Bathroom Painting Cost Calculator

In 2026, painting a bathroom typically costs $200 to $700, with most standard full bathrooms running around $300 to $500. A small half-bath (powder room) might be $150 to $350, a standard full bathroom $300 to $600, and a large or master bath $500 to $900+. The cost depends on the bathroom's size, what you're painting (walls only, walls plus ceiling, or walls, ceiling, and trim), the paint grade (mildew-resistant bathroom paint costs a bit more than standard), the condition of the walls (mildew, moisture damage, or patching needs add prep cost), and extras like painting the vanity, treating mold, or re-caulking. Bathrooms cost more per square foot to paint than larger open rooms because they're small (so the fixed costs of setup and labor are spread over little area) and full of fixtures, the vanity, tile, mirrors, and tight corners that require careful cutting-in and slow the work. Despite the small size, the detail work makes bathroom painting a bit pricey per square foot. Painting is also one of the most cost-effective bathroom refreshes. This calculator lets you adjust the size, scope, paint grade, and condition to estimate your bathroom painting cost. Note that DIY painting can save the labor cost if you're comfortable with the detailed work.

Bathrooms have high humidity and moisture, so the paint you choose matters more than in a dry room — using the right paint prevents peeling, mildew, and premature failure. The key recommendations: Use a moisture-resistant, mildew-resistant paint formulated for bathrooms and high-humidity areas — many brands offer 'bath' or 'kitchen and bath' paints with mildew-resistant additives that inhibit mold and mildew growth and stand up to moisture (this calculator's mildew-resistant grade reflects this). Choose a higher sheen — satin, semi-gloss, or gloss finishes are best for bathrooms because they're more moisture-resistant, easier to wipe clean, and resist mildew better than flat/matte paint; semi-gloss is popular for bathroom walls and trim, and satin for a slightly less shiny look (avoid flat paint in bathrooms, as it absorbs moisture and is hard to clean). Prime first, especially over bare/patched surfaces or if covering stains or mildew (a stain-blocking or mold-resistant primer helps). For the ceiling, a mildew-resistant ceiling paint is wise since bathroom ceilings get the most moisture and are prone to mildew. Ensure good ventilation (exhaust fan) to help the paint last. Quality bathroom paint costs a little more but is well worth it for durability and mildew resistance in a wet environment. This calculator lets you choose standard, mildew-resistant, or premium paint grades; for bathrooms, mildew-resistant (or premium) is recommended.

It's a common surprise that small bathrooms cost more per square foot to paint than large open rooms, but there are good reasons. First, fixed costs spread over less area: any painting job has overhead — setup, moving and protecting fixtures, taping, cleanup, and the painter's minimum charge — and in a tiny bathroom these fixed costs are spread over very few square feet, raising the per-square-foot rate. Second, bathrooms are detail-intensive: they're packed with obstacles to cut around — the vanity, sink, toilet, mirror, medicine cabinet, towel bars, tile, shower/tub, exhaust fan, light fixtures, and outlets — and all this careful cutting-in and edging is slow, precise work compared to rolling large open walls. Third, tight spaces: working in a small, cramped bathroom (squeezing behind the toilet, in corners, over the tub) is awkward and slow. Fourth, multiple surfaces in a small footprint: walls, ceiling, and trim all in a confined space. Fifth, prep needs: bathrooms often need more prep (mildew treatment, moisture damage, caulking) than other rooms. So while the total cost of painting a bathroom is low (it's small), the cost per square foot is high because of the labor-to-area ratio, detail work, and obstacles. This is why the per-square-foot rate in this calculator is higher than for large rooms, and why bathroom painting has a minimum charge.

In most cases, yes — painting the bathroom ceiling along with the walls is a good idea, and bathroom ceilings often need it more than other rooms. Here's why: bathroom ceilings are exposed to the most moisture and steam (from showers and baths), which rises and collects on the ceiling, making them especially prone to mildew, staining, discoloration, and peeling paint — so the ceiling often shows wear and may need repainting even if the walls look fine. Repainting the ceiling with a mildew-resistant ceiling or bath paint refreshes the look and protects against moisture damage. If you're already painting the walls, doing the ceiling at the same time is efficient (the painter is set up, and a fresh ceiling completes the look — a dingy or stained ceiling can undermine freshly painted walls). That said, you can paint walls only if the ceiling is in good shape and you want to save cost, which is a valid choice for budget. If the ceiling shows mildew, water stains, or peeling, definitely include it (and treat any mildew and use a stain-blocking primer first). This calculator lets you choose walls only, walls plus ceiling, or walls, ceiling, and trim, so you can include the ceiling based on its condition and your budget. For a complete refresh in a moisture-prone room, walls plus ceiling is the common, recommended scope.

