Dilution Ratio Calculator

Enter any two fields to compute the others. Ratio is Water : Concentrate = r : 1.

Final volume (V)

Dilution ratio (Water : Concentrate = r : 1)

: 1

Concentrate volume (S)

Water volume (W)

Enter any two fields to show derivation.

General dilution concept: total parts = 1 (concentrate) + r (water); hence V = S + W, W = r·S, S = V/(r+1), W = r·V/(r+1).
Unit factors are standard SI/imperial: 1 L = 1000 mL = 1000 cm³; 1 m³ = 1000 L; 1 US gal ≈ 3.785411784 L; 1 UK gal ≈ 4.54609 L; 1 ft³ ≈ 28.316846592 L; 1 in³ ≈ 0.016387064 L.

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