Conversions
Temperature Converter
Switch between Celsius, Fahrenheit, Kelvin, and Rankine without juggling separate formulas.
temperaturecelsiusfahrenheitkelvin
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly.
Celsius (°C)
0
Fahrenheit (°F)
32
Kelvin (K)
273.15
Rankine (°R)
491.67
Temperature relationships
°F = (°C × 9/5) + 32 K = °C + 273.15 °R = °F + 459.67
The converter keeps every scale in sync so changing one instantly updates the rest.
How to use
- Enter a value in any supported scale.
- Select the unit that matches your input.
- Review the converted temperatures across the remaining scales.
Example
Input: Value = 32 °F
Output: °C = 0, K = 273.15, °R = 491.67
FAQ & notes
Why does Kelvin never go below zero?
Kelvin uses absolute zero as 0, so temperatures cannot drop below that limit. The converter enforces the threshold automatically.
Can I convert negative temperatures?
Yes—negative values are supported for Celsius and Fahrenheit, and the equivalent Kelvin or Rankine values adjust accordingly.