Dehumidifier Calculator

Calculate the right dehumidifier size for your space based on room conditions and moisture levels.

Room Size

Recommended Capacity
--
pints per day
Room Area
--
sq ft
Room Volume
--
cu ft
Moisture to Remove
--
grains/lb difference
Liters per Day
--
Suggested Unit Size
--

Dehumidifier Sizing Guide

Dehumidifier capacity is rated in pints of water removed per day. Sizing depends on room size, dampness level, and desired humidity.

  • Moderate: Space feels damp and musty only in humid weather
  • Damp: Always feels damp, musty odor present
  • Wet: Walls sweat, seepage visible
  • Extremely Wet: Standing water or flooding
  • Target 30-50% RH for comfort; below 60% to prevent mold

Related Calculators