Wood Moisture Content Calculator

Inputs

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Weight of the wood sample before oven drying or before target conditioning.
oz
Weight after drying to constant mass. It must be less than or equal to the current sample weight.
oz
Desired moisture content for conditioning or drying.
% MC
Current weight of a board stack, slab, rough blank set or other batch assumed to have the same moisture content as the sample.
lb

Results

Default result
Edit inputs
Moisture content(MC)
13.64% MC
Caution

oven-dry basis

Also computed

MC above target(dMC)Out of tol.5.636% MC

sample is wetter than the target

Water in sample(W_water)0.4233oz

Oven-dry wood mass(W_od)3.104oz

Target sample weight(W_target)Out of tol.3.352oz

sample weight at target MC

Sample water to remove(dW_sample)Out of tol.0.175oz

positive means water to remove

Batch dry wood mass(W_batch_od)48.5lb

Wood moisture content sample composition previewWood moisture sample previewDry wood mass stays fixed; water mass changes as the sample dries or gains moisture.Current sample13.6% MCTarget sampletarget weight 95.0 gSolid fill = oven-dry wood mass. Light fill = water in the sample.
Method notes 3 notes
  • Moisture content uses oven-dry basis: MC% = (current weight - oven-dry weight) / oven-dry weight x 100.
  • Target weight = oven-dry weight x (1 + target MC / 100). The batch estimate assumes the batch has the same moisture content as the sample.
  • This is a measurement and conditioning calculator, not a kiln schedule, moisture-meter correction table or species equilibrium-moisture model.

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