Free Construction Calculators & Tools/Manpower Planning Calculator

Manpower Planning Calculator

Calculate labor requirements by trade based on scope and productivity rates. Generates man-day estimates, peak workforce, and resource histograms.

Project Settings
Trade Scope Items
Trade #1

Leave blank to use default: 2.5

Leave blank to use default: 6

Trade #2

Leave blank to use default: 12

Leave blank to use default: 3

Total Man-Days

283

Peak Workforce

9

Duration

34 days

Total Man-Days

283

Peak Workers

9

Avg. Workers

8.3

Trade Breakdown
Concrete Work200 man-days(6 workers × 34 days)
Masonry/Blockwork83.3 man-days(3 workers × 28 days)
Productivity Analysis
Concrete Work2.5 m³/worker/dayQty: 500 m³
Masonry/Blockwork12 m²/worker/dayQty: 1,000 m²

Notes:

  • Man-days = Scope Quantity ÷ Productivity Rate
  • Duration = Man-days ÷ (Crew Size × Shift Factor)
  • Shift factor adjusts for hours: 8h ÷ 8h = 1.00
  • Peak workforce assumes all trades work simultaneously
  • Add overtime or weekend work by increasing shift hours
Save Your Calculation
Get a professional PDF report of this calculation, plus access to templates and additional resources.

ESTIMATION NOTICE

This calculator provides APPROXIMATE QUANTITIES for budgeting and planning purposes.

Please note:

• Results include standard wastage factors but actual waste may vary based on site conditions, workmanship, and material quality.

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