Calculate paint and tint quantities from your custom mixing formula.
Popular Mixing Presets
These are sample / demonstration formulas for illustration only — they are not manufacturer-approved paint formulas and do not correspond to any specific paint brand.
Paint Mixing Calculator
This paint mixing calculator helps paint shops, painters, contractors, interior designers, and homeowners work out the exact quantity of base paint and each tint color needed, based on a mixing formula you define as percentages.
How to Calculate Paint Mixing Ratios
Each tint's quantity is calculated as: component quantity = total required quantity × percentage / 100. For example, if the total paint is 20 L and the blue tint is 5%, then 20 × 5 / 100 = 1 L of blue tint is needed.
How to Use the Paint Mixing Calculator
Enter the total paint quantity you need and choose Litres, Millilitres, or Gallons.
Select or name your base paint.
Add each tint/color with its percentage of the total formula — the percentages must add up to exactly 100%.
Click "Calculate Mix" to see exactly how much of each color to use, and optionally enable cost calculation.
Paint Mixing Formula Example
For 20 litres of paint mixed as White 90%, Blue 5%, Black 5%: White = 18 L, Blue = 1 L, Black = 1 L, for a total of 20 L.
Important Note About Actual Paint Colors
The digital color preview is only an approximate RGB/HEX blend calculated from the colors and percentages you enter — it is not a substitute for an actual physical paint formula. Real paint colors depend on the paint brand, base paint, pigments used, and the tinting machine/system, and mix subtractively rather than as a simple weighted average of light. Always confirm the exact mixing formula with your paint manufacturer or tinting system before mixing physical paint.
Frequently Asked Questions
It is a tool that calculates how much of each paint, tint, hardener, or thinner you need for a given total volume, based on a mixing formula expressed as percentages.
Multiply the total quantity by each component's percentage and divide by 100 — for example, 20 L × 5% ÷ 100 = 1 L.
Enter 10 in "Required Quantity" with Litres selected, enter your tint percentages, and click "Calculate Mix" to see the exact amount of each tint.
Yes — enter any total quantity, including 20 litres, or use the quick quantity buttons for common amounts.
No. It calculates quantities based on the percentages you provide, and shows an approximate digital color preview only — actual physical paint color depends on the paint brand, base, pigments, and tinting system.
Yes, you can pick a color for each tint row, which is used to generate the approximate digital color preview — this is a visual approximation, not an exact paint formula.
Yes, enable the Paint Cost Calculator, enter a price per litre for the base paint and each tint, and the total cost and cost per litre will be calculated automatically.
Yes, after calculating a result you can save it with a name; your last 10 saved formulas are kept on this device so you can reload them later.
Yes, click "Print" for a clean, print-friendly result, or "Download PDF" for a saved report.
Yes, it's completely free and requires no sign-up.