Temperature Converter
Celsius, Fahrenheit and Kelvin — convert any value instantly
About this tool
This free temperature converter instantly translates any temperature between Celsius (°C), Fahrenheit (°F), and Kelvin (K). Type a value in any field and the other two update in real time. It is the fastest way to convert oven temperatures for recipes, body temperatures for medical reference, or weather forecasts when traveling internationally.
Key reference points: water freezes at 0°C / 32°F / 273.15 K and boils at 100°C / 212°F / 373.15 K at standard sea-level pressure. Normal human body temperature is 37°C / 98.6°F. Room temperature is typically 20–22°C / 68–72°F. A hot oven runs around 200°C / 400°F. Absolute zero — the coldest possible temperature — is −273.15°C / −459.67°F / 0 K.
Celsius is used by almost every country in the world for everyday weather and cooking. The United States, along with a handful of other countries, still uses Fahrenheit for weather and informal temperature references. Kelvin is the SI base unit of temperature used in science and engineering because it starts at absolute zero, making it ideal for equations in thermodynamics, astrophysics, and chemistry where negative temperatures would complicate calculations.
Quick conversion formulas: °F to °C: subtract 32, then multiply by 5/9. °C to °F: multiply by 9/5, then add 32. °C to K: add 273.15. K to °C: subtract 273.15.