How to Convert Celsius to Fahrenheit
Converting Celsius to Fahrenheit is essential when traveling between countries that use different temperature scales. This is commonly needed for weather forecasts, cooking, and scientific applications.
0.0 °C = 32.00 °F
To convert Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
Step-by-Step
- Start with your value: 0.0 °C
- Multiply by 1.8 (or 9/5)
- Add 32
- Result: 32.00 °F
Formula: °F = (°C × 9/5) + 32
💡 Memory Tip: 0°C = 32°F (freezing point of water). 100°C = 212°F (boiling point). Body temperature is about 37°C = 98.6°F.
Celsius to Fahrenheit Quick Reference
| °C | °F | Common Reference |
|---|---|---|
| -40 | -40 | Coldest (same in both!) |
| 0 | 32 | Freezing point of water |
| 20 | 68 | Room temperature |
| 37 | 98.6 | Body temperature |
| 100 | 212 | Boiling point of water |
Understanding Celsius and Fahrenheit
What is Celsius?
Celsius (°C) is a temperature scale used by most countries worldwide. Water freezes at 0°C and boils at 100°C at sea level. The scale was originally called centigrade and is part of the metric system.
What is Fahrenheit?
Fahrenheit (°F) is primarily used in the United States. Water freezes at 32°F and boils at 212°F. The scale was created by Daniel Gabriel Fahrenheit in 1724.
Learn more about Celsius on Wikipedia →
Key Facts
US weather forecasts use Fahrenheit. Most countries use Celsius for daily temperatures. Scientific applications always use Celsius or Kelvin.
Key Conversion Points
- -40°C = -40°F (same in both scales)
- 0°C = 32°F (freezing)
- 20°C = 68°F (comfortable room)
- 37°C = 98.6°F (body temp)
- 100°C = 212°F (boiling)
✅ Free to use ✅ No registration required ✅ Accurate to 2 decimal places
Frequently Asked Questions
0 °C equals 32.00 °F. Formula: (°C × 9/5) + 32 = °F
°F = (°C × 9/5) + 32
For 0°C: (0 × 1.8) + 32 = 32.00°F
0 °C = 273.15 K (add 273.15 for Kelvin).
0°C is cold (32.0°F). Jacket weather.
Quick estimate: double the Celsius and add 30. For 20°C: 40 + 30 = 70°F (actual: 68°F). Close enough!