Spray Paint Calculator — Cans Needed
Estimate spray paint cans needed based on surface area and coverage per can.
How We Calculate This
The calculator multiplies your surface dimensions to get the total area, then multiplies by the number of coats.
Coverage per can is based on the surface type: smooth surfaces get the most coverage (~2 m² per 400ml can), rough surfaces the least (~1.2 m²).
The can coverage is scaled if your can size differs from the standard 400ml.
Frequently Asked Questions
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Last updated: 2025-02-20
All calculations are estimates. Always verify quantities before purchasing materials.