What temperature should I use on fine hair?

Fine hair should be styled at 120-150°C for straighteners and curling irons. Fine hair is more susceptible to heat damage because the cortex is thinner. Always use heat protectant and limit to 1-2 passes.

Is titanium hotter than ceramic?

Titanium plates heat more evenly and transfer heat more efficiently, meaning you can use a lower temperature setting to achieve the same result. Reduce the temperature by about 10°C compared to ceramic tools for equivalent results.

Do I always need heat protectant?

Yes, heat protectant should be used whenever applying heat tools to hair. It creates a barrier that reduces moisture loss and thermal damage. Apply to damp or dry hair before any heat styling. It is especially critical for bleached, coloured or damaged hair.

How many passes should I make with a straightener?

Ideally, one slow pass at the correct temperature is better than multiple fast passes. Fine and damaged hair should have 1-2 passes maximum. Medium hair can tolerate 2-3 passes. Coarse hair may need 2-4 passes at a higher temperature.

CutCalcs

Heat Tool Temperature Calculator — Safe Heat Settings by Hair Type

Find the recommended and maximum safe temperature for straighteners, curling irons and dryers based on hair type and condition.

Hair Type

Select the type

Hair Condition

Select an option for hair condition

Tool

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Desired Result

Select an option for desired result

How We Calculate This

This calculator determines safe heat settings based on hair type (fine/medium/coarse), condition (virgin/coloured/bleached/damaged), tool type and desired result.

How it works

Base temperatures are set for each hair type and tool combination, then adjusted downward for chemical damage and upward for results requiring more heat. Bleached and damaged hair requires significantly lower temperatures to prevent further damage.

Frequently Asked Questions

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Last updated: March 2026

All calculations are estimates. Always perform a strand test before chemical services.