Bathroom Paint Calculator
Bathrooms require moisture-resistant paint that can handle humidity and temperature changes. Our estimates below are based on a standard bathroom layout. Semi-gloss and satin finishes are recommended for their durability and mildew resistance.
Pre-Calculated Paint Estimate
Low
1.0
gal
Likely
1.1
gal
High
1.2
gal
This range covers 188 square feet with 2 coats. The likely estimate is 0.94 gallons before the selected buffer. If you are buying whole gallons, plan on 2.
Use moisture-resistant, mildew-resistant paint. Semi-gloss finish recommended for humidity protection.
View Detailed Breakdown
Based on a 8x6 ft room with 8-ft ceilings, 1 door(s), and 1 window(s). Paint at 400 sq ft/gallon with a 15% buffer.
Before using the preset
Measure this room without the usual shortcuts
The result above is a worked example using the dimensions and openings shown in the breakdown. Use these room-specific checks before treating it as a shopping quantity.
- 1 Measure only the wall sections that will receive paint. Full-height tile and shower surrounds are not deducted by this preset.
- 2 This example deducts one door and one standard window. Add any large mirror or tiled wall as a manual deduction.
- 3 Fix active moisture and ventilation problems before choosing a coating.
Tips for This Room
- Semi-gloss finish is the gold standard for bathrooms - it resists moisture and is easy to wipe clean.
- Use mildew-resistant paint formulated for high-humidity environments.
- Run the exhaust fan for 30 minutes after painting to reduce moisture buildup.
- Consider a moisture-blocking primer, especially for bathrooms without ventilation fans.
Frequently Asked Questions
How much paint do I need for a bathroom?
This 8x6 preset uses about 1.1 gallons for two wall coats after the selected buffer. One gallon is too close for comfort, so add a quart if the product is sold in quarts or buy a second gallon for future touch-ups.
What type of paint is best for bathrooms?
Moisture-resistant paint with a semi-gloss or satin finish is best for bathrooms. These finishes resist mildew growth and are easy to clean. Look for paints labeled "kitchen and bath" for built-in mildew protection.
Do I need special primer for bathroom walls?
A moisture-blocking primer is recommended for bathrooms, especially if there are signs of water damage, mildew, or you are painting over dark colors. PVA primer works well on new drywall in bathrooms.