What is a bill of quantities?

A BOQ lists every measurable item of work - concrete m³, brickwork m², paint m² - with quantity and rate, then sums to a project total. It is the standard basis for tenders and progress payments.

In what order are factors applied?

Wastage, overhead, contingency, profit and tax each apply to the running total, in that order - matching typical estimate sheets.

Can I export the sheet?

Yes - use Download CSV to get the items, steps and totals as a spreadsheet-ready file.

Construction Quantity Calculator - BOQ Sheet & Estimate

List items with quantities and rates, then apply wastage, overhead, contingency, profit and tax.

Inputs

Results

Enter your values - results update instantly.

How This Was Calculated

Assumptions

Recent Calculations

Take this result into your project

You are inside AiLoveKit Build - save the result straight into a project BOQ, or keep estimating with the other construction calculators.

Open your projects

A Mini BOQ in Your Browser

Between a back-of-envelope total and a full tender document sits the working estimate: items, quantities, rates, factors. AiLoveKit's construction quantity calculator is exactly that sheet - add rows for each work item, watch the subtotal build, then apply wastage, overhead, contingency, profit and tax in order.

Typical Workflow

Take off quantities - use the concrete, brick and plaster calculators for each item.
Apply your rates - from supplier and labor quotes.
Layer the factors - and export the sheet as CSV.

Need projects, revisions and printable estimate books? Take the same data into your Build projects.