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Writer's pictureNippon Paint Professional

Paint Calculator - Estimate How Much Paint You'll Need

Are you planning to paint a room in your house? Whether you’re a first-time painter or a seasoned professional, you know that one of the most important steps in any painting job is choosing the right amount of paint. Find out the ideal paint amount for your walls.

Overbuying paint can be a waste of money, while underbuying can leave you with an unfinished project. Our paint calculator will help take the guesswork out of choosing how much paint you need for your next paintwork.

Just enter the dimensions of the room you’re painting, along with the number of doors and windows, and this calculator will tell you how many gallons of paint to buy. We’ll even provide a breakdown of how much each gallon will cover so you can plan accordingly.

Calculations assume 2-coats of paint & are estimated figures only. Precise paint needs will vary according to many factors, including application methods. Once you know how much paint you need, the rest is easy! Just choose your favourite colour and get started on your next painting project.



Nippon Paint Calculator is a great way to calculate the amount of paint you need for your project. Simply enter the dimensions of the room, the number of doors and windows, and the ceiling height, and the calculator will do the rest.


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