Home Improvement calculators

Fabric Calculator

Estimate yards of fabric for identical rectangular pieces from bolt width, finished size, seam allowance, quantity and optional vertical pattern repeat.

Epoxy Calculator

Estimate mixed epoxy gallons from floor length, width, dry-film mils, coat count and waste, then split resin and hardener by your product's volume mix ratio.

Drywall Mud Calculator

Estimate ready-mix joint compound gallons and bucket count from 4×8 sheet count or room dimensions, using a planning rate for all tape coats plus waste.

Firewood Calculator

Measure a stacked woodpile and see how much of a 128 cubic foot cord it holds, a fair price at your per-cord rate, and whether the ticket matches the stack.

Electricity Cost Calculator

Work out what an appliance costs to run per day, month or year from its watts or amps, hours of use and your rate, with every state's EIA July 2026 price.

Square Footage Calculator

Calculate the square footage of a room or area from its measurements, with conversions to square meters, square yards, and acres, plus a cost estimate.

Pool Calculator

Find your pool's volume in gallons from its shape and dimensions, or work out how much salt to add to reach a saltwater chlorine generator's target level.