Use this construction calculation for preliminary quantity, geometry, material, load, or coverage planning when dimensions and units have been measured consistently.

Bar diameter (mm)

Required number input.

Steel density (kg/m³)

Required number input.

Compute steel reinforcing-bar mass per foot from nominal circular diameter and supplied steel density. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Mass per foot (kg/ft)

The resulting mass per foot returned as a number.

• A quantity estimate or simplified engineering formula is not a building-code check, stamped design, manufacturer approval, or site inspection. Material properties, tolerances, waste, moisture, workmanship, loads, local conditions, and code requirements can change the result.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Verify dimensions on site, use current product data and local code requirements, include an explicit waste or safety allowance where appropriate, and obtain qualified structural, electrical, plumbing, or geotechnical review when required.

• Rebar Total Weight

  Calculate total reinforcing-bar mass from combined cut length and mass per unit length.

• Brick Wall Weight

  Estimate brick-wall mass from brick count and mortar volume using the supplied material masses and density.

• Concrete Weight

  Calculate concrete mass from placed volume and supplied fresh-concrete density; mix density varies with aggregate and air content.