Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine with a live thermometer and reference band.
Temperature converter
Updates as you typeTry a preset
From
Value ?
°C
Unit
Common
Scientific
To
Result
°F
Unit
Common
Scientific
Formula
TF
=
TC
×
9⁄5
+
32
- °C → °F
- °F = °C × 9⁄5 + 32
- °F → °C
- °C = (°F − 32) × 5⁄9
- °C → K
- K = °C + 273.15
- K → °C
- °C = K − 273.15
- °C → °R
- °R = (°C + 273.15) × 9⁄5
- °R → °C
- °C = (°R − 491.67) × 5⁄9
Worked example — your numbers
- Input: —
- Convert to Celsius: —
- Convert Celsius → target: —
- Result: —
Every conversion routes through Celsius. That keeps four scales consistent with just two formulas per unit — one in, one out. The ratio for °C → °F is constant (1 °C = 1.8 °F), but Kelvin and Rankine are absolute, so an offset is added to align the zero point.