Paint Cost Calculator

Constructing your home or renovating it, we all want the best paint to be used. However, budgets can go high and get you confused on what to choose. With this in mind, we have developed our paint cost calculator that will help you choose the perfect paint for your walls within your budget. With Orientbell Tiles’ Paint Calculator, you can easily reduce the confusion around which paint to select for the walls of your home.Using a paint calculation formula, this house painting cost calculator will provide you with an approximate estimate in a simple and easy to understand manner.

How Do I Calculate How Much Paint I Need?

Orientbell Tiles Paint Work Calculator

Sq. m.

How Is Painting Cost Calculated?

A paint cost calculator is extremely useful for those who wish to calculate the amount of paint required to cover the surface of a particular area, thereby providing an approximate estimate of the amount the project will cost.

The following factors need to be considered while calculating the painting cost:

1. Surface Area

Take a measurement of the surface to be painted. This can be in square metres or square feet, but keep a note of which. This includes all walls, doors, trims, windows, and other surfaces to be painted.

2. Type of Paint

The type of paint you choose will depend upon various factors such as your budget and the surface being painted. Exterior or interior, glossy or matte, textured paint - there are different types of paints available to choose from.

3. Coverage Rate Of Paint

Coverage rate of paint depends on the thickness or viscosity of the paint. Most paint buckets come with instructions printed that will help you determine the coverage rate per litre. This can help you estimate the amount of paint required.

4. Number Of Coats Required

Are you simply refreshing your walls or doing an all out paint job? This will help determine if you need one coat, two coats, or even more. This will further impact the amount of paint required.

5. Price Of The Paint

Paint is priced per litre, and is sold in different sized buckets. The cost per litre varies according to the type of paint and this information can be determined in store or on the manufacturer’s website.

6. Cost Of Labour

The cost of labour can depend on various factors such as your location, the skill of the labourer, do they work hourly/daily or on a project basis, and the complexity of your project. It is best to predetermine this so that there are no surprises in the future.

7. Clean Up

Is the cost of clean up included in the painter’s fee, or do you need to pay extra? Cleaning up after painting is messy and could involve stains on the floors or furniture. Make sure you clear this.

8. Cost Of Equipment

Painting the space involves some basic equipment such as rollers, brushes, tapes and cleaner liquids. The cost of such equipment should be accounted for when budgeting the cost of painting.

Once all this information has been gathered, you can calculate the cost of painting using the following paint calculation formula:

Painting Cost = (Surface Area to Be Covered / Coverage Area of Paint) x Number of Coats Required x Paint Price

Add to this Cost of Labour and Cost of Additional Material (if any)

It is important to note that this is a very basic and straightforward way of estimating the rough cost – the actual costs may differ. It is best to invite quotes from professionals to determine a more accurate cost.

Essentials Of Home Painting: Coverage Area And Coats For Paint, Primer, And Putty


Primer is a substance that is spread over the surface to be painted so that the paint adheres better. A primer is not the final finish, it is a pre finish to prepare the surface for the paint. Similar to paint, 1 litre of primer can cover almost 100 sq. feet of paintable area.


Paint is usually a liquid substance that is used as a final coat on surfaces as a decorative and protective element. On average, 1 litre of paint can cover almost 100 sq. feet of paintable surface.


Putty is a paste prepared to fill in the gaps and minor dents in order to create a level surface. Often, a putty covered surface needs to be coated with a primer before you can paint it. The amount of putty depends on the surface area that is being painted.

Coverage Area

  • Spray-painting a surface can cover more area than using a roller or a brush.
  • To know the exact coverage area of your paint, refer to the manufacturer’s instructions – each paint bucket usually has the coverage area written on it.


A “coat” essentially refers to the layers of paint.

  • One coat refers to a single layer of paint. 1 coat is often enough if you are repainting or covering minor damages.
  • Two coats refer to two layers of paint. While doing a fresh paint job or changing the colour scheme, 2 coats of paints are required for full coverage.


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