Convert Fahrenheit to Celsius
350 °F = 176.6667 °C
°C = (°F − 32) × 5/9Convert Fahrenheit to Celsius instantly — type in either box and it works both ways.
How to convert Fahrenheit to Celsius
To convert degrees Fahrenheit to degrees Celsius, subtract 32 from the Fahrenheit temperature, then multiply by 5/9 (or divide by 1.8).
°C = (°F − 32) × 5/9
Example: convert 350 °F to °C
- (350 − 32) = 318
- 318 × 5/9 = 176.6667
- 350 °F = 176.6667 °C
Fahrenheit to Celsius conversion chart
| Degrees Fahrenheit (°F) | Degrees Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| -20 °F | -28.8889 °C |
| -10 °F | -23.3333 °C |
| 0 °F | -17.7778 °C |
| 10 °F | -12.2222 °C |
| 20 °F | -6.6667 °C |
| 25 °F | -3.8889 °C |
| 30 °F | -1.1111 °C |
| 37 °F | 2.7778 °C |
| 40 °F | 4.4444 °C |
| 50 °F | 10 °C |
| 100 °F | 37.7778 °C |
| 150 °F | 65.5556 °C |
| 180 °F | 82.2222 °C |
| 200 °F | 93.3333 °C |
How to convert Celsius to Fahrenheit
To convert degrees Celsius to degrees Fahrenheit, multiply the Celsius temperature by 9/5 (or 1.8), then add 32.
°F = °C × 9/5 + 32
Example: convert 25 °C to °F
- 25 × 9/5 = 45
- 45 + 32 = 77
- 25 °C = 77 °F
Quick mental trick: subtract 30 and halve it
For a rough estimate, subtract 30 from the Fahrenheit number and divide by 2. 70 °F → 40 ÷ 2 = 20 °C (the exact answer is 21.1 °C). It works well for weather; for oven temperatures or a fever, use the exact converter above.
Common temperatures in Celsius and Fahrenheit
| What | °C | °F |
|---|---|---|
| Water freezes | 0 °C | 32 °F |
| Home freezer | -18 °C | -0.4 °F |
| Fridge | 4 °C | 39.2 °F |
| Cool day | 10 °C | 50 °F |
| Room temperature | 21 °C | 69.8 °F |
| Warm summer day | 30 °C | 86 °F |
| Normal body temperature | 37 °C | 98.6 °F |
| Fever | 38.5 °C | 101.3 °F |
| Hot bath | 40 °C | 104 °F |
| Cooked chicken (safe inside) | 74 °C | 165.2 °F |
| Water boils (sea level) | 100 °C | 212 °F |
| Moderate oven | 180 °C | 356 °F |
| Hot oven | 220 °C | 428 °F |
Fahrenheit to Celsius chart (−20 °F to 220 °F)
Popular Fahrenheit to Celsius conversions
Celsius vs. Fahrenheit
Celsius (°C) is used for weather, cooking and medicine in almost every country. It puts the freezing point of water at 0 °C and the boiling point at 100 °C, so one Celsius degree is 1/100 of that gap.
Fahrenheit (°F) is the everyday scale in the United States and a few other places. Water freezes at 32 °F and boils at 212 °F — a gap of 180 degrees. That is why one Celsius degree equals 1.8 Fahrenheit degrees, and why the formula multiplies by 9/5 (= 1.8) and shifts by 32.
Scientists usually work in Kelvin, which starts at absolute zero (−273.15 °C) and uses the same degree size as Celsius.
Frequently asked questions
What is the formula for Fahrenheit to Celsius?
°C = (°F − 32) × 5/9. Subtract 32, then multiply by 5/9 (or divide by 1.8).
What is 350 °F in Celsius?
350 °F is about 176.7 °C. Many recipes round it to 180 °C (160 °C in a fan oven).
What is 98.6 °F in Celsius?
98.6 °F is exactly 37 °C, normal body temperature.
What is 100 °F in Celsius?
100 °F is about 37.8 °C — a mild fever in a person, or a very hot day outside.
What is 70 °F in Celsius?
70 °F is about 21.1 °C, a comfortable room temperature.
How do you convert Fahrenheit to Celsius?
To convert degrees Fahrenheit to degrees Celsius, subtract 32 from the Fahrenheit temperature, then multiply by 5/9 (or divide by 1.8). The formula is °C = (°F − 32) × 5/9.
How many degrees Celsius are in one Fahrenheit?
1 °F = -17.2222 °C.
How do I convert degrees Celsius back to degrees Fahrenheit?
Use the reverse formula: °F = °C × 9/5 + 32. For example 1 °C = 33.8 °F.
At what temperature are Celsius and Fahrenheit equal?
−40 °C is exactly −40 °F. It is the only temperature where both scales show the same number.
Is this converter free and accurate?
Yes. It is free, uses exact internationally defined conversion factors, and runs in your browser — nothing you type is sent anywhere.