Construction Material Calculator
Estimate cement, sand, crush and steel needed for a concrete structure.
About the Construction Material Calculator
If you have ever wanted a fast, reliable Construction Material Calculator that works on your phone without sign-ups or ads getting in the way, this is it — the figures update the moment you type.
Reinforced cement concrete (RCC) is the skeleton of every Pakistani building, and its cost depends on the concrete volume and the steel reinforcement ratio. This Construction Material Calculator estimates the concrete, steel and total cost for slabs, beams, columns and foundations.
The calculation uses the volume of the structural member and standard steel ratios — typically 1–1.5% of concrete volume for slabs and 2–3% for columns and beams — to arrive at the tonnage of steel and bags of cement required.
Steel is quoted per ton in Pakistan and its price swings with the international market, while cement is per bag. This tool converts the structural quantities into both, letting you price the RCC portion of your build accurately.
Structural design should always be checked by a qualified engineer — this calculator gives you the budgeting numbers, not the design. Use it to sanity-check contractor estimates and quantity lists.
For the most accurate outcome from the Construction Material Calculator, keep the editable rates and defaults up to date with current figures before reading the result.
How to estimate RCC cost
- 1
Enter the dimensions of the slab, beam, column or foundation.
- 2
Adjust the steel ratio and current steel/cement prices if needed.
- 3
Read the concrete volume, steel tonnage and total cost, updated live.
Frequently Asked Questions
How much material is in 100 cft of concrete?
Roughly 22 bags of cement, 44 cft sand and 88 cft crush for a 1:2:4 mix, plus about 65 kg of steel at 1% reinforcement.
How much steel is used in a house?
A typical Pakistani house uses 3,000–5,000 kg of steel per 1,000 sq ft of covered area, depending on design. Slabs use less per cubic metre than columns and beams.
How is steel weight calculated?
Steel weight per metre is calculated as diameter² / 162 in kilograms. For example, a 12 mm bar weighs about 0.89 kg per metre. This calculator handles the conversion for you.