Construction material quantity calculator
Batch quantity worksheet
Estimate asphalt or rectangular concrete quantities from the dimensions and assumptions you enter. Keep geometry, units and allowances visible before carrying the quantity into an estimate.
Use dimensions from the reviewed plans and confirm material-specific assumptions. The result is a quantity estimate, not a material specification or purchasing instruction. Rectangular geometry only. Confirm compacted asphalt density with your supplier; no default density is supplied. CSV quantities round to six decimals; do not use rounded exports for very small quantities.
Method and units
Net volume = length × width × depth after conversion to meters. Quantity with allowance = net volume × (1 + allowance / 100). Cubic yards = cubic meters / 0.9144³. Asphalt metric tonnes = cubic meters × supplied density (kg/m³) / 1,000. US short tons = kilograms / 907.18474.
Use nonoverlapping rectangular zones and dimensions that represent the same physical state. Allowance adds quantity; it does not model compaction. This tool does not choose thickness, mix design or structural specifications.
NIST unit conversion reference