Free Temperature Converter
°C, °F, K, °R conversions.
| °F | 68 |
| K | 293.15 |
| °R | 527.67 |
Formulas
°F = °C × 9/5 + 32
K = °C + 273.15
Reference: water freezes at 0 °C / 32 °F / 273.15 K and boils at 100 °C / 212 °F.
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How to use the Temperature Converter
- 1Enter a temperature.
- 2Pick the unit.
- 3See all conversions & formulas.
Features
- 4 scales
- Formula display
- Reference points
Frequently Asked Questions
How do I convert C to F quickly?
Double it and add 30 for a rough estimate; exact: °C × 9/5 + 32.
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About the Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin and Rankine with formulas shown. The Temperature Converter runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more Converters tools or browse all free online tools.