Concrete is a major cost component (20-30% of project).
M20 Concrete Material Requirement (per m³)
Material
Quantity
Cost @
Total
Cement
300 kg (6 bags)
₹400/bag
₹2,400
Sand
0.4 m³
₹1500/m³
₹600
Aggregate
0.8 m³
₹1200/m³
₹960
Cost per m³ (M20)
₹3,960
RCC Slab Calculation (6m × 4m × 150mm, M20):
Volume: 6 × 4 × 0.15 = 3.6 m³
Item
Qty
Unit
Cost
Concrete M20
3.6
m³ × ₹3960
₹14,256
Steel bars
432 kg
@ ₹65
₹28,080
Formwork
24
m² @ ₹150
₹3,600
TOTAL
₹45,936
Cost per m²
₹1,914/m²
Use our free RCC slab cost calculator to estimate your construction cost instantly
RCC Slab Cost Calculator (m²)
Length (m):
Width (m):
Thickness (mm):
Concrete Rate (₹/m³):
Steel Rate (₹/kg):
Formwork Rate (₹/m²):
function calculateSlab() {
let L = parseFloat(document.getElementById(“length”).value);
let B = parseFloat(document.getElementById(“width”).value);
let T = parseFloat(document.getElementById(“thickness”).value) / 1000;
let concreteRate = parseFloat(document.getElementById(“concreteRate”).value);
let steelRate = parseFloat(document.getElementById(“steelRate”).value);
let formworkRate = parseFloat(document.getElementById(“formworkRate”).value);
let volume = L * B * T;
let steel = volume * 120; // kg/m³ assumption
let area = L * B;
let concreteCost = volume * concreteRate;
let steelCost = steel * steelRate;
let formworkCost = area * formworkRate;
let totalCost = concreteCost + steelCost + formworkCost;
let costPerM2 = totalCost / area;
document.getElementById(“result”).innerHTML =
“Total Cost = ₹” + totalCost.toFixed(0) + “ ” +
“Cost per m² = ₹” + costPerM2.toFixed(0);
}
