Temperature

Convert temperature between Celsius, Fahrenheit and Kelvin, including the offsets that trip people up, with the freezing and boiling points for each.

5 free temperature tools, no signup.

• Celsius to Fahrenheit ConverterConvert Celsius to Fahrenheit instantly, and back again. Uses the exact F = C x 9/5 + 32 formula.
• Celsius to Kelvin ConverterConvert Celsius to Kelvin and back, plus Fahrenheit, for science and engineering.
• Fahrenheit to Celsius ConverterConvert Fahrenheit to Celsius instantly, and back again. Uses the exact C = (F - 32) x 5/9 formula.
• Kelvin to Celsius ConverterConvert Kelvin to Celsius instantly, and Celsius back to Kelvin. Based on the exact 0 K = -273.15 °C offset.
• Temperature ConverterConvert temperature between Celsius, Fahrenheit, and Kelvin. Exact formulas with a one-click swap between scales.