Convert a straightener's temperature setting between units.
Temperature settings are often shown in Fahrenheit, and the Celsius conversion allows comparison with tools that display metric units. Heat damage depends on how hot the plates get, so knowing the true temperature helps choose the lowest setting that still smooths hair.
Hair Straightener Heat
Celsius = (Fahrenheit - 32) x 5/9
Celsius = (Fahrenheit - 32) x 5/9 Temperature settings are often shown in Fahrenheit, and the Celsius conversion allows comparison with tools that display metric units.
Heat damage depends on how hot the plates get, so knowing the true temperature helps choose the lowest setting that still smooths hair.
This calculator takes 2 inputs: Heat setting, Hair type. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.