Construction Calculators

Find area and perimeter for rectangular spaces in square feet.

Estimate concrete volume, weight, and bag counts for slabs, footings, tubes, curbs, and stairs.

Estimate paint needed based on wall area, coats, and coverage rate.

Estimate tile count from room size, tile dimensions, and waste factor.

Convert square inches to square feet instantly.

Estimate soil volume needed for garden or landscaping projects.

Compute tire diameter and circumference from tire specs.

Estimate gravel volume and tonnage for a project area.

Estimate stair count, riser height, and total run from a target rise.

Estimate room cooling capacity from room size and conditions.