Aggregate Calculator
Calculate the coarse aggregate volume and weight needed for a concrete mix.
Estimates only — not professional financial, medical, legal or engineering advice. Read full disclaimer.
Calculating...
Result
Fill in the form and click Calculate to see your result here.
How it's calculated
Dry volume = Wet Volume × Dry Volume Factor. Aggregate volume = (Dry Volume × Aggregate Ratio) ÷ Total Ratio Parts. Aggregate weight = Aggregate Volume × 1550 kg/m³.
Example
Example: Aggregate Calculator
Inputs
- Wet Volume: 1
- Cement Ratio: 1
- Sand Ratio: 2
- Aggregate Ratio: 4
- Dry Volume Factor: 1.54
Outputs
- Aggregate Volume: 0.88
- Aggregate Weight: 1364
- Aggregate Tons: 1.364
This example uses typical sample values. Adjust the inputs above to see how the results change for your own numbers.
About this calculator
The Aggregate Calculator determines the volume, weight and tonnage of coarse aggregate (crushed stone/gravel) required for a concrete mix, based on the mix's wet volume and cement:sand:aggregate ratio.
Frequently Asked Questions
It uses a typical coarse aggregate density of 1550 kg/m³ to convert volume into weight and metric tons.
Aggregate is one part of the cement:sand:aggregate ratio (e.g. the '4' in 1:2:4). A higher aggregate ratio part means a larger share of the dry volume is allocated to aggregate.
Yes, the calculation is based purely on wet volume and mix ratio, so it works for any concrete element - just calculate the volume of your specific element first.
Related Calculators
In this category
Construction CalculatorsFeedback
Was this calculator helpful? Tell us in a sentence.