Concrete Volume Calculator
Concrete volume is the amount of concrete needed to fill a space, measured in cubic meters (m³). It is calculated by multiplying the length, width, and thickness of the pour. Accurate volume estimates help you order the right amount of concrete and avoid costly overages or shortfalls.
What Is Concrete Volume?
Concrete volume is the amount of concrete needed to fill a space, measured in cubic meters (m³). It is calculated by multiplying the length, width, and thickness of the pour. Accurate volume estimates help you order the right amount of concrete and avoid costly overages or shortfalls.
Example
Formula: Length x Width x Thickness = 6 m x 4 m x 0.15 m = 3.60 m³
Choose units for length, width, and thickness, then pick a result unit (m³).
Tip: Choose your result unit on the right before calculating.
Step-by-step calculation
- Enter length, width, and thickness with units.
- Select the result unit you want (m³).
- Calculate to see the volume and steps in the selected unit.
How this is calculated
Volume is length times width times thickness for slabs, or length times width times depth for trenches and footings. We convert to cubic meters and add 5–10% for waste and over-excavation.
Sources: IS 1200 (Method of Measurement of Building Works).
FAQ
- How do I calculate concrete volume by hand?
- Multiply length x width x thickness. Example: 6 m x 4 m x 0.15 m = 3.6 m³.
- What is the formula for concrete volume?
- Volume = Length x Width x Thickness. All dimensions must be in the same unit.
- Wet volume vs dry volume
- Wet volume is the mixed concrete; dry volume is about 1.54 x wet volume for mixing estimates.
- What units should I use?
- Use meters for dimensions to get m³. Convert cm by dividing by 100.
- Can I use this for a footing or slab?
- Yes. Enter length, width, and thickness for any rectangular concrete pour.