United Kingdom vs India: Population Comparison 2025

Colonial legacy demographics. India's rise vs Britain's relative decline.

United Kingdom

2025
0
Total Population

India

0
Total Population
India leads by 1.39B people
Gap is 2004.73% of United Kingdom's population
Fertility Rate
1.56vs1.98
India +0.42
Median Age
41.1vs29.8
India younger
Density /km²
7vs445
India 63.6x denser
Working Age %
63.3%vs68.4%
Ages 15-64
United Kingdom: Growing Population
India: Growing Population
Replacement Level: 2.1

Population Pyramids Comparison

Total Population

United Kingdom

69.6M

vs

India

1463.9M

Youth (0-14)

United Kingdom

17.0%

vs

India

24.2%

Elderly (65+)

United Kingdom

19.7%

vs

India

7.4%

Demographic Analysis: United Kingdom vs India

In 2025, United Kingdom has a population of 70M, while India has 1.46B. This represents a difference of 1.39B, with India having 21.0 times the population of the other. United Kingdom ranks #22 globally by population size, while India ranks #1.

The median age reveals significant demographic differences: United Kingdom has a median age of 41.1 years, compared to 29.8 years in India. This 11.3-year difference indicates that United Kingdom has a significantly older population, with important implications for workforce dynamics, healthcare needs, and economic development. The dependency ratio in United Kingdom is 57.9%, while in India it is 46.1%, showing the relative burden of non-working age populations on the workforce.

Gender balance differs between the two countries: United Kingdom has a sex ratio of 97.06 males per female, while India has 106.44. India shows a higher proportion of males, which can affect marriage markets, labor force composition, and social dynamics. These ratios reflect various factors including sex-selective practices, differential mortality rates, and migration patterns.

Comprehensive Demographic Comparison 2025

IndicatorUnited KingdomIndiaDifference / Ratio
Population Metrics
Total Population (2025)70M1.46B21.0x smaller
World Population Ranking#22#121 places apart
Population Growth Rate (5-year)+0.64%+0.86%0.21pp difference
Projected Growth (2025-2050)0.00%0.00%0.00pp difference
Age Structure
Median Age41.1 years29.8 years11.3 years older
Youth (0-14) Population17.0%24.2%7.2pp difference
Working Age (15-64) Population63.3%68.4%5.1pp difference
Elderly (65+) Population19.7%7.4%12.3pp difference
Youth Bulge (15-29)18.2%26.1%7.8pp difference
Prime Workforce (25-54)38.8%42.7%4.0pp difference
Demographic Indicators
Total Dependency Ratio57.9%46.1%11.8pp difference
Child Dependency Ratio26.8%35.4%8.6pp difference
Old-Age Dependency Ratio31.1%10.8%20.3pp difference
Sex Ratio (males per 100 females)97.1106.49.4 difference
Total Fertility Rate1.56 children/woman1.98 children/woman0.42 difference
Estimated Birth Rate10.2 per 1,00015.5 per 1,0005.3 difference
Aging Index (65+/0-14)116.1%30.5%85.7pp difference
Population Pyramid TypeconstrictivestationaryDifferent types

📊 Understanding the Population Difference Chart

This visualization shows where and by how much the populations differ between United Kingdom and India for each age group, split by gender:

Left Side (Males)

Blue = United Kingdom has more males

Green = India has more males

Right Side (Females)

Pink = United Kingdom has more females

Orange = India has more females

💡 How to Read: Each age group shows up to 2 bars - one on the left (male difference) and one on the right (female difference). The bar's color tells you which country has more people, and the bar's length shows by how much. For example, if you see a green bar on the left, it means India has more males in that age group.

