OpusDesk Hub Direct example
20 °C ≈ 68 °F.
Formula and calculation
°F = (°C × 1 + 0 − (-17.7777777778)) ÷ 0.555555555556
Substituting 20 °C gives approximately 68 °F. Definitions use the constants above; arithmetic uses browser floating point and displays at most 12 significant digits. The rounded table is not an instrument calibration or certified measurement.
Which units does this page use?
degrees Celsius: Celsius temperature scale; 0 °C equals 273.15 K.
degrees Fahrenheit: Fahrenheit temperature scale; 32 °F equals 0 °C.
When this direction is useful
Start here when your source record uses °C for weather reports and appliance settings, but the receiving specification is expressed in °F for US temperature displays and recipe temperatures. Enter the original quantity rather than reusing a previously rounded result. If your source uses °F, use the reverse converter instead.
Conversion table
| degrees Celsius (°C) | degrees Fahrenheit (°F) |
|---|---|
| -40 | -40 |
| 0 | 32 |
| 20 | 68 |
| 37 | 98.6 |
| 100 | 212 |
Limits and interpretation
This converts a temperature reading, not a temperature difference. The scale offsets matter. Values below absolute zero are rejected. Use a decimal dot; grouping commas are not accepted. No external rates, live data or account are involved.
Frequently asked questions
Can I convert the other way?
Yes. Convert degrees Fahrenheit to degrees Celsius with the inverse equation. Rounding a result before converting it back can introduce a small difference.
Are these the same as every similarly named unit?
No. Check the two definitions above. International length, avoirdupois mass, US customary liquid measures and temperature readings are explicitly distinguished; an ambiguous label on a source document must be resolved first.
Where do the conversion definitions come from?
They use SI and defined customary conversion relationships. See the NIST Guide for the Use of SI. Output formatting is this tool's display policy, not extra measurement accuracy.