Construction Material Unit-Cost Converter
Turn supplier prices quoted per bag, tonne, kilogram, square metre, cubic metre or piece into a comparable cost basis using explicit package and dimensional relationships.
Supplier price conversion
Conversion relationship
Normalized unit cost
How unit-cost conversion works
The quoted price is first converted to a base unit, then recalculated on the requested comparison basis. The base unit depends on the physical relationship entered.
For bag pricing: kilograms represented = bags × kg per bag.
For m² ↔ m³: volume = area × thickness.
Worked example
A $12 bag containing 25 kg has a cost of $0.48/kg and $480/tonne. Those values can then be compared with another supplier quoting directly per tonne.
Where conversions become dangerous
Price conversion is only as valid as the physical relationship. A square-metre price cannot be converted to cubic metres without thickness, and a piece price cannot be converted to area without actual coverage.
What is excluded
Delivery, taxes, unloading, pallet deposits, minimum-order charges, rebates and other commercial terms are not automatically normalized.
Frequently Asked Questions
Can bag prices be converted to tonnes?
Yes when bag mass is known.
Can m² and m³ prices be compared?
Yes only with a defined thickness.
Can piece prices become m² prices?
Yes with pieces-per-square-metre coverage.
Does this include delivery?
No.