OhMyCalc

Construction Cost Calculator

Estimate total construction cost from area, unit rate, contingency, and overhead percentages.

How to Use the Construction Cost Calculator

  1. Enter building area in m².
  2. Enter cost per square metre.
  3. Set contingency and overhead percentages.
  4. Review total estimated project cost.

Casos de Uso

Fórmula

Total = Area × Rate × (1 + Contingency% + Overhead%)

Preguntas Frecuentes

How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.