# Mortar Calculator

Estimate joint mortar and split cement and sand quantities.

[Open this tool](https://whatson.pk/mortar-calculator/)

Category: Construction

Mortar fills the spaces between masonry units. Its consumption changes when brick dimensions, joints or the wall thickness change.

Measure net masonry and use brick sizes that match the delivery. The calculator separates an estimated mortar volume into cement and sand for your selected proportions.

## Inputs and controls

* Measurement unit: Feet; Metres; Inches; Centimetres; Millimetres
* Wall length. Allowed range: 0.001 to 100000
* Wall height. Allowed range: 0.001 to 100000
* Wall thickness (in). Allowed range: 0.01 to 100
* Opening area (sq ft). Allowed range: 0 to 10000000
* Brick length (in). Allowed range: 0.1 to 40
* Brick width (in). Allowed range: 0.1 to 40
* Brick height (in). Allowed range: 0.1 to 40
* Mortar joint (in). Allowed range: 0 to 3
* Sand parts per cement part. Allowed range: 0.001 to 100
* Dry volume factor. Allowed range: 1 to 3
* Cement bag mass (kg). Allowed range: 1 to 1000
* Cement density (kg/m³). Allowed range: 100 to 5000
* Ordering allowance (%). Allowed range: 0 to 100. Added once to the measured requirement.
* Cement bag price (PKR / bag). Allowed range: 0 to 1000000000. Optional. Enter your own supplier quote.
* Sand price (PKR / cft). Allowed range: 0 to 1000000000. Optional. Enter your own supplier quote.

## How to use

* Choose measurement unit. Enter wall length, wall height, wall thickness and opening area.

* Enter brick length, brick width, brick height and mortar joint.

* Enter sand parts per cement part, dry volume factor, cement bag mass, cement density and ordering allowance.

* Enter cement bag price and sand price.

* Select Calculate estimate. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.


## Why use this tool

The estimate follows the wall and its units, giving you a clearer basis than applying one bag allowance to every room.


## Before relying on the result

Mortar volume is net masonry minus estimated brick solids. Bond and site loss can change consumption.


## Tool limitations

Mortar volume is net masonry minus estimated brick solids. Bond and site loss can change consumption.

## Questions

### Why might site consumption differ?

Bond details, joint variation and handling losses can change the amount used. Compare the first completed section with the estimate before ordering later batches.

### What should I check before using Mortar Calculator?

Check Measurement unit, Wall length, Wall height and Wall thickness. Use the exact units shown beside the controls and replace any example values with your own inputs.

Source page last modified (UTC): 2026-10-01T14:08:57+00:00

This profile describes the tool. It does not execute it or supply a professional certification.