Converter hub
Temperature Converter
Temperature is the one category where conversion is not a multiplication: Celsius, Fahrenheit and Kelvin use offset formulas, so the relationship is affine rather than proportional. Pick a pair below or open the page for the exact factor, a worked example and a full chart.
Units in this category
Temperature is the one category where conversion is not a multiplication: Celsius, Fahrenheit and Kelvin use offset formulas, so the relationship is affine rather than proportional.
| Unit | Symbol | Definition |
|---|---|---|
| Celsius | °C | Celsius places 0 at water's freezing point and 100 at its boiling point at sea level. |
| Fahrenheit | °F | Fahrenheit places 32 at water's freezing point and 212 at its boiling point at sea level. |
| Kelvin | K | Kelvin starts at absolute zero and uses the same increment as Celsius, so K = °C + 273.15. |
All temperature conversions
Every listed pair has its own page with the formula, examples and a chart. Choose the starting unit:
Frequently asked questions
How many temperature units are supported?
3 units, which gives 6 one-way conversions.
Are the factors exact?
They follow SI and international definitions. Where a unit is approximate by nature (for example Mach, months or fuel economy), the page says so.
Can I convert in both directions?
Yes. Every pair page has a swap link and the calculator accepts any decimal value.