CALCULATOR · Converters
Temperature Converter
Celsius, Fahrenheit and Kelvin converted with exact thermodynamic formulas.
Show formula
°F = °C×9/5+32 · K = °C+273.15 (exact offsets)
Inputs
Result
Your result appears here
Enter Value to convert and the result fills in as you type.
How it works
- Enter the value you want to convert.
- Pick the source and target units — use ⇄ to swap instantly.
- Read the converted result with full precision.
Frequently asked questions
Why is temperature different from other units?
Temperature scales have offsets, not just factors — the engine handles the affine mapping exactly.
Do the formulas round?
Never. Rounding happens only when displaying.
Is there a quick way to convert Celsius to Fahrenheit in my head?
Double it and add 30 for a rough figure: 20 °C comes out at about 70 °F (exactly 68 °F). The shortcut drifts further from the exact answer at very high or very low temperatures.
What is absolute zero in Celsius and Fahrenheit?
0 K = −273.15 °C = −459.67 °F, the lowest temperature physically possible.
Examples
- What is 37 °C in Fahrenheit?
- 98.6 °F (37 × 9/5 + 32) — normal body temperature.
- What is 350 °F in Celsius?
- 176.67 °C ((350 − 32) × 5/9), the moderate oven that recipes often round to 175–180 °C.
- At what temperature are Celsius and Fahrenheit equal?
- At −40: −40 °C is exactly −40 °F.
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