Hair Color Level Chart & Lift Calculator

How the hair color level chart counts lift and sessions

Every hair color formula starts from two questions: what level is the hair now, and what level should it end up? The level is the depth of the color — 1 is black, 10 is the lightest blonde. The difference between the two is the number of levels of lift (going lighter) or deposit (going darker). The calculator simply subtracts one from the other and then applies a few colorist rules of thumb.

levels of lift = target level − current level
sessions       = lift ÷ levels per session, rounded up

Deposit, color or lightener

If the target is the same level or darker, nothing needs to be lifted and a deposit-only color does the job. If the target is lighter, it depends on your hair history. On hair that has never been colored, permanent color can lift natural pigment by about 3 levels, so small lifts need no bleach. Anything more needs lightener. On previously colored hair the answer is always lightener or a color remover, because color does not lift color.

How sessions are estimated

The tool caps one lightening session at 4 levels on hair that has never been colored, 3 on previously colored hair and 2 on relaxed hair, and rounds up. These are planning numbers that colorists commonly work with, not measurements: coarse, dark or heavily dyed hair can take more visits, and a colorist may stop early if the strand test shows the hair has had enough.

The warm tone underneath

Natural hair color is a mix of dark and warm pigment. Lightening removes the dark pigment faster, so warmth is exposed in a predictable order: red at the darkest levels, then red-orange, orange, gold, yellow and pale yellow. That is why lifted hair looks brassy before it is toned. The result names the warmth at your target level and the color that sits opposite it on the color wheel — the toner family that neutralizes it. The hair toner color guide goes into the product type and how often to use it.

Relaxed hair

Relaxed hair has already lost part of its internal strength, and the damage is greatest toward the ends. Lightening on top of that is where most serious breakage happens, so the chart flags any lift on relaxed hair as high risk and plans it in smaller steps.

What the chart cannot tell you

It cannot see your hair. Screen swatches are approximations, box dye and henna behave differently from salon color, and porosity changes how fast hair lifts. It does not give developer strengths or processing times — for mixing amounts see the developer mixing calculator, and for anything involving lightener book a consultation, with a patch test and a strand test first.