Sand and Cement Calculator for Brickwork Walls

Calculation Formulas:

\[ \text{Cement (kg)} = \left[\text{Mortar volume (m³)} \times 1.33 \times \left(\frac{1}{1 + \text{ratio}}\right)\right] \times 1440 \] \[ \text{Sand (kg)} = \left[\text{Mortar volume (m³)} \times 1.33 \times \left(\frac{\text{ratio}}{1 + \text{ratio}}\right)\right] \times 1600 \]

Cement Required:

Sand Required:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What Is This Calculator For?

This calculator determines the quantities of cement and sand needed for brickwork walls based on the mortar volume and cement-to-sand ratio. It's essential for construction planning and material estimation.

2. How Does the Calculator Work?

The calculator uses these formulas:

Where:

1.33 — Standard dry mortar volume factor
1440 — Density of cement (kg/m³)
1600 — Density of sand (kg/m³)
ratio — Cement:sand proportion (e.g., 1:4 ratio means 4 parts sand to 1 part cement)

3. Importance of Accurate Calculations

Details: Proper material estimation ensures structural integrity, cost efficiency, and prevents wastage or shortages during construction.

4. Using the Calculator

Tips: Enter mortar volume in cubic meters and the cement-to-sand ratio (for 1:4 ratio, enter 4). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical cement:sand ratio for brickwork?
A: Common ratios range from 1:3 to 1:6 depending on the application and brick type.

Q2: How do I estimate mortar volume?
A: Mortar volume ≈ Wall volume × 0.3 (30% of wall volume for standard bricks with 10mm joints).

Q3: Why multiply by 1.33 in the formula?
A: This accounts for the dry volume of mortar being about 33% more than the wet volume due to voids.

Q4: What if I need to calculate in bags?
A: Standard cement bags are 50kg. Divide cement quantity by 50 to get number of bags.

Q5: Does this account for wastage?
A: No, add 5-10% extra to calculated quantities to account for wastage and spillage.