Temperature Converter
Convert temperature across 4 supported units with free instant calculations, formula guidance and examples. No sign-up required.
Calculations run in your browser. Results use approximately 12 significant digits, with floating-point rounding. Verify safety-critical measurements against applicable standards.
About Temperature conversion
Convert between 4 temperature units, including Celsius (°C), Fahrenheit (°F), Kelvin (K), Rankine (°R). Results update immediately when you edit the number or select another unit.
Absolute temperature scales have different zero points. Convert temperature differences with the separate Temperature Difference tool.
Example calculation
1 °C = 33.8 °F. This category requires a scale-specific equation rather than a single universal multiplier.
How to use
- Enter your amount in the field above.
- Select the original and destination temperature units.
- Copy the calculated result or swap the units to reverse the conversion.
Frequently asked questions
Can I convert temperature units for free?
Yes, the calculation runs locally in your browser with no sign-up.
Which units are supported?
This category currently includes 4 entries. Select the units from the dropdowns above.
Are the results suitable for professional use?
Absolute temperature scales have different zero points. Convert temperature differences with the separate Temperature Difference tool. Check critical work against an applicable standard.
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Unit definition reference: NIST Guide to the SI.