Calculate how much paint you need for your walls.
Enter values and click Calculate to see results.
Calculate how much paint you need for your walls.
Calculate how many tiles you need for floors, walls, and backsplashes. Learn about tile layout, waste factors, and grout estimation.
Read full articleThe Paint Calculator uses the following formula:
The calculation is performed automatically when you click the Calculate button, ensuring error-free results every time. Understanding the formula helps you interpret the results more effectively and see exactly how each input affects the final outcome.
Follow these steps to use the Paint Calculator:
Enter the wall area in the provided input field (e.g., 350).
Enter the number of coats in the provided input field (e.g., 2).
Enter the area unit in the provided input field.
Click the "Calculate" button to compute your results.
Review the detailed results, including charts and breakdowns.
Use the "Reset" button to clear all fields and start a new calculation.
Try the "Load Example" button to see a sample calculation with predefined values.
Here is a practical example to help you understand how the Paint Calculator works.
Enter these values into the calculator (or click “Load Example Values”) to see how the formula produces accurate results.
When using the Paint Calculator, be aware of these common mistakes:
Taking a moment to verify your inputs will ensure the most accurate results.
For the best results when using the Paint Calculator, follow these expert tips:
Typically one liter covers about 350 sq ft (33 sq m) for smooth surfaces.
Primer is recommended for new drywall, dark colors, or porous surfaces. One coat is usually sufficient.
Measure the perimeter of the room and multiply by ceiling height. Subtract the area of doors and windows for accurate estimates.
Two coats are standard for even coverage and durability. Dark or drastic color changes may need three coats.
Matte has no shine and hides imperfections well. Gloss is shiny, durable, and easier to clean but highlights wall flaws.
Yes, textured paints cover less area per liter. Smooth emulsion covers more. Quality paints often have better coverage than budget options.
Divide liters by 3.785. A standard paint can in the US is 1 gallon (3.785 L). In many other countries, paint is sold in 1L, 4L, or 10L cans.
Rough surfaces like brick or textured walls require more paint because they have more surface area than smooth walls.