Fahrenheit to Celsius Converter
Convert degrees Fahrenheit to degrees Celsius with a two-way calculator. The formula is °C = (°F − 32) × 5/9. The chart below covers freezing, room, body and boiling temperatures.
Degrees fahrenheit to degrees Celsius calculator
How to convert degrees Fahrenheit to degrees Celsius
Worked example: convert 72 °F to °C. 72 − 32 = 40, then × 5/9 gives 22.22222 °C. Reverse it with °F = °C × 9/5 + 32.
Degrees fahrenheit to degrees Celsius chart
| Degrees fahrenheit (°F) | Degrees celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| -20 °F | -28.88889 °C |
| 0 °F | -17.77778 °C |
| 20 °F | -6.666667 °C |
| 32 °F | 0 °C |
| 40 °F | 4.444444 °C |
| 50 °F | 10 °C |
| 60 °F | 15.55556 °C |
| 68 °F | 20 °C |
| 70 °F | 21.11111 °C |
| 75 °F | 23.88889 °C |
| 80 °F | 26.66667 °C |
| 90 °F | 32.22222 °C |
| 98 °F | 36.66667 °C |
| 100 °F | 37.77778 °C |
| 120 °F | 48.88889 °C |
| 150 °F | 65.55556 °C |
| 212 °F | 100 °C |
| 250 °F | 121.1111 °C |
| 350 °F | 176.6667 °C |
| 400 °F | 204.4444 °C |
| 450 °F | 232.2222 °C |
Degrees celsius to degrees Fahrenheit (reverse)
| Degrees celsius (°C) | Degrees fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -30 °C | -22 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 35 °C | 95 °F |
About the degree Fahrenheit and the degree Celsius
On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees, so there are 180 degrees between the two. It is the everyday scale for weather, cooking and body temperature in the United States and a few other places.
The Celsius scale puts the freezing point of water at 0 degrees and its boiling point at 100 degrees at sea-level pressure. It is used for weather, cooking and science in nearly every country outside the United States.
Zero degrees Fahrenheit is -17.77778 °C, and 100 °F is 37.77778 °C.
Everyday sizes in degrees Fahrenheit and degrees Celsius
| Everyday example (approximate) | In degrees Fahrenheit | In degrees Celsius |
|---|---|---|
| The coldest air temperature ever recorded | -128.56 °F | -89.2 °C |
| A home freezer | -0.4 °F | -18 °C |
| Water freezes | 32 °F | 0 °C |
| A fridge | 39.2 °F | 4 °C |
| A comfortable room | 69.8 °F | 21 °C |
| A hot summer day | 95 °F | 35 °C |
| Normal human body temperature | 98.6 °F | 37 °C |
| A hot bath | 104 °F | 40 °C |
Degrees fahrenheit to degrees Celsius FAQ
What is 0 °F in °C?
0 °F equals -17.77778 °C. For reference, 100 °F equals 37.77778 °C, and the two scales cross at a different point only for Celsius and Fahrenheit, which agree at -40 degrees.
How do I convert degrees Fahrenheit to degrees Celsius without a calculator?
convert 72 °F to °C. 72 − 32 = 40, then × 5/9 gives 22.22222 °C. Reverse it with °F = °C × 9/5 + 32. In your head, subtract 30 from the Fahrenheit value and halve it: 80 °F becomes about 25 °C (the exact answer is 26.7 °C).
What is normal human body temperature in degrees Celsius?
Normal human body temperature is about 98.6 degrees Fahrenheit, which is 37 degrees Celsius. Treat that as an approximate everyday figure rather than an official measurement.
Which scale does my country use, degrees Fahrenheit or degrees Celsius?
Fahrenheit is used mainly in the United States and a few smaller countries; one Fahrenheit degree is 5/9 of a Celsius degree. Celsius is the everyday scale in almost every country except the United States; 0 °C is 273.15 K.