Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly
Convert Temperature
Celsius (°C) -
Fahrenheit (°F) -
Kelvin (K) -
Quick Reference
Absolute zero -273.15°C | -459.67°F | 0K
Water freezes 0°C | 32°F | 273.15K
Body temperature 37°C | 98.6°F | 310.15K
Water boils 100°C | 212°F | 373.15K
Temperature Scales
There are three main temperature scales used around the world: Celsius, Fahrenheit, and Kelvin. Each has its own history and specific applications.
Celsius (°C)
Developed by Anders Celsius in 1742, it's the most widely used scale worldwide. It's based on the freezing point (0°C) and boiling point (100°C) of water at sea level.
Fahrenheit (°F)
Created by Daniel Gabriel Fahrenheit in 1724, it's primarily used in the United States. Water freezes at 32°F and boils at 212°F.
Kelvin (K)
It's the temperature unit of the International System (SI), used in scientific contexts. Absolute zero (0K) is the lowest theoretically possible temperature, where molecules stop moving.
Conversion Formulas
°F = (°C × 9/5) + 32
°C = (°F - 32) × 5/9
K = °C + 273.15