Convert supplied blend parts to component volumes.
How do volume parts become separate component purchases?
Use the matching calculator
Use this decision sequence
- Write the supplied ratio on an explicit volume basis.
- Add all ratio parts to find the denominator.
- Allocate target volume to each component before rounding purchases.
- Convert each component to its own bags without pooling incompatible products.
Keep the quantities distinct
| Quantity or assumption | How to use it |
|---|---|
| Parts by volume | Allocate volume directly. |
| Parts by weight | Need a weight calculation instead. |
| Bags | Depend on each component’s stated bag volume. |
Worked comparison
A supplied 3:1 volume blend totaling 1 m³ gives components of 0.75 m³ and 0.25 m³. With 0.10 m³ bags for each, purchases are 8 and 3 bags. Their purchased volume totals 1.1 m³, and the surplus is not part of the intended recipe.
Check before using the estimate
The tool splits an entered ratio; it does not recommend a soil recipe or assume shrinkage after mixing.
All dimensions, product properties, prices and specifications in this example are illustrative arithmetic inputs. Use the values from your measured plan, selected product data sheet and supplier quote. This guide does not choose construction specifications or certify safety.
Calculation and scope checked 2026-10-04. Methods and scope.
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