DIY

How Many Gallons of Paint?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate paint gallons for any room by dimensions. Doors, windows, and coats included.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Paint Coverage
How Many Coats

Berechnung

1 Liter deckt 6-8 m² (deckend). Umfang × Hoehe - Tueren/Fenster × Anstriche / 7. Schlafzimmer 4×3,5 bei 2,50, 2 Anstriche: ~7 Liter. Suvinil, Caparol, Alpina: fuehrende Marken.

Anstriche

1: Auffrischung gleiche Farbe. 2: Farbwechsel. 3: dunkel zu hell. Grundierung spart Deckfarbe bei starkem Farbwechsel.

⚡ CalcWolf Insight

Buy all paint from the same batch — different batches can have subtle color variations visible on the wall.

Frequently asked questions

12 m² Zimmer?▾

Waende (2 Anstriche): 6-8 Liter. Decke: 2-3 Liter.

Grundierung noetig?▾

Bei: dunkel→hell, Flecken, neuem Putz. Spart langfristig Deckfarbe.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →