Inputs
Enter project quantities and rates. Mixed units are supported; results normalize to metric.
Example Data
Use these sample values to test calculations and validate your workflow.
| Scenario | Area | Thickness | Density | Productivity | Waste | Containment | Labor | Equipment | Disposal |
|---|---|---|---|---|---|---|---|---|---|
| Interior beam coating | 120 m² | 3.0 mm | 1100 kg/m³ | 18 m²/hr | 8% | 12% | 22/hr | 15/hr | 90/tonne |
| High access wall coating | 200 m² | 2.0 mm | 950 kg/m³ | 12 m²/hr | 10% | 20% | 28/hr | 22/hr | 120/tonne |
| Light coating touch-up removal | 75 m² | 1.0 mm | 1000 kg/m³ | 25 m²/hr | 5% | 8% | 20/hr | 10/hr | 70/tonne |
Rates are illustrative. Replace with site-specific quotations and measured productivity.
Formula Used
1) Normalize units
- Area: ft² → m² using
m² = ft² / 10.7639 - Thickness: mils → mm using
mm = mils × 0.0254, then mm → m usingm = mm / 1000 - Density: lb/ft³ → kg/m³ using
kg/m³ = lb/ft³ × 16.01846
2) Removal volume
Volume (m³) = Area (m²) × Thickness (m) × (1 + Waste%/100)
3) Waste mass for disposal
Mass (kg) = Volume (m³) × Density (kg/m³)
Mass (t) = Mass (kg) / 1000
4) Time and costs
Hours = (Area (m²) / Productivity (m²/hr)) × (1 + Containment%/100)Labor Cost = Hours × Labor RateEquipment Cost = Hours × Equipment RateConsumables Cost = Area (m²) × Consumables per m²Disposal Cost = Mass (t) × Disposal Rate (per tonne)Hazard Cost = Area (m²) × Hazard Surcharge per m²Subtotal = Sum of all costsOverhead & Profit = Subtotal × (O&P%/100)Total = Subtotal + Overhead & ProfitUnit Cost = Total / Area (m²)
This is an estimating model. Always verify hazardous waste rules, sampling requirements, and disposal classifications before procurement.
How to Use This Calculator
- Measure the coated surface area and choose the correct area unit.
- Enter the average coating thickness. Use spot checks and take an average.
- Set density based on product data or test samples for accuracy.
- Adjust waste factor for overbreak, access losses, and collection method.
- Enter productivity from past work, vendor data, or a pilot test.
- Fill in labor, equipment, consumables, and disposal rates from quotes.
- Add a hazard surcharge only when extra controls are required.
- Press Calculate to see results above the form.
- Use the download buttons to export a CSV or a PDF report.