How many square feet are in a square yard?

Nine. One yard equals three feet, so one square yard equals three by three, or nine square feet.

How do I convert linear feet to board feet?

Multiply linear feet by the nominal width in inches and the nominal thickness in inches, then divide by 12. A 12 ft long two-by-four is 12 times 4 times 2 divided by 12, or 8 board feet.

1000 pounds-force. Structural drawings often list loads in kips to keep numbers compact. 1 kip equals 4.448 kilonewtons.

Construction Unit Converter - Project Ouroboros

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

Value

Unit

Inches—

Feet—

Yards—

Meters—

Millimeters—

Area

Value

Unit

Square feet—

Square yards—

Square meters—

Acres—

Volume

Value

Unit

Cubic feet—

Cubic yards—

Gallons (US)—

Liters—

80 lb concrete bags (approx)—

Lumber (board feet)

Length (ft)

Width (in)

Thickness (in)

Pieces

Board feet (per piece)—

Total board feet—

Electrical (AWG to mm^2)

AWG size

Cross-sectional area

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.