Celsius to Fahrenheit converter

Convert degrees Celsius (°C) to degrees Fahrenheit (°F). Formula: °F = °C × 9/5 + 32.

Converter tool

Formula: °F = °C × 9/5 + 32

Quick examples

CelsiusFahrenheit
-40-40
032
2068
3798.6
100212

How to convert Celsius to Fahrenheit

Formula: °F = °C × 9/5 + 32.

Reverse conversion: °C = (°F − 32) × 5/9

Tip: Use the swap button to reverse the calculation instantly.

Celsius → Fahrenheit FAQs

What constants are used?

We use exact constants: 273.15 and 459.67 for Kelvin relations; 9/5 and 5/9 for °C/°F.

How do I go the other way?

°C = (°F − 32) × 5/9

Are the results rounded?

Calculations use exact constants; values are displayed with sensible rounding for readability.