United Kingdom vs United States
United Kingdom has a population of 69.3M, compared to United States's 340.1M. United States is 4.9 times more populous than United Kingdom. Economically, United States ($28.75T) has a GDP 7.8 times larger than United Kingdom's ($3.69T). United States covers 9,525,067 km², 39.0 times larger than United Kingdom's 244,376 km². Life expectancy in United Kingdom stands at 81.2 years, 2.9 years higher than United States's 78.4 years.
United KingdomUnited States| Population | -79.6%69.3M | +390.9%340.1M |
| Area | -97.4%244,376 km² | +3797.7%9,525,067 km² |
| GDP | -87.2%$3.69T | +680.0%$28.75T |
| GDP Per Capita | -37.0%$53,246.368 | +58.8%$84,534.041 |
| Life Expectancy | +3.6%81.2 yrs | -3.5%78.4 yrs |
| Infant Mortality | -27.3%4.0 | +37.5%5.5 |
| Literacy Rate | — | — |
| Unemployment | +13.1%4.7% | -11.5%4.2% |
| Capital | London | Washington, D.C. |
| Region | Europe | Americas |
| Languages | English | English |
| Currencies | GBP (£) | USD ($) |
Last updated: March 2026
All data sourced from World Bank Open Data (2025) and REST Countries API. Economic data may reflect most recent available year.
Population Comparison
United States is 4.9 times more populous than United Kingdom, with 340.1M residents compared to 69.3M. United Kingdom is among the world's 30 most populous countries, while United States is among the world's 15 most populous countries. In terms of population density, United Kingdom averages 284 people per km² (dense), while United States averages 36 people per km² (sparse). While United Kingdom has grown at 0.66% annually over the past decade, United States has grown at 0.62% per year over the same period.
Economy Comparison
United Kingdom is classified as a high-income economy, while United States is classified as a high-income economy. The United States economy ($28.75T) is 7.8 times larger than United Kingdom's ($3.69T). United Kingdom's GDP per capita of $53,246.368 is 90% above the regional average of 28,000 for Europe. United States's GDP per capita of $84,534.041 is 526% above the regional average of 13,500 for Americas. On a per-capita basis, residents of United States are on average 1.6 times wealthier than those in United Kingdom.
Health & Quality of Life
Life expectancy in United Kingdom is 81.2 years, compared to 78.4 years in United States, a gap of 2.9 years. United Kingdom (81.2 years) is 9.2 years above the global average of 72 years, while United States (78.4 years) is 6.4 years above the global average of 72 years. At 5.5 deaths per 1,000 live births, United States's infant mortality is 38% higher than United Kingdom's 4.0.
Geographic Comparison
United States (9,525,067 km²) is 39.0 times larger by land area than United Kingdom (244,376 km²). United Kingdom shares borders with 1 country, while United States borders 2 countries. United Kingdom spans 9 timezones, compared to United States's 11 timezones. United Kingdom lies in Europe, while United States is located in North America. United Kingdom is categorized within the Europe region (Northern Europe), whereas United States belongs to Americas (North America).
Key Differences
The most significant difference between United Kingdom and United States is in land area: United Kingdom's 244,376 km² compared to United States's 9,525,067 km² represents a 97% gap. The most significant difference between United Kingdom and United States is in GDP: United Kingdom's $3.69T compared to United States's $28.75T represents a 87% gap. The most significant difference between United Kingdom and United States is in population: United Kingdom's 69.3M compared to United States's 340.1M represents a 80% gap. These disparities reflect the broader structural differences between United Kingdom's high-income economy and United States's high-income economy.
At a Glance: What the Numbers Mean
Living Standards
United States has a GDP per capita of $84,534.041, which is 1.6x that of United Kingdom ($53,246.368). This gap reflects differences in economic development, industrial structure, and workforce productivity. In practical terms, average purchasing power in United States is significantly higher, though cost of living differences partially offset the raw income gap.
Population Density
United Kingdom is 7.9x more densely populated than United States (284 vs 36 people per km²). Higher density typically correlates with more urbanization, greater demand for public transit, and higher housing costs. United States's lower density suggests more rural land use and potentially lower urban congestion.
Healthcare and Longevity
Citizens of United Kingdom live an average of 2.9 years longer than those of United States (81.2 vs 78.4 years). This gap reflects differences in healthcare access, nutrition, public health infrastructure, and environmental factors. This is a moderate difference that could narrow with continued development.
Economic Momentum
United States's economy grew at 2.8% compared to United Kingdom's 1.1%. Both countries show healthy growth, though United States has a modest edge in economic dynamism.
Frequently Asked Questions
Which is bigger, United Kingdom or United States by population?
United States is larger by population, with 340.1M residents compared to United Kingdom's 69.3M. United States is 4.9 times more populous than United Kingdom.
Which country has a higher GDP, United Kingdom or United States?
United States has the higher GDP at $28.75T, compared to United Kingdom's $3.69T. United States's economy is 7.8 times larger.
How does life expectancy compare between United Kingdom and United States?
United Kingdom has a higher life expectancy at 81.2 years, compared to United States's 78.4 years. The gap between the two countries is 2.9 years. United Kingdom's life expectancy is 9.2 years above the global average of 72 years, while United States's is 6.4 years above the global average of 72 years.
Which country is larger by area, United Kingdom or United States?
United States is larger by land area, covering 9,525,067 km² compared to United Kingdom's 244,376 km². United States is 39.0 times larger than United Kingdom.
What languages are spoken in United Kingdom and United States?
United Kingdom recognizes the following official language: English. United States recognizes: English. Both countries share at least one common language.
Which country has lower inflation, United Kingdom or United States?
United States has lower inflation at 2.9%, compared to United Kingdom's 3.3%. United States's inflation is within the 2-3% range considered stable by most central banks, while United Kingdom's rate is moderately elevated above the global median of 3.5%.