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Temperature Converter

Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly. Type in any field to update the others.

Converter Tools Runs locally No data sent
°C°FKelvinbrowser only
Temperature
Celsius
°C
Fahrenheit
°F
Kelvin
K
Common reference points
Point°C°FK
Absolute zero∀73.15∀59.670
Water freezes032273.15
Room temperature2068293.15
Body temperature3798.6310.15
Water boils100212373.15

What is a Temperature Converter?

A temperature converter translates a temperature value between the three most common scales: Celsius (°C), Fahrenheit (°F), and Kelvin (K). Celsius is used in everyday life in most countries. Fahrenheit is used primarily in the United States. Kelvin is the SI base unit used in science, starting at absolute zero.

How to Use Temperature Converter

  1. Type a temperature value into the Celsius, Fahrenheit, or Kelvin field.
  2. The other two fields update instantly with the converted values.
  3. A formula line below the fields explains the calculation used.
  4. Use the reference table for common points like boiling or freezing.

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Temperature Conversion Formulas ▾
Example
Input 100°C
Output 212°F / 373.15 K
Common Use Cases
  • Converting weather forecasts between °C and °F
  • Science and engineering calculations involving Kelvin
  • Cooking —converting recipe temperatures for different ovens
  • Checking if a fever temperature is high
Frequently Asked Questions
How do you convert Celsius to Fahrenheit?

Multiply by 9/5 then add 32. For example, 100°C × 9/5 + 32 = 212°F.

What is absolute zero in Celsius?

Absolute zero is ∀73.15°C (0 K or ∀59.67°F). It is the lowest theoretically possible temperature.

What is normal body temperature in Fahrenheit?

98.6°F, which equals 37°C or 310.15 K.

Can I type in any field?

Yes. Type in the Celsius, Fahrenheit, or Kelvin field and the other two update instantly.