Temperature Converter
Conversion
Convert Celsius to Fahrenheit and Kelvin.
Formula
°F = °C × 9/5 + 32; K = °C + 273.15
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations retain full precision.
Example Calculation
Example inputs
- Temperature: 25 °C
25°C equals 77°F and 298.15 K.
Frequently asked questions
How do I use this calculator?
Enter temperature. The result updates automatically. Use Reset to restore the example values.
What method does it use?
°F = °C × 9/5 + 32; K = °C + 273.15. Follow the units and definitions shown with the inputs to apply this relationship consistently.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.