Celsius to Fahrenheit Converter
Convert temperatures between Celsius (°C) and Fahrenheit (°F) instantly. Type in either field to see the conversion in real time.
Common reference points
How to Use
Simply type a temperature value in either the Celsius or Fahrenheit field. The other field updates automatically in real time.
You can also use the reference table below the converter for common temperature benchmarks.
How It Works
Celsius and Fahrenheit are the two most widely used temperature scales. Celsius is used in most countries worldwide and in scientific contexts. Fahrenheit is primarily used in the United States.
Celsius to Fahrenheit: °F = (°C × 9/5) + 32. Example: 25°C = (25 × 1.8) + 32 = 45 + 32 = 77°F.
Fahrenheit to Celsius: °C = (°F − 32) × 5/9. Example: 98.6°F = (98.6 − 32) × 5/9 = 66.6 × 0.5556 = 37°C.
Key reference points: Water freezes at 0°C (32°F) and boils at 100°C (212°F). Normal human body temperature is approximately 37°C (98.6°F). The two scales intersect at −40°.
