// multi-utility computation suite · offline · instant · precise
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sci.wood-moisture-EMC-Henderson Calculator
Calculates wood equilibrium moisture content (EMC) from relative humidity using the Henderson-EMC equation or Hailwood-Horrobin model. Wood at 20 °C and 65% RH has EMC ≈ 12% — furniture made at 12% MC in a conditioned factory will shrink or swell if used at different ambient humidity.
Inputs
Rh Pct
Reference formula or conversion factor shown for context.
T C
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Wood Type
Reference formula or conversion factor shown for context.
Results
equilibrium moisture content EMC (%)
Sample size or count used in the calculation.
EMC with hysteresis (desorption)
Sample size or count used in the calculation.
RH
Reference formula or conversion factor shown for context.