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Dehumidifier Sizing Calculator

Pints/day capacity from area and dampness.

Estimate the dehumidifier capacity in pints per day required for a basement or room, based on its square footage and how damp the space feels.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

ft²

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Pints/day ≈ area_sqft × dampness_factor (10 / 1000 ft² for moderately damp, up to 22 for wet).

In depth

Estimate the dehumidifier capacity in pints per day required for a basement or room, based on its square footage and how damp the space feels.