Temperature Converter
Convert °C, °F, and K with the correct offset formulas.
Convert temperatures between Celsius, Fahrenheit, and Kelvin with the correct offset formulas. Whether it's weather, cooking, or a science assignment, you get the right answer — including below-freezing and absolute-zero edge cases.
How it's calculated
Conversions go through Celsius: °F → °C is (°F − 32) × 5/9, and K → °C is K − 273.15; going back, °C → °F is °C × 9/5 + 32 and °C → K is °C + 273.15.
Frequently asked questions
What is 100°C in Fahrenheit?
212 °F. Enter 100, choose °C → °F — the formula is 100 × 9/5 + 32.
Can I just multiply to convert temperatures?
No. Temperature scales have different zero points, so you can't just multiply — the calculator uses the proper offset formulas for every conversion.
What is absolute zero in Celsius?
−273.15 °C, which is 0 Kelvin. The calculator handles it fine — try entering 0 K.