Exterior House Paint & Primer Gallon Estimator

Estimate exterior paint gallons for wood, stucco, vinyl, or brick house exteriors.

Interactive Material & Cost Estimator

Coverage Rate Mode • Gallons

1. Select Project Area Shape

Length (Feet)

Width (Feet)

Waste / Cut / Compaction Buffer

2. Select Package / Unit Size

Price / Unit ($)

Contractor / Bulk ($)

Delivery ($)

Estimated Material Needed 1,200 sq ft (+10% buffer)

Net + Buffer Area 1,320 sq ft 1,200 base sq ft

Coverage Per Package 350 sq ft per unit (gallons)

Total Units / Packages to Buy 4 gallons

Waste Buffer Included +10% included

Estimated Project Material Cost 4 gallons

Retail Package Total $239.92 Before local sales tax

With Delivery / Bulk $239.92 Direct store pickup

Instant pre-calculated material estimates for common US residential project sizes before compaction buffer:

Typical US Project	Area	Depth	Volume	Weight	Store Bags
Medium 2-Story Home Exterior	2,200 sq ft wall	2 Coats	13 Gallons	140 lbs	3 pails (5-gal) + 2 single gallons

Gallons = (Total Wall + Gable Sq Ft × 2 Coats) ÷ 350 sq ft per gallon

Calculates exterior surface area (minus standard door and window deductions) for a standard two-coat paint application.

Rough wood T1-11 siding and porous stucco absorb up to 30% more paint than smooth pre-primed Hardie board fiber cement siding.

Always budget for 2 full coats for long-lasting weather protection and uniform color sheen.