Free & Instant
Celsius to Fahrenheit
Converter
Instantly convert temperatures between Celsius and Fahrenheit with precision. No sign-ups, no ads — just fast results.
How It Works
Temperature conversion uses simple arithmetic. Here are the two formulas you need.
Celsius → Fahrenheit
°F = (°C × 9/5) + 32
Fahrenheit → Celsius
°C = (°F − 32) × 5/9
Quick Reference
Common temperature conversions at a glance.
| Celsius (°C) | Fahrenheit (°F) | Description |
|---|---|---|
| -273.15 | -459.67 | Absolute zero (0 Kelvin) |
| -40 | -40 | Scales intersect — same value on both |
| 0 | 32 | Freezing point of water |
| 20 | 68 | Room temperature |
| 37 | 98.6 | Normal human body temperature |
| 100 | 212 | Boiling point of water |
Frequently Asked Questions
Everything you need to know about temperature conversion.
To convert Celsius to Fahrenheit, multiply the Celsius value by 9/5 (or 1.8) and then add 32. The formula is: °F = (°C × 9/5) + 32. For example, 25°C would be (25 × 1.8) + 32 = 77°F.
To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit value and then multiply by 5/9. The formula is: °C = (°F − 32) × 5/9. For example, 98.6°F would be (98.6 − 32) × 5/9 = 37°C.
Celsius and Fahrenheit are equal at −40 degrees. This is the only point where both scales intersect.
The Fahrenheit scale was developed by Daniel Gabriel Fahrenheit in 1724. While most of the world switched to Celsius, the US retained Fahrenheit for everyday use due to historical convention.
Yes. Both 0°C and 32°F represent the freezing point of water at standard atmospheric pressure.
Normal human body temperature is 37°C (98.6°F). A temperature above 38°C (100.4°F) is generally considered a fever.
Absolute zero — the lowest possible temperature — is −273.15°C or −459.67°F. It is also 0 Kelvin. At this point, all molecular motion theoretically stops.