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These pages output or accept SI units alongside US customary, so you can translate labels and conversations quickly.
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Frequently asked questions
Most of the world uses kilometers and Celsius on roads. Notable exceptions include the US and parts of the UK system for miles.
Use the Celsius to Fahrenheit converter, then adjust for fan ovens if the recipe assumes conventional heat.
The liter is a metric unit with the same definition worldwide. Gallon definitions differ by country.