RHCES Quick BOQ & Cost Estimator

Inputs

Add line items: description, unit, qty, unit price. Tool sums totals and lets you export CSV.

Item	Unit	Qty	Rate	Amount

Item

Unit

Qty

Rate

OH&P (%)

VAT (%)

Currency

Results

Subtotal—

OH & Profit—

VAT—

Grand Total—

Items—

About this calculator

This tool builds a quick Bill of Quantities (BOQ): add line items with a unit of measure, quantity and unit rate, and it extends, totals, and applies overhead & profit (OH&P) and VAT markups to produce a grand total, with CSV export. It's meant for quantity surveyors, estimators, contractors and project managers who need a fast preliminary cost estimate — not a substitute for a fully measured, code-compliant BOQ.

Method & Formulas

Line-item amount: Amount = Qty × Rate, where Rate is the all-in unit price (conventionally built up from material + labor + equipment + item overhead, per standard quantity-surveying practice).

Subtotal (direct cost): Subtotal = ΣAmount_i over all line items.

Overhead & Profit: OH&P = Subtotal × OH&P%.

VAT (or equivalent sales tax), applied on cost-plus-markup: VAT = (Subtotal + OH&P) × VAT%.

Grand Total: Grand Total = Subtotal + OH&P + VAT.

This mirrors the conventional cost-estimate build-up used in a construction Program of Work / bid summary: direct costs first, then the contractor's markup, then tax, applied in that order.

Worked Example

Two line items, 15% OH&P and 12% VAT:

Item 1 — Concrete (3000 psi), 10 m³ @ ₱6,500/m³ → Amount = 10 × 6,500 = ₱65,000.

Item 2 — Reinforcing steel, 800 kg @ ₱65/kg → Amount = 800 × 65 = ₱52,000.

Subtotal = 65,000 + 52,000 = ₱117,000.

OH&P at 15%: 117,000 × 0.15 = ₱17,550.

VAT at 12% on (Subtotal + OH&P): (117,000 + 17,550) × 0.12 = 134,550 × 0.12 = ₱16,146.

Grand Total = 117,000 + 17,550 + 16,146 = ₱150,696.

Assumptions & Limitations

Unit rates entered are assumed to already be all-in (material + labor + equipment); this tool does not build up rates from first principles.

Quantities are taken at face value — it does not perform quantity take-off from drawings, so incomplete or incorrect quantities produce an incorrect total.

A single flat OH&P% and VAT% is applied across all items; real estimates may vary markup by item type or apply tax differently by jurisdiction.

Contingency, escalation, mobilization/demobilization and provisional sums are not added automatically — include them as explicit line items if needed.

Verify results against the governing standard method of measurement and a licensed engineer's or quantity surveyor's judgment before submitting a bid or budget.

FAQ

In what order are OH&P and VAT applied?

OH&P is calculated on the direct-cost subtotal first, then VAT is calculated on the subtotal plus OH&P — matching common cost-estimate summary practice. If your project's tax rule differs, adjust the percentages you enter, or apply tax outside the tool.

Can I export the BOQ to a spreadsheet?

Yes — the Export CSV button downloads a CSV file (Item, Unit, Qty, Rate, Amount) that opens directly in Excel, Google Sheets, or any spreadsheet application.

Does this replace a proper measured BOQ?

No — treat it as a fast, itemized preliminary estimate. A bid- or contract-ready BOQ requires formal quantity take-off per the governing method of measurement and a detailed unit-rate build-up analysis.

InputsReset