Calculate Percent Moisture of Compost

In this example, you can calculate the moisture content in compost, given three ingredients, their individual moisture contents and their individual weights.

Enter the percentages and weights below and then click on the calculate button to get the result. To solve for less than three ingredients enter zeroes in rows where ingredient is missing.

% H20
Solve for % Moisture:

Here's the Formula:
Ingredient %H20 Weight
a x
b y
c z

% Moisture(H20) = ((a*x) + (b*y) + (c*z)) / (x + y + z)

Back to Moisture Content


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