% 4.5% 3.49%
67 2.04% 2.58% 1.54% 3.59% 4.11% 3.15%
66 1.86% 2.35% 1.4% 3.28% 3.76% 2.86%
65 1.7% 2.15% 1.27% 3% 3.45% 2.6%
64 1.55% 1.96% 1.16% 2.74% 3.16% 2.37%
63 1.42% 1.79% 1.06% 2.5% 2.89% 2.16%
62 1.3% 1.63% 0.97% 2.28% 2.64% 1.96%
61 1.19% 1.48% 0.89% 2.08% 2.41% 1.78%
60 1.09% 1.35% 0.81% 1.89% 2.19% 1.6%
59 0.99% 1.23% 0.75% 1.71% 2% 1.45%
58 0.91% 1.11% 0.69% 1.56% 1.82% 1.32%
57 0.83% 1.01% 0.64% 1.43% 1.66% 1.21%
56 0.76% 0.92% 0.58% 1.32% 1.53% 1.12%
55 0.69% 0.84% 0.54% 1.22% 1.4% 1.04%
54 0.63% 0.76% 0.5% 1.13% 1.29% 0.97%
53 0.58% 0.69% 0.46% 1.05% 1.19% 0.91%
52 0.53% 0.63% 0.42% 0.97% 1.09% 0.85%
51 0.48% 0.57% 0.39% 0.9% 1% 0.79%
50 0.44% 0.52% 0.36% 0.83% 0.92% 0.74%
49 0.4% 0.47% 0.33% 0.76% 0.84% 0.68%
48 0.37% 0.42% 0.3% 0.7% 0.78% 0.63%
47 0.34% 0.38% 0.28% 0.65% 0.71% 0.59%
46 0.3% 0.35% 0.25% 0.61% 0.66% 0.55%
45 0.28% 0.31% 0.23% 0.57% 0.61% 0.52%
44 0.25% 0.28% 0.21% 0.53% 0.56% 0.49%
43 0.23% 0.26% 0.19% 0.5% 0.52% 0.47%
42 0.21% 0.24% 0.18% 0.47% 0.49% 0.44%
41 0.19% 0.22% 0.16% 0.44% 0.46% 0.42%
40 0.18% 0.2% 0.15% 0.41% 0.43% 0.4%
39 0.16% 0.18% 0.14% 0.39% 0.4% 0.37%
38 0.15% 0.17% 0.13% 0.37% 0.38% 0.35%
37 0.14% 0.16% 0.12% 0.35% 0.36% 0.33%
36 0.13% 0.15% 0.11% 0.33% 0.34% 0.32%
35 0.12% 0.14% 0.1% 0.31% 0.32% 0.3%
34 0.11% 0.13% 0.09% 0.3% 0.31% 0.28%
33 0.11% 0.12% 0.09% 0.28% 0.29% 0.27%
32 0.1% 0.12% 0.08% 0.27% 0.28% 0.26%
31 0.1% 0.11% 0.08% 0.26% 0.27% 0.25%
30 0.09% 0.11% 0.07% 0.25% 0.27% 0.24%
29 0.09% 0.11% 0.07% 0.24% 0.26% 0.23%
28 0.09% 0.1% 0.07% 0.24% 0.26% 0.22%
27 0.08% 0.1% 0.06% 0.23% 0.26% 0.21%
26 0.08% 0.1% 0.06% 0.23% 0.27% 0.2%
25 0.08% 0.1% 0.06% 0.23% 0.27% 0.19%
24 0.08% 0.1% 0.06% 0.23% 0.28% 0.19%
23 0.08% 0.1% 0.05% 0.23% 0.28% 0.18%
22 0.08% 0.1% 0.05% 0.23% 0.28% 0.18%
21 0.08% 0.1% 0.05% 0.23% 0.28% 0.17%
20 0.08% 0.1% 0.05% 0.22% 0.27% 0.17%
19 0.07% 0.09% 0.05% 0.21% 0.26% 0.16%
18 0.07% 0.08% 0.05% 0.2% 0.24% 0.15%
17 0.06% 0.07% 0.05% 0.18% 0.22% 0.15%
16 0.05% 0.06% 0.04% 0.16% 0.19% 0.13%
15 0.04% 0.04% 0.03% 0.15% 0.17% 0.12%
14 0.03% 0.03% 0.03% 0.13% 0.15% 0.11%
13 0.02% 0.03% 0.02% 0.12% 0.14% 0.1%
12 0.02% 0.02% 0.02% 0.11% 0.13% 0.1%
11 0.02% 0.02% 0.02% 0.11% 0.12% 0.1%
10 0.02% 0.02% 0.02% 0.11% 0.12% 0.1%
9 0.02% 0.02% 0.02% 0.12% 0.13% 0.1%
8 0.02% 0.02% 0.02% 0.13% 0.15% 0.12%
7 0.02% 0.02% 0.02% 0.16% 0.17% 0.14%
6 0.02% 0.02% 0.02% 0.19% 0.21% 0.17%
5 0.03% 0.03% 0.02% 0.26% 0.28% 0.23%
4 0.03% 0.03% 0.03% 0.18% 0.18% 0.17%
3 0.03% 0.04% 0.03% 0.29% 0.3% 0.27%
2 0.04% 0.04% 0.04% 0.72% 0.76% 0.68%
1 0.05% 0.05% 0.04% 1.46% 1.53% 1.39%
0 0.73% 0.79% 0.67% 6.81% 7.42% 6.2%

