Common US unit tools
Pair each US measurement with its metric counterpart. For UK pints and stones, see the UK hub and country guide.
Other hubs
Frequently asked questions
They overlap but are not identical. Volume measures like pints and gallons differ between the US and UK. Use the country guide when unsure.
The US retained customary units for road signage. Convert mph to km/h when you drive in metric countries.
Convert cups and Fahrenheit using our cooking and temperature tools; weigh dry goods in grams when possible.