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Productivity calculator
Construction Cost and Labour Calculator
Estimate crew hours and labour cost from workers, hours per day, days and hourly rate. Add a work quantity to get cost per unit and productivity — with modes for bricklaying, excavation, concrete pouring and general labour.
Read the guide: Construction Cost and Labour Calculator.
Free to use. No registration required.
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How do I calculate total labour hours?
Multiply number of workers × hours worked per day × days on the task. Example: 4 workers × 8 hours × 5 days = 160 labour hours.
How do I calculate total labour cost?
Multiply total labour hours by the hourly labour cost. Using the example above at £25/hour: 160 × 25 = £4,000. Use an all-in rate if you want employer's NI, holiday and overheads included.
What is cost per unit of work?
Divide total labour cost by the quantity completed (bricks, m³ excavated, m³ of concrete, or any other unit). It shows how much labour you spent for each unit of output, useful for comparing gangs or pricing extras.
How is productivity per worker calculated?
Per worker-day = quantity ÷ (workers × days). Per labour-hour = quantity ÷ total labour hours. Both help you check whether a crew is matching expected site outputs for bricklaying, excavation or concrete pours.
Why are there separate modes for bricklaying, excavation and concrete?
The labour maths is the same; the mode changes the work-quantity label and guidance so you enter bricks (or m²), excavated m³ or poured m³ without mixing units. General labour uses a generic unit of work.
Does this include materials and plant?
No; this calculator is for labour time and cost only. Add material and plant separately, or fold those costs into a higher hourly rate if you are approximating an all-in gang rate.