The United States of America is a large country in North America. The United Kingdom is an island nation in Europe. The following is a comparison between the USA and the UK. Let’s read.
The United States has a larger GDP and a higher GDP per capita than the United Kingdom. As the world’s largest economy by nominal GDP, the United States has major strengths in technology, finance, manufacturing, and healthcare. The United Kingdom also has a highly developed economy that ranks among the largest in the world. The table below compares the GDP and GDP per capita of both countries.
2025 (IMF)
USA
UK
Currency
United States Dollar
Pound sterling
GDP (nominal, USD)
$30.77 trillion
$4 trillion
GDP per capita (nominal, USD)
$89.99 thousand
$57.61 thousand
GDP (PPP, international $)
$30.77 trillion
$4.55 trillion
GDP per capita (PPP, international $)
$89.99 thousand
$65.52 thousand
Population
The United States has a much larger population than the United Kingdom. However, the United Kingdom is more densely populated. The table below compares the population, total fertility rate (TFR), and percentage of the population in different age groups in the two countries.
2025 estimate
USA
UK
Population
347.3 million
69.6 million
Population aged 0-14
17%
17%
Population aged 15-64
65%
63%
Population aged 65 and older
18%
20%
Total fertility rate, per woman
1.6
1.5
Life
USA
UK
Life expectancy at birth (2023/UN)
79.3
81.3
Human Development Index rank (2023)
17th
13th
Human Development Index value
0.938
0.946
Overview
The United States of America is one of the largest countries in the world. It is more than 40 times larger than the United Kingdom.
USA (United States of America)
UK (United Kingdom)
Area
approximately 9.8 million sq km
approximately 243,600 sq km
Population
347.3 million (2025 estimate)
69.6 million (2025 estimate)
Capital city
Washington, D.C.
London
Largest city
New York City
London
Largest metropolitan area
New York metropolitan area (Tri-State area)
London metropolitan area
Most spoken language
English
English
Most popular sport
American football
Football (soccer)
New York, the largest city in the US
Geography
USA
UK
Continent
North America
Europe
Forest cover (2023)
33.9%
13.3%
Total number of time zones
11
9
Highest mountain peak
Denali/Mount McKinley (6,190 m/20,310 ft)
Ben Nevis (1,345 m/4,413 ft)
Largest island
Hawaii Island
Great Britain
Largest lake
Lake Superior (shared with Canada); Lake Michigan (entirely within the United States)
Lough Neagh
Major rivers
Missouri, Mississippi, Yukon, Rio Grande, Arkansas, Colorado, etc.
Thames, Trent, Severn, Great Ouse, Wye, Tay, etc.
Tourism
USA
UK
International tourist arrivals
72.4 million (2024)
41.8 million (2024)
Number of UNESCO World Heritage Sites
26
35
Popular places to visit
New York City, Los Angeles, Chicago, Yellowstone National Park, San Francisco, Yosemite National Park, Grand Canyon, etc.
London, Stonehenge, Bath, Edinburgh, Cardiff, Giant’s Causeway, Scottish Highlands, etc.