Data sources: United Nations | World Population Prospects (2026, retrieved 2026-03-10).

GeoRank.org/life-expectancy/brunei/sierra-leone | CC BY

This chart displays the probability of dying at any given age in Brunei compared to Sierra Leone, as mortality rates vary throughout a lifetime.

The annual chance of dying is 0.73% in the birth year in Brunei and 6.81% in Sierra Leone, 0.09% vs 0.25% at age 30, 1.09% vs 1.89% at 60, and 7.38% vs 12.2% at 80.

Death rate by age in Brunei vs Sierra Leone

Brunei
Male

Female
Sierra Leone
Male

Female
1x
Age Death rate
Brunei Sierra Leone
Total Male Female Total Male Female
100 74.5 17.1 157.8 0 0 0
99 294.7 170.9 445 39.1 23.2 55.1
98 423 251.8 627 61.8 37.9 85.7
97 587 359 853 94.5 59.9 129.2
96 788 498 1,121 140.1 91.7 188.4
95 1,028 669 1,427 201.1 135.9 266
94 1,300 874 1,762 280.1 195.3 364
93 1,595 1,111 2,113 379 272.6 485
92 1,903 1,374 2,468 501 371 630
91 2,213 1,654 2,811 648 492 801
90 2,513 1,941 3,128 820 639 997
89 2,791 2,225 3,407 1,018 812 1,218
88 3,039 2,494 3,636 1,237 1,009 1,459
87 3,250 2,741 3,807 1,471 1,223 1,713
86 3,416 2,957 3,917 1,711 1,447 1,967
85 3,536 3,138 3,965 1,946 1,671 2,213
84 3,619 3,281 3,954 2,166 1,885 2,439
83 3,657 3,385 3,891 2,367 2,085 2,640
82 3,644 3,448 3,784 2,543 2,268 2,812
81 3,585 3,473 3,641 2,695 2,432 2,952
80 3,484 3,463 3,472 2,822 2,576 3,060
79 3,355 3,422 3,285 2,921 2,699 3,137
78 3,218 3,355 3,087 2,989 2,796 3,181
77 3,076 3,266 2,884 3,029 2,867 3,193
76 2,926 3,159 2,681 3,039 2,908 3,172
75 2,772 3,039 2,484 3,015 2,918 3,117
74 2,612 2,910 2,295 2,961 2,899 3,030
73 2,448 2,774 2,117 2,878 2,852 2,912
72 2,291 2,635 1,950 2,771 2,782 2,768
71 2,144 2,493 1,795 2,646 2,693 2,606
70 2,001 2,352 1,651 2,510 2,591 2,437
69 1,866 2,213 1,519 2,371 2,482 2,269
68 1,741 2,077 1,398 2,236 2,369 2,112
67 1,621 1,945 1,286 2,108 2,256 1,968
66 1,505 1,818 1,183 1,988 2,145 1,839
65 1,396 1,695 1,088 1,874 2,034 1,719
64 1,296 1,577 1,003 1,762 1,924 1,606
63 1,204 1,464 925 1,652 1,814 1,495
62 1,118 1,356 855 1,541 1,702 1,384
61 1,033 1,253 791 1,431 1,591 1,275
60 953 1,155 733 1,324 1,481 1,170
59 879 1,064 680 1,224 1,377 1,074
58 811 978 630 1,134 1,279 990
57 748 899 584 1,053 1,189 919
56 690 825 541 982 1,106 859
55 635 756 501 919 1,030 808
54 584 693 463 862 960 763
53 537 634 429 808 894 721
52 493 579 397 755 831 679
51 453 528 368 705 772 637
50 416 480 341 656 715 596
49 381 437 315 610 662 557
48 349 397 290.2 567 613 520
47 319 360 266.8 529 568 489
46 290.7 327 244.5 495 527 461
45 265.2 297.7 223.7 464 490 437
44 242.1 271 204.7 436 457 415
43 221.3 247.3 187.4 411 427 395
42 202.7 226.2 172 388 400 376
