iSolveTo ← Construction & Engineering
🏗️ Category 09 · Tool 50

Construction Cost Calculator

Estimate project cost from area, unit cost, overrun and contingency allowances.

Free calculatorConstruction & EngineeringReference estimate

Calculator inputs

Area values are converted to square meters for the calculation.
Enter a positive value.
Enter a positive value.
Enter a positive value.
Enter a positive value.

Result

Result
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Important: Choose the unit shown above; do not mix feet, meters, inches or other units within a dimensional set. Estimated cost = area×unit cost×(1+overrun)×(1+contingency). No currency is assumed. This calculator is for general planning/reference only. It does not replace project-specific engineering design, applicable local codes, manufacturer data, site investigation, or qualified professional review.

How to use this calculator

What to enter

Enter or select the following as requested: Area unit; Built-up area; Base cost per area unit; Overrun allowance (%); Contingency (%). Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The property result estimates a cost, income, valuation, return, or affordability measure from the price, rent, financing, expense, and timing assumptions entered. Check whether taxes, insurance, vacancy, repairs, fees, financing costs, and local transaction charges are included.

When to use it

Use this to compare property scenarios or prepare an initial budget. Actual values depend on location, market conditions, contracts, taxes, and financing; verify local figures and professional advice before making a purchase or investment decision.