How to Convert Fahrenheit to Celsius
Converting Fahrenheit to Celsius is essential when traveling to countries using metric temperatures. This is commonly needed for weather forecasts, oven temperatures, and scientific calculations.
1.0 °F = -17.22 °C
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9 (or 0.5556).
Step-by-Step
- Start with your value: 1.0 °F
- Subtract 32
- Multiply by 5/9 (or 0.5556)
- Result: -17.22 °C
Formula: °C = (°F - 32) × 5/9
💡 Memory Tip: 32°F = 0°C (freezing). 68°F = 20°C (room temp). 212°F = 100°C (boiling). Quick estimate: subtract 32, then halve (for close approximation).
Fahrenheit to Celsius Quick Reference
| °F | °C | Common Reference |
|---|---|---|
| 0 | -17.78 | Cold winter day |
| 32 | 0 | Freezing point of water |
| 50 | 10 | Cool spring day |
| 68 | 20 | Room temperature |
| 98.6 | 37 | Body temperature |
| 212 | 100 | Boiling point of water |
What does 1 fahrenheit look like in real life?
Real-world objects and measurements that are approximately 1 degree fahrenheit (-17.22 celsius) — useful for visualizing the size of 1 degree fahrenheit without a ruler:
- a refrigerator (40°F)
- a cold autumn day
Understanding Fahrenheit and Celsius
What is a Degree Fahrenheit?
The degree Fahrenheit (°F) is a unit of temperature on the Fahrenheit scale, primarily used in the United States. Water freezes at 32°F and boils at 212°F at standard atmospheric pressure.
Learn more about fahrenheit on Wikipedia →
What is a Degree Celsius?
The degree Celsius (°C) is a unit of temperature on the Celsius scale, a temperature scale originally based on 0°C for the freezing point of water and 100°C for the boiling point of water at 1 atmosphere of pressure.
Learn more about celsius on Wikipedia →
Common Uses of Fahrenheit
Weather reports in the US, Cooking and baking (ovens, stovetop), Body temperature (medical, US), Home thermostats in the US.
Key Conversion Points
- -40°F = -40°C (same in both scales)
- 32°F = 0°C (freezing)
- 68°F = 20°C (room temp)
- 98.6°F = 37°C (body temp)
- 212°F = 100°C (boiling)
✅ Free to use ✅ No registration required ✅ Accurate to 2 decimal places
Frequently Asked Questions
1 °F equals -17.22 °C. Formula: (°F - 32) × 5/9 = °C
°C = (°F - 32) × 5/9
For 1°F: (1 - 32) × 0.556 = -17.22°C
1 °F = 255.93 K
1°F is cold (-17.2°C). Bundle up!
1°F = -17°C. Gas mark 1 (UK gas mark equivalent).
