Celsius to Fahrenheit Converter
Convert Celsius (°C) to Fahrenheit (°F) instantly and accurately.
Convert Celsius to Fahrenheit instantly with this free online tool. Type a temperature in Celsius and see the Fahrenheit value right away, or type Fahrenheit to convert back. Everything runs in your browser — no sign-up and no waiting.
How to convert Celsius to Fahrenheit
To convert Celsius to Fahrenheit, multiply the temperature by 1.8 (that is 9/5) and add 32. For example, 100 °C × 1.8 + 32 = 212 °F, the boiling point of water. Water freezes at 0 °C, which is 32 °F. This converter does the math for you and updates as you type.
- Enter the temperature in Celsius in the first field.
- Read the result in Fahrenheit in the second field.
- Type into the Fahrenheit field to convert in the other direction.
Why use this Celsius to Fahrenheit converter?
- 100% free with no ads, sign-up, or limits.
- Instant, two-way conversion as you type.
- Handles negative temperatures correctly.
- Runs entirely in your browser.
Frequently asked questions
What is the formula to convert Celsius to Fahrenheit?
Fahrenheit = (Celsius × 9/5) + 32, which is the same as Celsius × 1.8 + 32.
What is 100 °C in Fahrenheit?
100 °C equals 212 °F, the boiling point of water at sea level.
At what temperature are Celsius and Fahrenheit equal?
They are equal at −40 degrees: −40 °C is exactly −40 °F.