Cement Concrete Calculator

Select Concrete Element

🟫

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

Concrete Volume

—

Wet Vol (m³)

—

Wet Vol (CFT)

—

Dry Vol (m³)

—

Dry Vol (CFT)

—

Mix Ratio

—

Cement Bags

Material Quantities

🪨

Cement

Bags—

Weight—

Volume—

🏖️

Sand

CFT—

Ton—

m³—

🪨

Aggregate

CFT—

Ton—

m³—

Step-by-Step Calculation

Description	Value

📊 Mix Grade Reference

Grade	Mix (C:S:A)	Use	Strength
M5	1:5:10	Lean concrete	5
M7.5	1:4:8	PCC, levelling	7.5
M10	1:3:6	Blinding	10
M15	1:2:4	Slabs, footings	15
M20	1:1.5:3	Beams, columns	20
M25	1:1:2	Bridges	25

💡 Dry Volume = Wet × 1.54 | 1 Bag = 50 kg = 1.25 CFT | Sand ≈ 1600 kg/m³ | Aggregate ≈ 1500 kg/m³

🧪 Cement Concrete Calculator — Complete Guide

📖 How to Use

❓ FAQs

Q: What is dry volume factor?

Q: Bags per m³ of M20?

🔗 Related