Celsius to Fahrenheit Formula
The complete formula for converting celsius (°C) to fahrenheit (°F). See the formula, how it works, and worked examples below.
°F = °C × 9/5 + 32
How the Formula Works
Temperature conversion between celsius and fahrenheit uses an offset formula, not a simple multiplication. This is because temperature scales have different zero points.
Worked Examples
0 °C to °F
- Start with 0°C
- Multiply by 9/5: 0 × 1.8 = 0
- Add 32: 0 + 32 = 32
- Result: 0°C = 32°F
20 °C to °F
- Start with 20°C
- Multiply by 9/5: 20 × 1.8 = 36
- Add 32: 36 + 32 = 68
- Result: 20°C = 68°F
37 °C to °F
- Start with 37°C
- Multiply by 9/5: 37 × 1.8 = 66.6
- Add 32: 66.6 + 32 = 98.6
- Result: 37°C = 98.6°F
100 °C to °F
- Start with 100°C
- Multiply by 9/5: 100 × 1.8 = 180
- Add 32: 180 + 32 = 212
- Result: 100°C = 212°F
200 °C to °F
- Start with 200°C
- Multiply by 9/5: 200 × 1.8 = 360
- Add 32: 360 + 32 = 392
- Result: 200°C = 392°F
Reverse Formula: Fahrenheit to Celsius
°C = (°F - 32) × 5/9
See the full Fahrenheit to Celsius formula for worked examples.
Related
Frequently Asked Questions
The formula is: °F = °C × 9/5 + 32. See the worked examples above for step-by-step breakdowns, or use the Celsius to Fahrenheit converter for instant results.
100 celsius = 212 fahrenheit. Apply the formula: °F = °C × 9/5 + 32.