Calculator category

Home & Basement

Estimate heating, cooling, dehumidification, sump pump, water softener, and wall-assembly performance for common home planning decisions.

10 calculators

Pick the calculator closest to the decision you are trying to make.

Estimate dehumidifier capacity for basements, crawlspaces, and damp rooms from room dimensions and dampness level.

Estimate heater BTU needs for a garage, shop, or workspace.

Estimate sump pump flow requirement based on water inflow and lift height.

Estimate water softener grain capacity from household size and water hardness.

Estimate mini split BTU size from room dimensions, ceiling height, and room conditions.

Estimate aquarium volume from inside length, width, and water height.

Estimate full cords of stacked firewood from pile dimensions.

Estimate insulation packages from area dimensions, package coverage, and waste allowance.

Estimate whole-wall R-value including wall dimensions, cavity insulation, wood studs, drywall, sheathing, and continuous foam insulation.

Estimate bathroom exhaust fan CFM from room size and air-change target.