# Concrete Block Calculator

Estimate facing blocks with adjustable block dimensions.

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

Category: Construction

Blocks cover a wall by their visible face, so width and height matter more than a guess based on floor area.

Measure the wall, subtract openings and enter the block dimensions you intend to buy. Keep cell filling and mortar as separate material requirements.

## 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
* Actual length (in). Allowed range: 0.1 to 100
* Actual height (in). Allowed range: 0.1 to 100
* Joint width (in). Allowed range: 0 to 3
* Ordering allowance (%). Allowed range: 0 to 100. Added once to the measured requirement.
* Price per block (PKR / block). Allowed range: 0 to 1000000000. Optional. Enter your own supplier quote.
* Opening
* Width. Allowed range: 0.001 to 100000
* Height. Allowed range: 0.001 to 100000
* Quantity. Allowed range: 1 to 1000

## How to use

* Choose measurement unit. Enter wall length and wall height.

* Enter actual length, actual height and joint width.

* Enter ordering allowance and price per block.

* Add the entries in doors and windows to deduct as separate rows. Include opening, width, height and quantity for each row.

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


## Why use this tool

Adjustable block sizes let you compare available products against the same wall area before committing to an order.


## Before relying on the result

Counts blocks by face area. Cell filling and mortar are separate requirements.


## Tool limitations

Counts blocks by face area. Cell filling and mortar are separate requirements.

## Questions

### Is this also a concrete filling estimate?

No. Hollow cells, reinforcement and filling concrete require separate dimensions and specifications. The block count alone cannot supply those quantities.

### What should I check before using Concrete Block Calculator?

Check Measurement unit, Wall length, Wall height and Actual length. 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.