Celsius to Fahrenheit Converter
Convert °C to °F: (°C × 9/5) + 32. 0°C = 32°F, 100°C = 212°F. Free calculator for weather, cooking, and travel.
How to Convert Celsius to Fahrenheit
Multiply Celsius by 9/5, then add 32.
Conversion Formula:
(value * 9/5) + 32Conversion Examples
Example: 25°C to °F
- 25 × 9/5 + 32 = 77°F
77°F
Room temperature.
Example: 180°C to °F
- 180 × 9/5 + 32 = 356°F
356°F
Hot oven.
Conversion Chart
| Celsius | Fahrenheit |
|---|---|
| -40 | -40 |
| -10 | 14 |
| 0 | 32 |
| 10 | 50 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 37 | 98.6 |
| 50 | 122 |
| 100 | 212 |
Conversion Formula
(°C × 9/5) + 32 = °F
Quick Conversion Tip
Double °C, subtract 10%, add 32 for a rough estimate; use the formula for accuracy.
Unit Definitions
Celsius (°C)
Celsius sets 0° at the freezing point of water and 100° at the boiling point at standard atmospheric pressure.
°C is offset from Kelvin by 273.15 (K = °C + 273.15) and relates to Fahrenheit through °F = (°C × 9/5) + 32.
Fahrenheit (°F)
Fahrenheit sets 32° at the freezing point of water and 212° at the boiling point, creating 180 degrees between those points.
Each °F is 5/9 of a Celsius degree. Convert from Celsius with (°C × 9/5) + 32 and back with (°F − 32) × 5/9.
Common Use Cases
- Weather and travel (metric → US).
- Recipe and oven temperatures.
- HVAC setpoints.
- Body temperature checks.
Understanding the Conversion
°F = (°C × 9/5) + 32. Multiply by 1.8, add 32.
Anchors: 0°C = 32°F · 20°C = 68°F · 37°C = 98.6°F · 100°C = 212°F · −40°C = −40°F.
Most common temp conversion—for US weather, ovens, and HVAC from metric readings.
FAQs
What is the formula for Celsius to Fahrenheit?
°F = (°C × 9/5) + 32, or multiply by 1.8 and add 32.
What is 0°C in Fahrenheit?
0°C equals 32°F (water freezing point).
What temperature is the same in both scales?
−40°C equals −40°F.