Loona Calculators
Convert fahrenheit to celsius instantly — type any value and the result appears as you type. Below you will find the exact formula, a °F to °C conversion table and a worked example.
Formula: Celsius = (°F − 32) × 5/9. Subtract 32 from the Fahrenheit temperature, then multiply by 5/9.
Question: How many celsius is 98.6 °F — normal human body temperature?
Steps: Take the value in fahrenheit: 98.6 °F. Apply the formula: Celsius = (°F − 32) × 5/9. That gives 98.6 → 37 °C (rounded to four decimal places).
Result: 98.6 °F = 37 °C.
| Fahrenheit (°F) | Celsius (°C) |
| -40 °F | -40 °C |
| 0 °F | -17.7778 °C |
| 32 °F | 0 °C |
| 40 °F | 4.4444 °C |
| 50 °F | 10 °C |
| 60 °F | 15.5556 °C |
| 70 °F | 21.1111 °C |
| 80 °F | 26.6667 °C |
| 90 °F | 32.2222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 212 °F | 100 °C |
Need a value that is not in the table — or the reverse direction? Use the converter at the top of this page or the celsius to fahrenheit converter, or the full Unit Converter for every unit in one place.
Use the formula °C = (°F − 32) × 5/9. For example, (68 °F − 32) × 5/9 = 20 °C. The converter above applies it instantly.
There is no fixed number — the scales start at different zeros. Each 1 °F step equals a 5/9 °C step, and the anchor points are 32 °F = 0 °C and 212 °F = 100 °C.
100 °F = 37.7778 °C — a very hot day.
Use the reverse conversion — our celsius to fahrenheit converter does it instantly.
Water freezes at 32 °F = 0 °C and boils at 212 °F = 100 °C. Room temperature is about 68–72 °F (20–22 °C), and body temperature is 98.6 °F = 37 °C.
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