41 186.2 207.5 158.4 366 375 357
40 171.6 191 146.1 346 353 339
39 158.7 176.3 135.1 327 332 321
38 147 163.4 125 309 314 304
37 136.3 151.9 115.6 293.1 297.9 288.1
36 126.7 141.8 107 278.5 283.4 273.4
35 118.3 133.1 99.2 265.3 270.4 260
34 111 125.6 92.1 253.4 258.9 247.7
33 104.8 119.4 86 242.7 248.7 236.4
32 99.6 114.3 80.7 233.1 239.9 226
31 95.3 110.2 76.2 224.6 232.6 216.4
30 91.7 106.9 72.3 217.5 227.2 207.5
29 88.6 104.3 68.7 211.8 223.9 199.3
28 85.7 102.2 65.3 207.6 223 191.6
27 83.1 100.5 62.1 204.9 224.7 184.5
26 80.8 99.3 59.2 203.8 228.6 178
25 79 98.7 56.8 203.9 234.2 172.3
24 77.9 98.7 55 204.6 240.4 167.2
23 77.6 99.4 54 205 245.6 162.9
22 77.9 100.4 53.7 204.4 248.2 159.1
21 78.4 100.7 54 201.9 246.7 155.4
20 77.4 98.9 54 196.4 240.1 151.2
19 73.8 93.2 52.9 187.8 228.2 145.9
18 67.3 83 50.1 175.9 211.6 139.1
17 57.8 69.4 45.2 161.7 191.8 130.6
16 47.3 54.9 39.1 146.4 171 121.1
15 37.5 41.8 32.8 131.6 151.3 111.2
14 29.6 31.8 27.2 118.5 134.3 102.1
13 23.9 24.8 22.8 108.1 121.1 94.7
12 20.1 20.4 19.9 101.1 112.4 89.5
11 18 17.9 18.1 98 108.4 87.3
10 17.1 16.9 17.4 99.1 109.4 88.5
9 17.2 17 17.5 105.4 116.1 94.2
8 18.2 18 18.3 118.2 130.1 105.9
7 19.8 19.9 19.8 140.3 153.9 126.2
6 22.2 22.5 21.8 175.8 191.6 159.5
5 25.2 25.9 24.4 231.8 249.9 213
4 28.9 30.2 27.6 160.3 163.4 157
3 33.4 35.3 31.3 263.1 274.4 251.4
2 38.7 41.5 35.7 664 694 633
1 44.9 48.8 40.8 1,363 1,421 1,302
0 732 790 669 6,810 7,421 6,205

Data sources: United Nations | World Population Prospects (2026, retrieved 2026-03-10).

GeoRank.org/life-expectancy/brunei/sierra-leone | CC BY

This chart shows the number of deaths by age up to 100 for 3 cohorts of 100,000 newborns each — male, female, and both combined — illustrating how expected mortality is distributed throughout life.

In Brunei, the most common age of death is 83, compared to 0 in Sierra Leone. The median age of death is 79.2 in Brunei and 70.8 in Sierra Leone, meaning only half of each cohort is expected to live past that age.

Note that this chart does not show rates per 100,000 population, as those would be skewed by age structure differences and reflect the demographics of Brunei and Sierra Leone more than their death rates.

Life expectancy in other countries

1x

Data sources: United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10).

GeoRank.org/life-expectancy/brunei/sierra-leone | CC BY

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Data sources:

  1. United Nations | World Population Prospects (1950–2026, retrieved 2026-03-10)
  2. World Health Organization (WHO) | Global Health Observatory (2021, retrieved 2026-02-08)

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