Dilution & Blending Calculator

Calculate the resulting gravity when blending two worts or beers, or when diluting to a target gravity. Perfect for parti-gyle brewing and high-gravity dilution.

Results

Visualization

How It Works

Blending and dilution use the simple principle that gravity points are additive: total points = (SG1 - 1) x 1000 x Volume1 + (SG2 - 1) x 1000 x Volume2. Divide total points by total volume to get the blended gravity. This is essential for parti-gyle brewing (splitting a mash into two beers of different strengths), high-gravity brewing (fermenting concentrated wort then diluting), and blending batches to hit a target. When diluting with plain water, use SG 1.000 for the second volume. Note that this calculation works in gravity points, not Plato, because Plato does not blend linearly.