How to use the construction cost per square foot calculator
- Floor area (sq ft): Total constructed floor area.
- Cost per sq ft: Your local project rate per square foot.
- Contingency (%): Allowance for uncertainty and change.
- Select the button and review the result.
Worked example
2,000 sq ft at 180 per sq ft is 360,000 before contingency.
Method and limitations
Area × local cost rate + contingency.
A planning estimate, not a quotation. Scope, design, labor, materials, site, permits, and location strongly affect cost.
Common questions
Why might another result be different?
Inputs, rounding, policies, rates, and assumptions can differ. Compare like-for-like values and use current official information when a rate or rule can change.
Does NidXee save my entries?
No. The calculation runs in your browser. Reloading or closing the page may clear it.