Fahrenheit to Celsius Converter (°F to °C)
Convert Fahrenheit to Celsius instantly. Essential for travel, science, and understanding international weather reports.
Converted Result
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Celsius
Converting Fahrenheit to Celsius
How to convert Fahrenheit to Celsius?
Converting Fahrenheit to Celsius is a common task, especially for travelers visiting the US from metric-using countries. The formula involves subtracting 32 and then multiplying by a fraction.
- 32°F = 0°C (Freezing)
- 212°F = 100°C (Boiling)
Formula: Celsius = (Fahrenheit - 32) × 5/9
Step-by-Step Calculation
- Start with the temperature in Fahrenheit (e.g., 68°F).
- Subtract 32 from that number (68 - 32 = 36).
- Multiply the result by 5 (36 × 5 = 180).
- Divide by 9 (180 ÷ 9 = 20).
- The result is 20°C.
Common Fahrenheit to Celsius Conversions
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 32°F | 0°C |
| 50°F | 10°C |
| 68°F | 20°C |
| 77°F | 25°C |
| 86°F | 30°C |
| 98.6°F | 37°C |
| 100°F | 37.8°C |
| 212°F | 100°C |
Frequently Asked Questions
What is 100 Fahrenheit in Celsius?
100°F is approximately 37.8°C. It's considered a very hot day or a low-grade fever.
How do I calculate F to C in my head?
Subtract 30 from the Fahrenheit number and divide by 2. It's not exact, but it's close enough for weather. (e.g., 70°F - 30 = 40; 40 / 2 = 20°C).