United States vs United Kingdom

Every indicator for United States and United Kingdom side by side, with the percentage gap between them. Sources are listed at the bottom of the page.

Indicator comparison
IndicatorUnited StatesUnited KingdomDifference
Population (2025) (people)341,784,85769,487,000+391.9%
GDP (nominal) (billion $)30,7704,003+668.7%
GDP per capita ($)90,02757,602+56.3%
Life expectancy (years)78.981.4—
Area (km²)9,831,510243,610+3,935.8%
Population density (people/km²)35285−87.8%
Median age (years)38.340.6—
Internet usage (%)94.795.5—
Unemployment rate (%)4.24.7—
Inflation (%)2.93.9—
Urban population (%)80.283.3—
Military expenditure (2024) (million $)997,30981,763+1,119.8%
Military expenditure as a share of GDP (%)3.422.28+50.0%
Military expenditure as a share of government spending (%)9.115.25+73.5%
Military expenditure per capita ($)2,9181,177+148.0%
Armed forces personnel (2020) (people)1,395,000153,000+811.8%
Armed forces per 1,000 people (people)4.12.2+85.4%
Armed forces as a share of the labor force (%)0.840.45+86.7%

The difference column shows the percentage gap of United States relative to United Kingdom; a positive value favors United States. Interpret it in context — for unemployment, a lower value is better.

At a glance

United States is higher on 11 of the 12 indicators, while United Kingdom leads on the remaining 1. The widest separation is in area, about 40 times; they are closest on military expenditure as a share of gdp.

Key differences

  • Area shows the widest gap of all: United States stands at 9,831,510 against United Kingdom's 243,610 — roughly 40 times as much.
  • Military expenditure (2024) shows the widest gap of all: United States stands at 997,309 against United Kingdom's 81,763 — roughly 12 times as much.
  • United States's armed forces personnel (2020) (1,395,000) is about 9.1 times United Kingdom's (153,000).
  • United Kingdom's population density (285) is about 8.2 times United States's (35).
  • United States's gdp (nominal) (30,770) is about 7.7 times United Kingdom's (4,003).

Frequently asked questions

Where do United States and United Kingdom differ most?
In area. United States records 9,831,510 against United Kingdom's 243,610 — a ratio of roughly 40 to one.
Where are United States and United Kingdom most alike?
In military expenditure as a share of gdp, at 3.42 and 2.28 — a gap of only %50.
On how many indicators is United States ahead of United Kingdom?
United States is higher on 11 of the 12 ratio-scale indicators and United Kingdom on 1. A higher number is not automatically better, though — population density, for instance, is a characteristic rather than an advantage.
United States and United Kingdom — core indicators
0100 M200 M300 M400 MPopulation (2025)GDP (nominal)GDP per capitaAreaPopulation (2025) — United States: 341,784,857GDP (nominal) — United States: 30,770GDP per capita — United States: 90,027Area — United States: 9,831,510Population (2025) — United Kingdom: 69,487,000GDP (nominal) — United Kingdom: 4,003GDP per capita — United Kingdom: 57,602Area — United Kingdom: 243,610
United StatesUnited Kingdom

The indicators use different scales, so the chart is a rough visual comparison only; use the table for exact figures.

Other comparisons involving United States or United Kingdom.

Data sourcesUN World Population Prospects, IMF, World Bank, SIPRI