Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin.
What is a Temperature Converter?
A temperature converter converts values between the three main temperature scales: Celsius (°C), Fahrenheit (°F), and Kelvin (K). Each scale has different reference points and is used in different contexts around the world.
How to Use This Tool
- Enter a temperature in any scale field.
- The equivalent values in other scales appear instantly.
Conversion Formulas
Celsius to Fahrenheit: °F = (°C × 9/5) + 32
Fahrenheit to Celsius: °C = (°F − 32) × 5/9
Celsius to Kelvin: K = °C + 273.15
Kelvin to Celsius: °C = K − 273.15
Key Reference Points
Water freezes at 0°C = 32°F = 273.15K. Water boils at 100°C = 212°F = 373.15K. Average body temperature: 37°C = 98.6°F. Absolute zero: −273.15°C = −459.67°F = 0K.
Frequently Asked Questions
Why does the US use Fahrenheit?
The US adopted Fahrenheit in the 18th century and has not switched to the metric system like most countries. Most scientific work uses Celsius or Kelvin regardless.
What is absolute zero?
Absolute zero (0K = −273.15°C) is the theoretical lowest possible temperature, at which all molecular motion stops.