Notable Differences (>20% variance):

Ages 0-4: India has 96.9% more people
Men: 56.8M more in IndiaWomen: 52.8M more in India
United Kingdom: 1.8M men, 1.7M womenIndia: 58.6M men, 54.5M women
Population Ratio
3.5M
113.1M
Ages 5-9: India has 96.6% more people
Men: 59.3M more in IndiaWomen: 54.5M more in India
United Kingdom: 2.0M men, 1.9M womenIndia: 61.4M men, 56.5M women
Population Ratio
4.0M
117.8M
Ages 10-14: India has 96.5% more people
Men: 62.2M more in IndiaWomen: 56.7M more in India
United Kingdom: 2.2M men, 2.1M womenIndia: 64.4M men, 58.8M women
Population Ratio
4.3M
123.2M
Ages 15-19: India has 96.7% more people
Men: 64.2M more in IndiaWomen: 58.3M more in India
United Kingdom: 2.2M men, 2.1M womenIndia: 66.4M men, 60.3M women
Population Ratio
4.2M
126.7M
Ages 20-24: India has 96.9% more people
Men: 66.0M more in IndiaWomen: 59.8M more in India
United Kingdom: 2.1M men, 2.0M womenIndia: 68.0M men, 61.8M women
Population Ratio
4.0M
129.8M
Ages 25-29: India has 96.5% more people
Men: 63.5M more in IndiaWomen: 57.5M more in India
United Kingdom: 2.3M men, 2.2M womenIndia: 65.8M men, 59.6M women
Population Ratio
4.4M
125.4M
Ages 30-34: India has 96.1% more people
Men: 60.1M more in IndiaWomen: 55.0M more in India
United Kingdom: 2.4M men, 2.3M womenIndia: 62.5M men, 57.3M women
Population Ratio
4.7M
119.8M
Ages 35-39: India has 96.0% more people
Men: 56.5M more in IndiaWomen: 52.1M more in India
United Kingdom: 2.3M men, 2.3M womenIndia: 58.8M men, 54.4M women
Population Ratio
4.6M
113.2M
Ages 40-44: India has 95.5% more people
Men: 50.6M more in IndiaWomen: 46.8M more in India
United Kingdom: 2.3M men, 2.3M womenIndia: 52.9M men, 49.2M women
Population Ratio
4.6M
102.0M
Ages 45-49: India has 95.2% more people
Men: 43.4M more in IndiaWomen: 40.8M more in India
United Kingdom: 2.1M men, 2.1M womenIndia: 45.5M men, 42.9M women
Population Ratio
4.2M
88.4M
Ages 50-54: India has 94.2% more people
Men: 37.0M more in IndiaWomen: 35.5M more in India
United Kingdom: 2.2M men, 2.3M womenIndia: 39.2M men, 37.8M women
Population Ratio
4.5M
77.0M
Ages 55-59: India has 93.0% more people
Men: 30.7M more in IndiaWomen: 29.9M more in India
United Kingdom: 2.2M men, 2.4M womenIndia: 32.9M men, 32.3M women
Population Ratio
4.6M
65.1M
Ages 60-64: India has 92.2% more people
Men: 25.1M more in IndiaWomen: 24.9M more in India
United Kingdom: 2.0M men, 2.2M womenIndia: 27.2M men, 27.1M women
Population Ratio
4.2M
54.3M
Ages 65-69: India has 91.3% more people
Men: 19.4M more in IndiaWomen: 19.8M more in India
United Kingdom: 1.8M men, 1.9M womenIndia: 21.2M men, 21.8M women
Population Ratio
3.7M
43.0M
Ages 70-74: India has 89.6% more people
Men: 13.4M more in IndiaWomen: 14.3M more in India
United Kingdom: 1.5M men, 1.7M womenIndia: 14.9M men, 16.0M women
Population Ratio
3.2M
30.8M
Ages 75-79: India has 83.4% more people
Men: 7.0M more in IndiaWomen: 8.0M more in India
United Kingdom: 1.4M men, 1.6M womenIndia: 8.4M men, 9.6M women
Population Ratio
3.0M
18.0M
Ages 80-84: India has 80.1% more people
Men: 3.4M more in IndiaWomen: 4.3M more in India
United Kingdom: 838K men, 1.1M womenIndia: 4.3M men, 5.3M women
Population Ratio
1.9M
9.6M
Ages 85-89: India has 74.7% more people
Men: 1.4M more in IndiaWomen: 2.0M more in India
United Kingdom: 489K men, 683K womenIndia: 1.9M men, 2.7M women
Population Ratio
1.2M
4.6M
Ages 90-94: India has 67.3% more people
Men: 444K more in IndiaWomen: 610K more in India
United Kingdom: 187K men, 326K womenIndia: 631K men, 936K women
Population Ratio
513K
1.6M
Ages 95-99: India has 57.5% more people
Men: 90K more in IndiaWomen: 97K more in India
United Kingdom: 40K men, 98K womenIndia: 130K men, 194K women
Population Ratio
138K
325K
Ages 100+: India has 51.5% more people
Men: 11K more in IndiaWomen: 9K more in India
United Kingdom: 4K men, 15K womenIndia: 15K men, 23K women
Population Ratio
18K
38K
195020252025

