WHAT THIS TOOL DOES

This mixing ratio calculator works out the amount of A and B needed for a two-part mixture.

Use it for ratios like 1:4, 2:1, 3:2 or 5:1.

Enter a total amount, or one known part, then calculate the other part and total.

HOW TO USE IT

Page 1 sets the A:B ratio, unit and rounding.

Page 2 chooses whether you know total, A, or B.

Press SOLVE to see calculated A, B and total on Page 3.

MIXING RATIO FORMULAS

If total is known: total parts = A + B.

One part = total ÷ total parts.

A amount = A ratio × one part.

B amount = B ratio × one part.

KNOWN PART FORMULAS

If A is known: one part = known A ÷ A ratio.

Then B = B ratio × one part.

If B is known: one part = known B ÷ B ratio.

Total = calculated A + calculated B.

WORKED EXAMPLE

For a 1:4 ratio and a 500ml total, total parts = 1 + 4 = 5.

One part = 500 ÷ 5 = 100ml.

A = 1 × 100ml = 100ml.

B = 4 × 100ml = 400ml.

COMMON SEARCHES

mixing ratio calculator, ratio mix calculator, 1 to 4 mix calculator, dilution calculator and two part mix calculator.

Common uses include cleaning solution, squash, paint, resin, concrete mixes, fertiliser and recipe ratios.

Always follow product safety labels for chemicals, resins, paints and concentrates.

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