To convert temperatures, enter a value, choose the unit you have and the unit you want. The result updates as you type, with a formula line showing the conversion factor. Open All units to see the value in every unit at once, and choose how many decimal places to show.
How to use the Temperature Converter
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1
Enter a value
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2
Choose “from” and “to” units
Use the swap button to reverse.
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3
Copy the result
Features
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Exact factors
Based on internationally defined values.
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All units at once
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Adjustable precision
2 to 8 decimals.
Supported formats
| Conversion | Formula |
|---|---|
| °C → °F | °F = °C × 9/5 + 32 |
| °F → °C | °C = (°F − 32) × 5/9 |
| °C → K | K = °C + 273.15 |
Examples
- 100 °C = 212 °F (water boils at sea level)
- 37 °C = 98.6 °F (typical body temperature)
- 0 K = −273.15 °C (absolute zero)
Privacy and file handling
- Where it runs
- Runs in your browser
Runs entirely in your browser. Your files and text are not uploaded to our servers.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 (1.8) and add 32. For example, 30 °C × 1.8 + 32 = 86 °F.
Can Kelvin be negative?
No. 0 K is absolute zero, the lowest possible temperature, so the converter rejects negative Kelvin values.
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