Extra volume allowance
Mistake: Entering 0.5 when you mean 50%.
Fix: Enter 50 for 50%; 0.5 represents 0.5%.
Calculators · Free
Concrete volume batch worksheet
Sum slabs and cylindrical footings for a concrete crew’s order.
01Enter your values
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02Concrete volume batch worksheet
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How it works
Sum slabs and cylindrical footings for a concrete crew’s order.
V = Σ(LWHn) + Σ(π(D²−d²)Hn/4); Vₜ = V(1+a/100)
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Discovery source
Your data stays yours
Inputs are processed on this page and are never sent to a server.
About this tool
Use tool ↑Sum slabs and cylindrical footings for a concrete crew’s order.
Add separate measured sections. For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid). Multiply by depth and count, then add your own allowance. Sections must not overlap.
- Enter your values
- Concrete sections
- Extra volume allowance
- Calculation method
V = Σ(LWHn) + Σ(π(D²−d²)Hn/4); Vₜ = V(1+a/100)
- Example scenario · Result
Planned volume: 1.32 m³ Net geometric volume: 1.2 m³ Added allowance: 0.12 m³
Calculation method
- Add separate measured sections.
- For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid).
- Multiply by depth and count, then add your own allowance.
- Sections must not overlap.
V = Σ(LWHn) + Σ(π(D²−d²)Hn/4); Vₜ = V(1+a/100)
Concrete volume batch worksheet
- Concrete sections
- Shape: Rectangular slab, Length / outer diameter: 4, Width / inner diameter: 3, Depth: 0.1, Quantity: 1
- Extra volume allowance
- 10 %
Result
Planned volume: 1.32 m³ Net geometric volume: 1.2 m³ Added allowance: 0.12 m³
Frequently asked questions
Does this specify a foundation?
No. It estimates volume only; reinforcement, loads, soil and structural design are outside scope.
Where does my data go?
Calculations run on your device. Form inputs are not sent to a server.
Terms and definitions
Enter your values
- Measurement system
The initial choice follows your browser region. Your choice is remembered on this device. Gallons are US gallons. Switching units keeps your numbers unchanged and interprets them in the new unit.
Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
- Concrete sections
Add separate measured sections.
Enter one item per row; each column describes that item.
- Shape
Choose the mode that matches the data you entered.
Options: Rectangular slab · Cylinder / ring
- Length / outer diameter
For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid).
Enter a numerical value for this quantity. Use the unit shown beside this field. m / ft
Minimum: 0.0001 · Maximum: 100000 m
- Width / inner diameter
For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid).
Enter a numerical value for this quantity. Use the unit shown beside this field. m / ft
Minimum: 0 · Maximum: 100000 m
- Depth
Multiply by depth and count, then add your own allowance.
Enter a numerical value for this quantity. Use the unit shown beside this field. m / ft
Minimum: 0.0001 · Maximum: 100000 m
- Quantity
Enter a whole number; fractional counts are not valid.
Minimum: 1 · Maximum: 1000000
- Extra volume allowance
Multiply by depth and count, then add your own allowance.
Enter a percentage, not its decimal fraction: 50 means 50%. Use the unit shown beside this field. %
Minimum: 0 · Maximum: 100 %
Result
- Result
Add separate measured sections. For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid). Multiply by depth and count, then add your own allowance. Sections must not overlap.
Calculated from your entries using the method below.
- Planned volume
Add separate measured sections. For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid). Multiply by depth and count, then add your own allowance. Sections must not overlap.
Calculated from your entries using the method below.
- Net geometric volume
Add separate measured sections. For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid). Multiply by depth and count, then add your own allowance. Sections must not overlap.
Calculated from your entries using the method below.
- Added allowance
Multiply by depth and count, then add your own allowance.
Calculated from your entries using the method below.
- Value
Add separate measured sections. For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid). Multiply by depth and count, then add your own allowance. Sections must not overlap.
Calculated from your entries using the method below.
- Unit
Add separate measured sections. For slabs enter length and width; for cylinders enter outer and inner diameters (zero inner diameter means solid). Multiply by depth and count, then add your own allowance. Sections must not overlap.
Calculated from your entries using the method below.
Common mistakes and quick fixes
Length / outer diameter · Width / inner diameter · Depth
Mistake: Changing units and assuming the entered numbers were converted.
Fix: Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
Does this specify a foundation?
Mistake: Treating a result as valid outside the described scope.
Fix: No. It estimates volume only; reinforcement, loads, soil and structural design are outside scope.
Limits and key assumptions
- No. It estimates volume only; reinforcement, loads, soil and structural design are outside scope.
- Sections must not overlap.
- Displayed results may be rounded; rounding does not add measurement precision.