Fahrenheit to Celsius (°F to °C)
°C = (°F − 32) × 5 ÷ 9
| degrees Fahrenheit | degrees Celsius |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.78 °C |
| 32 °F | 0 °C |
| 50 °F | 10 °C |
| 60 °F | 15.56 °C |
| 68 °F | 20 °C |
| 70 °F | 21.11 °C |
| 72 °F | 22.22 °C |
Temperature scales have different zero points as well as different degree sizes, so there is no single multiplier. Subtract 32 from the Fahrenheit reading, then multiply by 5/9.
Formula
°C = (°F − 32) × 5 ÷ 9
Example: 50 degrees Fahrenheit = 10 degrees Celsius.
How to convert degrees Fahrenheit to degrees Celsius in your head
- Subtract 30, then halve: 70 °F → 40 → 20 °C (exact: 21.1). Good for weather, poor for ovens.
- Each 9 °F is 5 °C. From a known point such as 50 °F = 10 °C, 59 °F is 15 °C and 68 °F is 20 °C.
- For oven settings, subtract 32 and multiply by 5/9 exactly, then round to the nearest 5 or 10 °C as recipes do: 375 °F → 190.6 → 190 °C.
Fahrenheit to Celsius chart
| degrees Fahrenheit | degrees Celsius |
|---|---|
| -40 | -40 |
| 0 | -17.7778 |
| 32 | 0 |
| 50 | 10 |
| 60 | 15.5556 |
| 68 | 20 |
| 70 | 21.1111 |
| 72 | 22.2222 |
| 80 | 26.6667 |
| 90 | 32.2222 |
| 98.6 | 37 |
| 100 | 37.7778 |
| 212 | 100 |
| 325 | 162.778 |
| 350 | 176.667 |
| 375 | 190.556 |
| 400 | 204.444 |
| 425 | 218.333 |
| 450 | 232.222 |
Fahrenheit to Celsius chart for weather, the body and the oven
| What | degrees Fahrenheit | degrees Celsius |
|---|---|---|
| Fahrenheit and Celsius meet | -40 | -40 |
| 0 °F | 0 | -17.7778 |
| Water freezes (sea level) | 32 | 0 |
| 40 | 4.44444 | |
| 50 | 10 | |
| 65 | 18.3333 | |
| Room temperature (example) | 72 | 22.2222 |
| 85 | 29.4444 | |
| Typical body temperature | 98.6 | 37 |
| Fever threshold (commonly used) | 100.4 | 38 |
| 104 | 40 | |
| Water boils (sea level) | 212 | 100 |
| Low oven | 300 | 148.889 |
| Moderate oven | 350 | 176.667 |
| 375 | 190.556 | |
| Hot oven | 400 | 204.444 |
| 425 | 218.333 | |
| 450 | 232.222 |
Good to know
Weather: a quick estimate is to subtract 30 and halve. 80 °F − 30 = 50, ÷ 2 = 25 °C (exact: 26.7). The estimate drifts at extremes, so use the exact figure for anything that matters.
Cooking: 350 °F is 177 °C, usually rounded to 180 °C on European recipes; 400 °F is 204 °C (200 °C). Fan ovens are typically set about 20 °C lower than conventional ones — check your oven's manual.
Body temperature: 98.6 °F is 37 °C. A fever is commonly defined as 100.4 °F (38 °C) or higher.
Read next: High-temperature °F to °C chart: ovens, pizza ovens, kilns and forges
Common fahrenheit to celsius mistakes
- Multiplying before subtracting. (°F − 32) × 5/9 is not °F × 5/9 − 32: for 100 °F the first gives 37.8 °C, the second 23.6.
- Converting a temperature difference with the full formula. A rise of 18 °F is a rise of 10 °C (18 × 5/9); do not subtract 32 for differences.
- Assuming the subtract-30-and-halve shortcut works in the kitchen. At 400 °F it gives 185 °C; the real value is 204.4 °C.
Sources
Frequently asked questions
What is 100 °F in Celsius?
100 °F is 37.8 °C.
What is 350 °F in Celsius for baking?
350 °F is 176.7 °C, usually written as 180 °C on metric recipes.
When are Fahrenheit and Celsius the same?
At −40 degrees: −40 °F equals −40 °C.
Is there a Fahrenheit to Celsius chart I can print?
Yes. The chart and reference table on this page cover −40 °F to 450 °F, and every value is calculated from °C = (°F − 32) × 5/9.
What is 72 °F in Celsius?
72 °F is 22.2 °C.
What is 400 °F in Celsius?
400 °F is 204.4 °C, usually written as 200 °C on metric recipes.
How do you convert a temperature change from °F to °C?
Multiply the change by 5/9 and do not subtract 32. A change of 9 °F is a change of 5 °C.