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Plan Your Paint Project with Our Coverage Calculator
How to Measure Your Space for Better Results
While the calculator provides approximate estimates, your measurements should be as accurate as reasonably possible.
Here’s how to measure:
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Measure wall height and width.
Record the height and width of each wall. -
Calculate total square footage
Multiply height × width for each wall, then add all wall totals together. -
Subtract windows and doors
This small step improves the estimate for smoother, more efficient planning. -
Include ceilings (optional)
If you plan to paint your ceiling, measure the room length × width.
Measurement Checklist
✓ Measure each wall
✓ Add total square footage
✓ Subtract doors & windows
✓ Include ceilings and extra surfaces (if painting)
Once you have your measurements, plug them into our calculator!
How Approximate Is This Calculator?
Paint coverage is affected by many variables. Our calculator is meant to be a helpful starting point only.
Your actual paint needs may differ depending on:
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Drywall condition
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Wood grain absorption
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Low-quality or high-quality paint
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Dark wall colours requiring extra coats
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Primer requirements
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Moisture or mountain climate factors
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