Temperature converter
Convert Fahrenheit to Celsius and Kelvin, with the formula and an oven temperature chart.
- 🇺🇸 US federal & state rules
- NIST SP 811 conversion factors
- See sources
°F to °C
22.22222222 °C
72 °F = 22.22222222 °C
- Fahrenheit
- 72 °F
- Celsius
- 22.22222222 °C
- Kelvin
- 295.3722222 K
Results are rounded to 10 significant digits. Use a minus sign for temperatures below zero.
Common values, °F to °C
| -40 °F | -40 °C |
|---|---|
| 0 °F | -17.7778 °C |
| 32 °F | 5.68434 × 10^-14 °C |
| 50 °F | 10 °C |
| 65 °F | 18.3333 °C |
| 68 °F | 20 °C |
| 72 °F | 22.2222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 212 °F | 100 °C |
| 350 °F | 176.667 °C |
| 400 °F | 204.444 °C |
| 450 °F | 232.222 °C |
72 °F in every unit
| Fahrenheit (°F) | 72 °F |
|---|---|
| Celsius (°C) | 22.22222222 °C |
| Kelvin (K) | 295.3722222 K |
Show the math
| Formula | °C = (°F - 32) × 5/9 |
|---|---|
| Result | 72 °F = 22.22222222 °C |
What to do next
How it works
Fahrenheit and Celsius do not start at the same zero, so you cannot just multiply. The converter turns the value into kelvin first (K = °C + 273.15, and °C = (°F - 32) × 5/9), then into the unit you picked.
Oven and everyday temperatures
| Fahrenheit | Celsius |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.78 °C |
| 32 °F | 5.684 × 10^-14 °C |
| 50 °F | 10 °C |
| 68 °F | 20 °C |
| 72 °F | 22.22 °C |
| 98.6 °F | 37 °C |
| 212 °F | 100 °C |
| 325 °F | 162.8 °C |
| 350 °F | 176.7 °C |
| 375 °F | 190.6 °C |
| 400 °F | 204.4 °C |
| 425 °F | 218.3 °C |
| 450 °F | 232.2 °C |
Things to keep in mind
Nothing can be colder than absolute zero (0 K, -459.67 °F), so the converter rejects anything below it.
Sources
Rules applied as of 2026-10-19. See the sources below for details.
- NIST SP 811, Appendix B.8: Factors for units listed alphabeticallyChecked 2026-10-19
- NIST: U.S. survey foot retired (acre now uses the international foot)Checked 2026-10-19
Frequently asked questions
How do I convert Fahrenheit to Celsius?
Subtract 32, then multiply by 5/9. For 72 °F that is (72 - 32) × 5/9 = 22.2 °C.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. 20 °C is 20 × 1.8 + 32 = 68 °F.
Is 98.6 °F still normal body temperature?
98.6 °F (37 °C) is the classic figure, but normal readings vary from person to person and through the day. This tool only converts the number.
At what temperature are Fahrenheit and Celsius the same?
-40. Minus 40 °F is exactly minus 40 °C.