Como usar (3 passos)
- Pick Metric or US units, coats, coverage, and waste allowance.
- Use Room mode for length, width, height, doors/windows, and ceiling; use Area mode to type a known surface.
- Check the live results, set can size if needed, then copy the URL.
A sample room is prefilled so you see results instantly.
Settings
m²/L
Typical interior wall paints cover around 8–12 m² per L.
L
Calculation mode
m
m
m
Door and window areas are subtracted automatically.
m²
Area, paint, and cans refresh as you edit.
Resultados
Area, paint, and cans refresh as you edit.
Per coat area
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All coats total
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Coverage used
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Theoretical paint
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With extra allowance
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Paint can size (optional)
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If your openings or walls differ a lot from this simple model, increase the extra allowance or treat tricky areas as a separate run.
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FAQ
What if my doors or windows are a different size?
This tool subtracts a standard door and window size. If yours differ a lot, adjust the counts or switch to the area mode with your measured surface.
How should I plan for multiple colors or finishes?
This calculator estimates a single paint. Split the area by color/finish, run the calculation for each, and round up cans separately.