# Paint Calculator

Estimate paint for rooms, selected walls and ceilings.

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

Category: Construction

Paint coverage comes from the product and the surface, not simply the size of the house.

List the walls or rooms being painted, include ceilings where needed and use the tin's coverage rate. Change coat counts separately from the measured area.

## Inputs and controls

* Measurement unit: Feet; Metres; Inches; Centimetres; Millimetres
* Include ceilings: Yes; No
* Finish coats. Allowed range: 1 to 10
* Coverage per coat (m²/litre). Allowed range: 0.1 to 100
* Container size (litres). Allowed range: 0.01 to 1000
* Ordering allowance (%). Allowed range: 0 to 100. Added once to the measured requirement.
* Price per container (PKR / container). Allowed range: 0 to 1000000000. Optional. Enter your own supplier quote.
* Room
* Length. Allowed range: 0.001 to 100000
* Width. Allowed range: 0.001 to 100000
* Height. Allowed range: 0.001 to 100000
* Long walls. Allowed range: 0 to 2
* Short walls. Allowed range: 0 to 2
* Openings (sq ft). Allowed range: 0 to 10000000

## How to use

* Choose measurement unit and include ceilings.

* Enter finish coats, coverage per coat, container size and ordering allowance.

* Enter price per container.

* Add the entries in rooms and wall selection as separate rows. Include room, length, width, height, long walls, short walls and openings 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

Selected surfaces and product coverage make comparisons useful when you are choosing between different pack sizes or paint systems.


## Before relying on the result

Use coverage from your paint tin or product sheet. Primer is a separate product and is not included.


## Tool limitations

Use coverage from your paint tin or product sheet. Primer is a separate product and is not included.

## Questions

### Is primer included?

No. Estimate primer with its own area, coverage and coat requirements. Do not assume the finishing paint quantity covers a separate primer product.

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

Check Measurement unit, Include ceilings, Finish coats and Coverage per coat. 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.