ConverterCelsius to Fahrenheit converter
Type a temperature and pick its scale. The other two scales appear at once, each with the formula and the numbers put into it, so you can check it or learn it.
- °F = °C × 9/5 + 32, and °C = (°F − 32) × 5/9.
- Kelvin is °C + 273.15; nothing goes below absolute zero.
- A ± button for temperatures below zero on a phone keypad.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
- Size 24 KB
Try an example
- 350 °F in °CA recipe's oven
- 180 °C in °FA European oven
- 98.6 °F in °CBody temperature
- −40Where the scales meet
- 25 °C in °FA warm day
- 0 KAbsolute zero
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Questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 (that is 1.8) and add 32. 20 °C is 20 × 9/5 + 32 = 68 °F.
How do I convert Fahrenheit to Celsius?
Take away 32, then multiply by 5/9. 350 °F is (350 − 32) × 5/9, about 176.67 °C, which recipes round to 180 °C.
What is Kelvin?
The scientific scale that starts at absolute zero. It uses Celsius-sized steps, so K = °C + 273.15, and 0 K is −273.15 °C or −459.67 °F.
When are Celsius and Fahrenheit the same?
At −40. −40 °C is exactly −40 °F.
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