Cement Concrete Calculator – Civil Construction Guide

Select Concrete Element Type

🟫

Slab / Floor

▬

Beam

🟧

Column

⬛

Footing

🪜

Staircase

🔵

Circular

📐

Trapezoidal

🛣️

Road / Path

Concrete Mix Ratio (Cement : Sand : Aggregate)

M20 — 1:1.5:3

M15 — 1:2:4

M10 — 1:3:6

M25 — 1:1:2

M7.5 — 1:4:8

Custom

Input Unit

Cement Bag Size

Cement Rate (per bag)

PKR

Sand Rate (per CFT)

PKR

Aggregate Rate (per CFT)

PKR

Labour Rate (per m³)

PKR

Concrete Volume Summary

📦

—

Wet Volume (m³)

🔥

—

Dry Volume (m³)

📐

—

Volume (CFT)

💰

—

Material Cost (PKR)

👷

—

Labour Cost (PKR)

🏷️

—

Grand Total (PKR)

Material Quantities Required

🪨

Cement

—

Bags Required

—

Kg Required

—

m³ Volume

—

Cost (PKR)

🏖️

Sand (Fine)

—

CFT Required

—

Kg Required

—

Ton Required

—

Cost (PKR)

🪨

Aggregate (Coarse)

—

CFT Required

—

Kg Required

—

Ton Required

—

Cost (PKR)

Mix Proportion Breakdown

Step-by-Step Calculation

📐 Formula Used

—

Description	Value

📊 Concrete Mix Grade Reference

Grade	Mix Ratio	Use Case	Strength (N/mm²)
M5	1:5:10	Lean Concrete / PCC under footing	5
M7.5	1:4:8	PCC, Levelling Courses	7.5
M10	1:3:6	Non-structural, Blinding Concrete	10
M15	1:2:4	Slabs, Footings, Normal RCC	15
M20	1:1.5:3	Beams, Columns, High-Strength RCC	20
M25	1:1:2	Bridges, Heavy Structures	25
M30+	Design Mix	High-rise Buildings, Special Structures	30+

💡 Note: Dry Volume = Wet Volume × 1.54 (bulking factor). 1 bag cement = 50 kg = 1.25 CFT. Sand density ≈ 1600 kg/m³. Aggregate density ≈ 1500 kg/m³. Always add 5–10% wastage for site conditions.