Use this tool to estimate how much paint you’ll need for your project.
How to Use the Paint Calculator
To use this paint calculator, follow these steps:
- Enter the width of the wall (in feet) that you want to paint.
- Enter the height of the wall (in feet) that you want to paint.
- Enter the number of windows on the wall.
- Enter the number of doors on the wall.
- Enter the number of coats of paint you plan to apply.
- Enter the coverage per gallon of the paint you are using (in sq ft).
- Click the “Calculate” button to get the result.
How It Calculates the Results
Here is how the paint calculator performs its calculations:
- Calculates the total area of the wall using width * height.
- Subtracts the area of the windows and doors from the total wall area (assuming standard window area of 15 sq ft and door area of 20 sq ft).
- Multiplies the net area by the number of coats to get the total area to be painted.
- Divides the total area to be painted by the coverage per gallon to get the amount of paint needed in gallons.
Limitations
The calculator assumes that:
- Each window has an approximate area of 15 sq ft.
- Each door has an approximate area of 20 sq ft.
- All calculations are approximations and may not reflect exact requirements due to variations in paint type, wall texture, and other factors.
Use Cases for This Calculator
Calculate Paint Quantity
Enter the dimensions of your walls and the desired number of coats to get an accurate estimate of the paint quantity needed to complete your project. You can easily adjust the values to compare the required amount for different rooms in your home.
Convert Units
Switch effortlessly between imperial and metric units to ensure you’re comfortable with the measurements. You can input feet and inches or meters and centimeters and get immediate results in the unit system of your choice.
Select Paint Coverage
Choose the paint coverage based on the type and brand of paint you’ll be using. Whether it’s a high-quality paint offering excellent coverage or a more budget-friendly option requiring additional coats, you can factor that into your calculations accurately.
Add Doors and Windows
Include the number and dimensions of doors and windows in your room to deduct their square footage from the total wall area. This feature saves you from overestimating paint quantity and helps you get a more precise estimate for your project.
Estimate Paint Cost
Input the price per gallon or liter of paint to calculate the total cost of the paint required for your project. You’ll get a clear idea of the expenses involved, enabling you to plan your budget effectively and avoid any surprises along the way.
Save Calculations
Save your paint calculations for each room or project to refer back to them later. This feature allows you to track your paint usage over time, compare estimates for different areas, and make informed decisions for future painting projects.
Print or Export Results
Print out or export your paint calculations for easy reference while shopping for paint or discussing the project with contractors. Having a physical or digital copy of the estimates ensures you have all the information you need on hand whenever you need it.
Share with Others
Share your paint calculations with family members or friends who are assisting you with the project. This collaborative feature helps everyone involved stay on the same page regarding the paint quantity and cost estimates, fostering better teamwork and planning.
Get Expert Recommendations
Access expert recommendations on paint brands, finishes, and application techniques based on your project details. This guidance can help you make informed decisions, achieve professional-quality results, and ensure the longevity and durability of your paint job.
Mobile-Friendly Design
Use the paint calculator effortlessly on your mobile device while on the go or at the store. The responsive design ensures a seamless user experience across different screen sizes, allowing you to access the tool whenever inspiration strikes or a paint-related question arises.
Other calculators: