Concrete volume
Estimate rectangular or cylindrical concrete volumes, bag quantities and entered delivery costs. Drag the graph handles to change inputs and explore the result.
Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
Calculations run in your browser. Inputs are not saved or sent to analytics.
How it works
- Net volume = (×× / πײ×/4) × ; Volume including allowance = Net volume × (1+/100)
- Worked example: 3 × 2 × 0.1 = 0.6 m³; 0.6 × 1.1 = 0.66 m³; π×0.3²×1/4 ≈ 0.070685835 m³
- Supported input limits: : 1e-12 ≤ x ≤ 1,000,000,000,000; : 1e-12 ≤ x ≤ 1,000,000,000,000; : 1e-12 ≤ x ≤ 1,000,000,000,000; : 1e-12 ≤ x ≤ 1,000,000,000,000; : 1 ≤ x ≤ 100,000; : 0 ≤ x ≤ 1,000; : 0 ≤ x ≤ 1,000,000,000,000; : 0 ≤ x ≤ 1,000,000,000,000
Input and formula key
Your result
Complete the inputs to see your result.
Assumptions and limitations
Dimensions describe simple rectangular or cylindrical volumes. Bag yield and unit price use m³; yield must come from your product specification. The quantity estimate does not design foundations, reinforcement, strength or load-bearing capacity.
Sources
- NIST — conversion factor conventions Sources reviewed: 2026-10-06
- NIST — conversion factor table B.8 Sources reviewed: 2026-10-06
- OpenStax — rectangle areas and dimensional measures Sources reviewed: 2026-10-06
- OpenStax — circle area and circumference Sources reviewed: 2026-10-06
