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First-pass estimate — confirm final quantities against your engineer's design.
Cement
9bags
Sand
15cft
Aggregate
30cft
Water
225litres
Approx. steel
79kg
Indicative cost
₹ 11,180
Live estimate · Prices indicative for Guna district (2026)
Key points
- Applies IS mix ratios by grade (M15…M25).
- Steel % is member-typical, not a substitute for a Bar Bending Schedule.
Formula & how it works
Materials split by IS mix ratio on the dry volume (1.54 × wet).
Steel weight = concrete volume × member steel % × 7850 kg/m³.
Worked example
- 1 m³ slab in M20 (1:1.5:3), 1.0% steel.
- Cement ≈ 8 bags, sand ≈ 15 cft, aggregate ≈ 30 cft, steel ≈ 79 kg.
Expert tips & mistakes to avoid
- Always add a 5–7% wastage buffer — mid-slab shortages cost more than the buffer bags.
- For engineered members (RCC columns/beams), follow the structural drawing over any calculator.
- Order cement in tranches — bags older than 90 days lose strength.
- Confirm the current market rate on WhatsApp before finalising the budget — prices printed here are indicative only.
Frequently asked questions
Is the steel % accurate?
+
It's a design starting point. Use your engineer's Bar Bending Schedule for procurement — that's the authoritative number.
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