Fahrenheit to Celsius Converter
Convert °F to °C: (°F − 32) × 5/9. 32°F = 0°C, 212°F = 100°C. Free calculator for weather and cooking.
How to Convert Fahrenheit to Celsius
Subtract 32 from Fahrenheit, then multiply by 5/9.
Conversion Formula:
(value - 32) * 5/9Conversion Examples
Example: 77°F to °C
- (77 − 32) × 5/9 ≈ 25°C
≈ 25°C
Room temperature.
Example: 350°F to °C
- (350 − 32) × 5/9 ≈ 177°C
≈ 177°C
Baking oven.
Conversion Chart
| Fahrenheit | Celsius |
|---|---|
| -40 | -40 |
| 0 | -17.78 |
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 77 | 25 |
| 86 | 30 |
| 98.6 | 37 |
| 122 | 50 |
| 212 | 100 |
Conversion Formula
(°F − 32) × 5/9 = °C
Quick Conversion Tip
Subtract 32, then multiply by 5/9 (or divide by 1.8).
Unit Definitions
Fahrenheit (°F)
Fahrenheit defines water freezing at 32°F and boiling at 212°F under standard pressure, splitting the interval into 180 degrees.
Each Fahrenheit degree is 5/9 of a Celsius degree. Subtract 32 then multiply by 5/9 to convert to Celsius; add 459.67 to reach Rankine.
Celsius (°C)
Celsius sets 0° at water’s freezing point and 100° at boiling under standard pressure, creating a 100-degree interval.
Multiply Fahrenheit by 5/9 after subtracting 32 to reach Celsius. Add 273.15 to Celsius to reach Kelvin when absolute temperatures are needed.
Common Use Cases
- International weather from US sources.
- Recipe conversion to metric.
- Science and lab work.
- Thermostat settings abroad.
Understanding the Conversion
°C = (°F − 32) × 5/9. Subtract 32, multiply by 5/9.
Anchors: 32°F = 0°C · 68°F = 20°C · 98.6°F = 37°C · 212°F = 100°C.
Use when US forecasts or oven dials need metric °C.
International weather from US sources. The table and FAQ on this page walk through the factor if you need it.
FAQs
What is the formula for Fahrenheit to Celsius?
°C = (°F − 32) × 5/9.
What is 98.6°F in Celsius?
About 37°C (normal body temperature).
How do you convert oven 350°F to Celsius?
(350 − 32) × 5/9 ≈ 177°C.