Temperature · Celsius, Fahrenheit & Kelvin
Temperature · Celsius, Fahrenheit & Kelvin: use temperature, source scale, destination scale. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
C = (F−32)×5/9 = K−273.15; convert through Celsius
Variables & units
- Temperature
- Numeric value · minimum -1000000, maximum 1000000
- Source scale
- Select an option
- Destination scale
- Select an option
Worked example
25°C is 77°F or 298.15 K.
Assumptions
Absolute temperatures only, not temperature differences. Values below absolute zero are rejected.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
Calculated on your device. Your latest 100 calculations stay in this browser.