How to use the labour cost calculator
This calculator helps you estimate labour costs from hours per worker, hourly rate and crew size. It is intended for quantity takeoffs, early budgets and checks against a measured schedule. Start with the dimensions or quantities for one clearly defined item of work. Enter values in the units shown beside each field; millimetres and metres are not interchangeable.
Assumes every worker works the same hours at the same rate. Enter a fully burdened rate if you want employment costs included. Overtime, travel, allowances and productivity are separate.
Worked example
Three workers each working eight hours at 30 per hour cost 720, equivalent to 24 person-hours.
Before you order
Compare the result with your drawings and supplier information. Keep the original net quantity separate from allowances, and round purchasing quantities only at the ordering stage. Check whether delivery, labour and related materials belong elsewhere in your estimate. If the drawing or specification changes, update the inputs and record the revised basis instead of reusing an earlier total.
For the concepts behind this calculation, read Rate Build-Up, Unit Rate, Overheads and Profit.
Common questions & estimating checks
What formula does the labour cost calculator use?
Labour cost = hours per worker × hourly rate × workers — all calculations run directly in your browser using the exact inputs entered above.
How do you calculate a worked example?
Three workers each working eight hours at 30 per hour cost 720, equivalent to 24 person-hours.
What should be checked before ordering or pricing?
Verify dimensions against approved drawings, check supplier product yields and pack sizes, and keep net measured quantities separate from wastage or commercial risk allowances.