Construction Project Budget Calculator

Direct construction costs

Materials ₦

Labour ₦

Plant / equipment / hire ₦

Specialist / subcontract works ₦

Project-wide costs

Preliminaries / site setup ₦

Professional / consultancy fees ₦

External works / utilities ₦

Other project costs ₦

Budget allowances

Contingency

Project floor area optional, m²

Project description

Enter costs on a consistent basis. If a contractor's quotation already includes labour, equipment, preliminaries or overheads, do not enter the same amount again in another category. Taxes, financing costs and land purchase are not automatically added; include them in Other Project Costs only when they belong in your chosen budget scope.

Waiting for calculation

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Enter the project cost components and click Calculate project budget.

—direct construction costs

—project-wide costs

—contingency

—budget per m², if area entered

FINELIB PRICES

Check underlying project prices

Use Finelib Prices to replace assumptions with supported current material and market cost intelligence where available.

Check current construction prices →

FINELIB MATCH

Get contractor / supplier Quotes or Offers

Use the project scope and calculated budget to find suitable construction businesses and suppliers.

Find businesses / Get Quotes or Offers →

Budgeting boundary: This calculator totals the amounts you enter; it does not certify that the budget is sufficient. Construction budgets can change because of design development, quantities, specification, site conditions, inflation, exchange rates, logistics, programme, variations, statutory requirements and procurement method. Maintain a clear scope and update the budget as verified prices and quotations become available.

How the calculation works

Direct costs are materials + labour + plant/equipment + specialist/subcontract works. Project-wide costs are preliminaries + professional fees + external works/utilities + other costs. The selected contingency percentage is applied to the subtotal of all entered categories. The result shows the total planning budget and each category's share. If floor area is entered, the calculator also derives an effective budget per m² for comparison, without treating it as a market rate.

How to Use and Check Your Result

Enter the measurements, quantities, costs and assumptions requested in the calculator above. Use its calculation control and review the displayed result. All figures should be checked against your actual project or operating conditions.

Planning and safety: Confirm measurements, local conditions, material specifications and professional requirements before purchase or construction. Finelib does not certify engineering designs or supplier quotations.

Frequently Asked Questions

What does the Construction Project Budget Calculator estimate?

It estimates planning quantities or costs from the figures you enter. Review the calculator assumptions before using the result.

Can I use this calculator for a project in Nigeria?

Yes. Enter measurements and quotations relevant to your Nigerian location and project.

Does Finelib supply current market prices automatically?

No. Prices and rates should be checked with relevant suppliers; do not assume any illustrative values are live quotations.

Are the results guaranteed to be accurate?

No. The output depends on entered assumptions and is intended for preliminary planning, not professional certification.

How should I handle wastage or losses?

Where the calculator provides a wastage or contingency field, enter an allowance appropriate to the project. Otherwise account for it separately.

Can I use the result to request supplier quotes?

Yes. Use Finelib Match to find suitable businesses and request Quotes or Offers, then verify specifications and providers.

Should a professional review the result?

Yes, when the decision involves structural safety, electrical safety, major equipment, significant expenditure or regulatory requirements.