Temperature Converter
Convert temperature between Celsius, Fahrenheit, Kelvin and Rankine.
100° Celsius = 212° Fahrenheit
100° Celsius in every scale
- Celsius
- 100
- Fahrenheit
- 212
- Kelvin
- 373.15
- Rankine
- 671.67
What Is the Temperature Converter?
The Temperature Converter converts between Celsius, Fahrenheit, Kelvin and Rankine. Enter a temperature in any scale and instantly see it in all the others. It handles the offset between scales correctly and runs entirely in your browser.
How It Works
Type a temperature, choose the scale it's in and the scale you want, and read the result. The swap button flips the pair and the table shows all four scales at once.
When to Use It
Use it for cooking and ovens (°C ↔ °F), weather, science and lab work (Kelvin), engineering (Rankine), or international recipes and travel.
Frequently Asked Questions
- How do I convert Celsius to Fahrenheit?
- Multiply by 9/5 and add 32 — for example, 100 °C = 212 °F. This tool does it for you, in both directions and across all four scales.
- What is Rankine?
- Rankine is an absolute temperature scale (like Kelvin) but using Fahrenheit-sized degrees; 0 °R is absolute zero. It's used in some US engineering fields.
Last reviewed: 2026-06-27
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