⚡
Immediate conversion
Enter a value, choose the units and press the button.
Online Calculator
Temperature converter
Convert °C, °F, and K while preventing values below absolute zero.
The tool checks the absolute zero limit: 0 K = -273.15 °C = -459.67 °F.
Information
🔒
Local processing
The conversion is done directly in your browser.
💸
Free
No registration, external API or subscription required.
Frequently asked questions
How do you convert Celsius to Fahrenheit?
°F = °C × 9/5 + 32.
What is absolute zero?
0 K, equivalent to -273.15 °C or -459.67 °F.
Does kelvin use a degree symbol?
No. It is written as K, without the ° symbol.
Can it convert values below zero?
Yes, as long as they are not below absolute zero.