Country size comparison
compared to
United Kingdom is about 1.7 times smaller than California.
California is approximately 403,882 sq km, while United Kingdom is approximately 243,610 sq km, making United Kingdom 60.32% the size of California. Meanwhile, the population of California is ~37.3 million people (30.5 million more people live in United Kingdom).
Tip: This to-scale comparison of California vs. United Kingdom uses the Mercator projection, which distorts the size of regions near the poles. Try dragging the outline to reposition.
Compare further: United Kingdom vs. California
Flip Comparison · See true size
See United Kingdom on top of California
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Quality of Life Comparison · 3 statistics
Make 55.3% more money in California
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Cost of Living Comparison · 7 categories - 2026 data
California is 20.9% more expensive than United Kingdom overall
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Moving from United Kingdom to California · Cost, visas & climate
Compare cost of living, salary and climate.
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City Size Comparison · See true size
Compare the size of London vs Sacramento
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