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CalcWolf DIY Estimador de Cantidad de Pintura
DIY

How Many Gallons of Paint?

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

Cálculo

Un galón cubre 350-400 pies² en superficies lisas. Perímetro × altura - puertas (21 pies²) - ventanas (15 pies²) × capas ÷ 350 = galones. Habitación de 14×12, 8 pies, 2 puertas, 3 ventanas: 329 pies² × 2 capas = 658 ÷ 350 = 1.9 galones. Compra 2 + un cuarto extra para retoques.

Capas

1 capa: solo retoques del mismo color. 2 capas: cualquier cambio de color. 3: oscuro a claro o rojos/amarillos. Un imprimador antes de cambios dramáticos ahorra dinero (es más barato que la pintura de acabado).

⚡ CalcWolf Insight

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

Frequently asked questions
¿Cuántos galones para 12×14?
Paredes (2 capas): ~2 galones. Techo: 1 galón. Compra un cuarto extra para retoques futuros.
¿Necesito imprimador?
Sí para: oscuro a claro, manchas, drywall nuevo, cambio de tipo de pintura. Para refrescar el mismo color: las pinturas 2-en-1 funcionan bien.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
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 →
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