Life expectancy in Japan
A baby born in Japan today can expect to live 84.7 years. That places it #4 of the 185 countries tracked here — 1.8 years behind Monaco, the world leader.
84.7
Both sexes
81.6
Men
87.7
Women
Women in Japan outlive men by 6.1 years. That gap appears in every country on Earth, and only part of it is biological — the rest is behavioural, and most of that part is smoking, alcohol and violent death.
That is the average. What about you?
Twelve questions, about ninety seconds, and the Japan curve adjusted for how you actually live.
Then make it count. The Extension Plan turns your result into a 12-week plan, starting with the habit worth the most years to you · $9. See what is in it →
If you already live in Japan, you will live longer than that
Life expectancy at birth is dragged down by everyone who dies young. Once you have already survived to a given age, your expected age at death goes up. Here is what the Japan mortality curve says for someone alive today:
| If you are now | Men live to | Women live to |
|---|---|---|
| 20 years old | 82.2 | 88.1 |
| 30 years old | 82.8 | 88.3 |
| 40 years old | 83.5 | 88.6 |
| 50 years old | 84.5 | 89.1 |
| 60 years old | 85.8 | 90.0 |
| 70 years old | 88.0 | 91.3 |
| 80 years old | 91.0 | 93.5 |
Derived from the SSA 2023 period life table, re-based so that life expectancy at birth matches the published figure for Japan. Why the number climbs with age.
How Japan compares
- Monaco86.5
- Hong Kong85.6
- San Marino85.1
- Macao84.7
- Japan84.7
- South Korea84.3
- Australia84.2
- Bangladesh74.3
Compare with another country
What actually moves the number
National life expectancy is mostly not about individual willpower. It tracks healthcare access, clean water, road safety, infant mortality and conflict far more closely than it tracks personal habits. The 2-year gap between Japan and Monaco is a story about systems.
Your personal number is different. Within any country, the distance between the healthiest and least healthy lifestyle is worth somewhere around 12 to 20 years — which is why the calculator asks about you, not just about where you live.
The habits worth the most years →More in Asia
That is the average. What about you?
Twelve questions, about ninety seconds, and the Japan curve adjusted for how you actually live.
Then make it count. The Extension Plan turns your result into a 12-week plan, starting with the habit worth the most years to you · $9. See what is in it →