Hair Color Formula Scaler
Scale your color formulas instantly. Adjust developer ratios, convert units, and calculate exact top-up batches while preserving proportions. Get the exact measurements you need, every time.
Why Scale Formulas?
Manual calculation is slow and error-prone. One wrong ratio changes your entire result.
Every service is different: client hair density, length, and regrowth vary—but your formula needs to stay consistent.
Switching between grams and ounces adds friction. You need fast, accurate conversions on the chair.
Scale Your Formula
Components
Scale Settings
Questions?
How do I convert between grams and ounces?
1 ounce equals approximately 28.35 grams. This tool automatically converts between units so you don't have to think about it. Just choose your preferred unit and scale.
What's a developer ratio?
A developer ratio describes how much developer (peroxide) to mix with color. Common ratios are 1:1, 1:1.5, and 1:2 (color:developer). This tool uses your ratio to compute the exact developer amount needed for your scaled formula.
When should I use 'match component' mode?
Use match component mode when you're doing a top-up—you want to scale just the original color to match new hair growth, and keep the additive amounts proportional. Pick your color component and the target amount; everything else scales with it.