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How to use Celsius to Fahrenheit
Celsius to Fahrenheit. °F = °C × 9/5 + 32. 98.6 °F.
The short answer
To convert Celsius to Fahrenheit, multiply by 9/5 and add 32: 25 °C = 25 × 1.8 + 32 = 77 °F. Water freezes at 32 °F (0 °C) and boils at 212 °F (100 °C) at sea level.
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Limits worth knowing
What is 37 °C in Fahrenheit? 98.6 °F.
Is there a quick mental shortcut? Double the Celsius and add 30: 20 °C ≈ 70 °F. It is close between 0 and 30 °C.