Conversion tool
Convert degrees Fahrenheit to degrees Celsius instantly
Enter a value, see the result, copy it, and save a PDF snapshot.
Input
Type a value, then press Enter to calculate.
Result
0.000 deg C
Rounded for readability. Use the arrows to increase or decrease the number of shown digits.
Estimation mode
Enter your estimate in deg C, then reveal to compare.
Reveal summary
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- Percent error
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Disclaimer: Use calculations at your own risk. For critical applications, verify results against your governing standards/specifications.
How it works
We use deg C = (deg F - 32) x 5/9.
Exact relationship: deg C = (deg F - 32) x 5/9
Example: 32 deg F = 0.000 deg C.
Notes: Results are rounded in the default view.
Examples
- 32 deg F = 0.000 deg C
- 68 deg F = 20.000 deg C
- 212 deg F = 100.000 deg C
FAQ
What physical quantity do degrees Fahrenheit and degrees Celsius express?
Degrees Fahrenheit express temperature, meaning thermal state rather than size, speed, or mass. Degrees Celsius express temperature on a metric-friendly scale used heavily in science, engineering, and international technical work.
What is the difference between degrees Fahrenheit and degrees Celsius?
Degrees Fahrenheit and degrees Celsius both express temperature, but their zero points and scaling conventions differ, so temperature conversions often require both multiplication and an offset.
What is the history of the degree Fahrenheit?
The Fahrenheit scale was developed in the early eighteenth century and remains common in U.S. weather, HVAC, and consumer temperature contexts.
What is the history of the degree Celsius?
The Celsius scale was developed from the centigrade system and became the dominant everyday and technical temperature scale in most of the world.
Were the degree Fahrenheit and degree Celsius discovered by a specific person?
Fahrenheit was created as a temperature scale by Daniel Gabriel Fahrenheit rather than discovered as a natural object. Celsius was created as a defined scale associated with Anders Celsius and later standardized, not discovered as a natural object.
Where are degrees Fahrenheit and degrees Celsius used in science and engineering?
Degrees Fahrenheit are common in U.S. building systems, cooking, weather reporting, process equipment, and consumer product interfaces. Degrees Celsius are used in laboratories, industrial processes, environmental control, standards documents, and international engineering communication.
Why are temperature conversions different from simple unit ratios?
Temperature scales can have different zero points, so many conversions need both a scale factor and an offset rather than a single multiplication constant.
Can I trust this for critical calculations?
Use this for convenience and verify against your governing standard, specification, or process requirement for critical work. Temperature interpretation often depends on context, instrumentation, and tolerance.
References
- Exact relationship used: deg C = (deg F - 32) x 5/9
- Temperature conversions may require both a multiplier and an offset because the scales do not share the same zero point.