Bathroom Paint Calculator
A standard 8×10 bathroom usually needs about 1 gallon for two wall coats; a small 5×8 powder room often needs about 0.5 gallons (or a quart). Use satin or semi-gloss for moisture — then confirm with your exact dimensions below.
~0.5 gallons
Typical powder room or half bath. One quart is usually enough for 2 coats.
~1 gallon
Full bath with tub or shower. About 1 gallon covers walls with 2 coats.
- •Use moisture-resistant paint: Semi-gloss or satin finish prevents mold and mildew
- •Primer is essential: Use bathroom-specific primer to seal surfaces
- •Ceiling paint: Use bathroom ceiling paint with anti-mildew properties
- •Ventilation: Ensure proper ventilation during and after painting
Bathroom Painting Guide
Bathrooms require special paint formulations due to high moisture and humidity. Standard wall paint will peel and develop mold over time. Use semi-gloss or satin finish paint specifically designed for bathrooms.
Best Paint Types for Bathrooms
- Semi-gloss: Best for high-moisture areas, easy to clean, resistant to mold
- Satin: Good balance of durability and appearance, less shiny than semi-gloss
- Avoid flat/matte: These absorb moisture and stain easily
Cost Estimate
Bathroom-specific paint costs $35-55 per gallon. A small bathroom needs about half a gallon ($20-30), while a full bathroom requires 1 gallon ($35-55). Add primer, tape, and supplies for an additional $25-40.
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FAQ
How much paint for a bathroom?
A typical full bath (about 8×10) needs roughly 1 gallon for two wall coats. A powder room (5×8) often needs about half a gallon or a quart. Subtract for large mirrors and tile; add if you are painting the ceiling.
What paint finish should I use in a bathroom?
Satin or semi-gloss. Both resist moisture and wipe clean better than flat or eggshell. Avoid flat paint in wet rooms — it absorbs humidity and stains easily.
Do I need primer in a bathroom?
Prime new drywall, patched areas, stains, or glossy existing paint. On sound latex walls getting a similar color, spot-prime repairs and use a quality moisture-resistant topcoat.
Bathroom related resources
More guides
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