Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin.
How it works
°F = °C × 9/5 + 32; K = °C + 273.15
Converts via Celsius. Note 0 °C = 32 °F = 273.15 K.
Worked example
Convert 25 °C:
- Fahrenheit:
25 × 9/5 + 32 = 77 °F - Kelvin:
25 + 273.15 = 298.15 K
Check backwards: 77 °F → (77 − 32) × 5/9 = 25 °C.
Notes and limitations
Convert via Celsius to avoid compounding rounding. Note −40 °C = −40 °F is the only point where the scales meet, and absolute zero is −273.15 °C = 0 K.