Construction Calculators
Free construction calculators for professionals. Estimate with precision.
Concrete Calculator
Calculate concrete volume and materials needed for your construction project
Ready to automate your material takeoffs?
Our QuickBidAI tool automatically detects and measures concrete areas, volumes, and reinforcement from your plans, saving hours on manual calculations.
How to Use the Concrete Calculator
1. Select your shape (rectangular or circular) 2. Enter the dimensions in feet 3. For rectangular: input length, width, and depth 4. For circular: input radius and depth 5. Click Calculate to get volumes and material requirements
What This Calculator Provides
- Total concrete volume needed
- Number of concrete bags required
- Sand and gravel quantities
- Water requirements
- Automatic unit conversion (metric/imperial)
Tips for Accurate Concrete Estimation
- Add 10% extra for wastage and variations
- Consider site conditions and access
- Check local concrete mix requirements
- Account for reinforcement displacement
- Verify all measurements before ordering