Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin using exact formulas. Type a temperature and see all conversions instantly.
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How to Use the Temperature Converter
- Enter the temperature value.
- Choose the scale you are converting from.
- Choose the scale you want to convert to.
- The converted temperature appears immediately.
Common Temperature Conversions
- Celsius to Fahrenheit
- Fahrenheit to Celsius
- Celsius to Kelvin
- 0°C in Fahrenheit
- 100°F in Celsius
- 32°F in Celsius
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Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 and add 32. For example, 20°C × 9/5 + 32 = 68°F.
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then multiply by 5/9. For example, (68°F − 32) × 5/9 = 20°C.
What is 0°C in Fahrenheit?
0°C equals 32°F — the freezing point of water at standard pressure.
What is absolute zero in Celsius and Fahrenheit?
Absolute zero is 0 Kelvin, which equals −293.15°C or −459.67°F.
Why do the US and most other countries use different scales?
The US customary system kept Fahrenheit for everyday weather, while most of the world adopted Celsius (part of the metric system) for its simple 0–100 water-based scale.