Population Difference

-1394.3M

India larger

Growth Since 1950

United Kingdom

+38.8%

India

+322.7%

Population Ratio

1 : 21.05

United Kingdom : India

Total Population

United Kingdom

69.6M

India

1.46B

Difference: -95.2%

Median Age

United Kingdom

41.1 years

India

29.8 years

Difference: +11.3

Youth Population (0-14)

United Kingdom

11.8M

17.0%

India

354.2M

24.2%

Difference: -96.7%

Working Age (15-64)

United Kingdom

44.0M

63.3%

India

1.00B

68.4%

Difference: -95.6%

Elderly Population (65+)

United Kingdom

13.7M

19.7%

India

108.0M

7.4%

Difference: -87.3%

Total Dependency Ratio

United Kingdom

57.9 per 100

India

46.1 per 100

Difference: +11.8

Youth Dependency Ratio

United Kingdom

26.8 per 100

India

35.4 per 100

Difference: -8.6

Old-Age Dependency Ratio

United Kingdom

31.1 per 100

India

10.8 per 100

Difference: +20.3

Sex Ratio

United Kingdom

97.1 M/100F

India

106.4 M/100F

Difference: -9.4

Note: Dependency ratios represent the number of dependents (youth + elderly) per 100 working-age individuals. Higher ratios indicate greater economic burden on the working population.

Current Gap
0.42
births per woman
Below Replacement Level
Both
Population decline risk
2030 Projection Gap
0.42
Both trending below replacement

Note: The replacement fertility rate of 2.1 is the level at which a population exactly replaces itself from one generation to the next.Both countries are experiencing demographic transitions as they develop economically. Countries below 2.1 face potential population decline without immigration, while those above 2.1 continue growing naturally.

🏆

Historic Milestone: 2023

India became the world's most populous country, ending United Kingdom's centuries-long reign

United Kingdom: 75-Year Journey

1950 Population:50M
2025 Population:70M
Total Growth:+19M (38.8%)
Peak Year:Still growing

India: 75-Year Journey

1950 Population:346M
2025 Population:1.46B
Total Growth:+1118M (322.7%)
Projected Peak:~2061 (Still growing)

Growth Rate by Period

1950-1975
United Kingdom: 0.46%/yr
India: 2.30%/yr
1975-2000
United Kingdom: 0.20%/yr
India: 2.22%/yr
2000-2025
United Kingdom: 0.66%/yr
India: 1.31%/yr

Frequently Asked Questions

India officially overtook China as the world's most populous country in April 2023, according to United Nations estimates. This historic shift ended China's long reign as the world's most populous nation, a position it had held for centuries. As of 2025, India has 1.46 billion people compared to China's 69.6 million, a gap of 1.39 billion people.