How Much Paint for a 5x7 Bathroom?
Paint needed
1 gallon
A 5 by 7 bathroom with eight foot walls, one door, one window, two coats.
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How that number is worked out
These are the figures this page was built with and every line the calculator produces from them. Change anything above and all of it moves.
- Room perimeter, add all walls24 ft
- Wall height8 ft
- Doors1
- Windows1
- Coats2
- Coverage per gallon350 sq ft
Paint needed1 gallon
| Gross wall area | 192 sq ft |
|---|---|
| Less doors and windows | -36 sq ft |
| Net wall area | 156 sq ft |
| Area over 2 coats | 312 sq ft |
| Gallons, exact | 0.89 |
| Buy | 1 gallonor 1 five gallon pail |
The material list this produces
| Paint, gallons | 1 |
|---|---|
| Primer, gallons (if bare or color change) | 1 |
| Painter's tape, rolls | 1 |
Coats compared
Coats is the input people get wrong, usually by hoping. Same room, one coat to three.
| Coats | Paint needed |
|---|---|
| 1 coat | 0.5 gallons |
| 2 coats | 1 gallon |
| 3 coats | 1.5 gallons |
What else matters here
One gallon does this room twice over. Twenty four feet of perimeter by eight feet is 192 square feet gross, 156 after the door and window come out, and two coats of that is 312 square feet against 350 in a gallon.
So quantity is not the decision here. The decision is the product, because a bathroom is the one room where the wrong paint fails visibly: flat paint in a room that gets steamed twice a day will not wipe clean and will grow mildew in the corners above the shower.
Satin or semi gloss, and a bathroom specific line if the room has poor ventilation. The extra cost on a single gallon is a few dollars, which is the cheapest decision in the whole job and the one most often got wrong.
What this calculator assumes
- A door is taken as 21 sq ft and a window as 15 sq ft. Deducting them matters on a small room and barely moves a big one.
- 350 sq ft per gallon is the usual figure on a smooth primed wall. Bare drywall, textured walls and deep color changes all drink more, so drop it to 300 if any of those apply.
- Ceilings and trim are not included. Run the ceiling as its own area.
Questions people ask
How much paint for a 5x7 bathroom?
About 0.89 gallons for two coats on eight foot walls, so a single gallon is enough with a little left over.
Does one gallon paint a small bathroom?
Comfortably, two coats. A gallon covers around 350 square feet and this room needs about 312.
What paint finish should a bathroom have?
Satin or semi gloss. Flat paint cannot be wiped and holds mildew in a room that is steamed daily, which is the usual reason a bathroom needs repainting early.
The paint calculator takes any dimensions you like and hands back the same list.