World Population PyramidsPopulation pyramids and indicators by country and year日本語

Japan vs United Kingdom: population pyramids in 2038

2038Swap

JapanUnited Kingdom

1%0.75%0.5%0.25%0%0.25%0.5%0.75%1%0102030405060708090100MaleFemale

Each bar is the share of the total population at that single year of age (men left, women right), so countries of different sizes can be compared.

Japan and United Kingdom compared

In 2038, Japan has a population of 113.8 million and the United Kingdom 73.2 million; Japan is about 1.6 times the size of the United Kingdom.

The share aged 65 and over is 33.9% in Japan and 23.0% in the United Kingdom, 10.8 points higher in Japan. The median age is 53.8 years in Japan and 42.8 years in the United Kingdom.

The total fertility rate is 1.31 in Japan and 1.53 in the United Kingdom, both below the replacement level of about 2.1. Life expectancy at birth is 86.8 years in Japan and 83.5 years in the United Kingdom.

By 2050, the population of Japan is projected to shrink by 7.7% and that of the United Kingdom to grow by 3.0% compared with 2038.

GDP per person is $36K in Japan (2025) and $58K in the United Kingdom (2025).

Figures from 2024 are UN medium-variant projections.

Key figures (2038)

JapanUnited Kingdom
Population113.8 million73.2 million
Aged 0–1410.2%14.9%
Aged 15–6455.9%62.1%
Aged 65+33.9%23.0%
Median age53.8 yrs42.8 yrs
Old-age dependency60.637.1
Total fertility rate1.311.53
Life expectancy86.8 yrs83.5 yrs
Population growth-0.65%+0.30%
Net migration (per year)+121,736+253,389
GDP$4.44T (2025)$4T (2025)
GDP per person$36K (2025)$58K (2025)
Unemployment2.5% (2025)4.8% (2025)

Economic figures are the latest year published for each country.

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