When to use this: the field-conversion you do six times a day – inches to feet, square feet to square yards, cubic yards to bags of concrete, AWG to mm^2 for an international submittal. Auto-converts as you type. Everything is computed in the browser; no values are sent anywhere.

Construction Unit Converter

Pick a category, enter one value in its native unit, and read the equivalent in every other unit in that category.

Length

Inches—
Feet—
Yards—
Meters—
Millimeters—

Area

Square feet—
Square yards—
Square meters—
Acres—

Volume

Cubic feet—
Cubic yards—
Gallons (US)—
Liters—
80 lb concrete bags (approx)—

Lumber (board feet)

Board feet (per piece)—
Total board feet—

Electrical (AWG to mm^2)

Last reviewed: April 2026

Tools we used or recommend for this work: a 30 ft Stanley FatMax tape (or Milwaukee STUD for tougher use), a Bosch GLM-50C laser distance measurer for room takeoffs, and a Stabila level for verifying the dimensions you converted. Links may be affiliate-tagged where the brand has a program.

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