Free online temperature converter

Celsius to Fahrenheit Converter

Convert degrees Celsius to degrees Fahrenheit instantly with a temperature calculator built for science, weather, cooking, engineering, HVAC, and technical reference.

°C to °F resultsOffset formula supportExamples and FAQFree online use

°C to °F Calculator

Enter a temperature value and the conversion updates automatically.

Result updates automatically.

°F = (°C × 9/5) + 32

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How to Convert Celsius to Fahrenheit

Temperature conversion is different from simple unit multiplication because Celsius, Fahrenheit, Kelvin, and Rankine use different zero points. This converter applies the correct offset formula and keeps a clear reference for checking results.

100 °C

212 °F

Formula

°F = (°C × 9/5) + 32

Reference scale

The calculator converts through Celsius internally for reliable offset-based temperature conversion.

Temperature Formula Notes

Use the calculator for automatic conversion or use these formula notes to verify the result manually.

100 °C212 °F
Formula°F = (°C × 9/5) + 32
Reference scaleThe calculator converts through Celsius internally for reliable offset-based temperature conversion.

Celsius to Fahrenheit Converter FAQ

What is the formula?

°F = (°C × 9/5) + 32

Why is temperature conversion not just multiplication?

Temperature scales use different zero points, so most conversions need both a multiplier and an offset.

Can I reverse the conversion?

Yes. Use the swap button to reverse the selected temperature units and calculate the opposite direction.