Addressing mold or mildew before painting is essential — painting over it doesn't kill it or stop it from coming back, and it will grow through and ruin the new paint. The proper steps: First, identify and fix the moisture source if possible (poor ventilation, a leak, etc.), since mildew thrives on moisture and will return if the underlying humidity isn't addressed — make sure the bathroom has a working exhaust fan. Second, clean and kill the mildew: scrub the affected areas with a mildew-killing cleaner or a solution of diluted bleach (or a commercial mold/mildew remover), following safety precautions (ventilation, gloves), to kill the spores and remove the staining; let it dry completely. Third, for stains or persistent areas, apply a stain-blocking, mold-resistant primer, which seals the surface, blocks stains from bleeding through, and provides a clean base. Fourth, then paint with a mildew-resistant bathroom paint that contains additives to inhibit future mildew growth. For minor surface mildew, cleaning, priming, and using mildew-resistant paint usually suffices (this calculator offers a mold/mildew treatment add-on and a heavy-prep condition option). For severe or extensive mold — especially if it's behind walls, involves black mold, or covers a large area — you may need professional mold remediation before painting, as it can be a health and structural issue beyond a paint job. Don't just paint over mildew; treat it first for a lasting result. This calculator includes mold-treatment and heavy-prep options for bathrooms with mildew issues.

Yes, painting a bathroom is a very doable DIY project and a popular one, since it's a small room and the materials are inexpensive — doing it yourself saves the labor cost, which is the bulk of a professional quote. A handy homeowner can paint a bathroom in a weekend. That said, bathrooms have some challenges that make them a bit trickier than a plain room: lots of cutting-in and edging around the vanity, mirror, fixtures, tile, and tight spaces requires patience and a steady hand (or careful taping); you need to properly prep, including cleaning (bathrooms get grime and soap film that paint won't adhere to well), addressing any mildew, caulking gaps, and priming patches/stains; you should use the right moisture-resistant bathroom paint and a higher sheen; ventilation matters during and after painting; and working around the toilet and in cramped corners is awkward. The keys to a good DIY result are thorough cleaning and prep, removing or carefully taping fixtures and hardware, using quality bathroom paint and a good brush for cutting in, and taking your time on the detail work. For a simple repaint of walls in good condition, DIY is very achievable and economical. If you have significant mildew/moisture damage, want a flawless finish, or prefer not to do the fiddly cutting-in, a professional delivers clean results quickly. This calculator estimates professional cost, which you can compare against doing it yourself.

The base bathroom painting cost typically covers the walls (and ceiling and trim if you select those in the scope), but some elements like the vanity cabinet and sometimes doors are often separate, which is why this calculator handles them as options and add-ons. Walls, ceiling, and trim/doors: the scope options let you include just walls, walls plus ceiling, or walls plus ceiling plus trim and doors — so trim and the door can be part of the base job if you choose that scope. The trim (baseboards, window/door casing) and the bathroom door, when included, add labor for the detailed brushwork. Vanity cabinet: painting the bathroom vanity (the sink cabinet) is usually treated as a separate task because it involves different prep (cleaning, sanding, priming the cabinet surfaces, and using a durable cabinet/trim paint) and more careful work for a smooth, durable finish — this calculator offers it as an add-on. Other separate items can include painting or refinishing built-in shelving, and re-caulking around fixtures (offered as an add-on). When getting a quote, clarify exactly what surfaces are included — walls, ceiling, trim, doors, and the vanity — so you can compare accurately. This calculator lets you set the scope (walls/ceiling/trim) and add the vanity, door, and caulking as needed to build a complete estimate. A full bathroom refresh often includes walls, ceiling, trim, the door, and the vanity.

Painting a bathroom is relatively quick because of the small size, typically taking a half-day to a full day for a professional, or a weekend for a DIYer, including prep and drying time. The breakdown: prep (cleaning the surfaces, treating any mildew, taping or removing fixtures and hardware, caulking, and priming patches/stains) takes some time and is important for a good result; cutting in and painting the walls (and ceiling/trim if included) in a small bathroom goes fairly fast for the actual rolling but the detailed cutting-in around all the fixtures and tight spaces is the slow part; and drying time between coats (usually 2 coats, with a couple of hours of drying between, more for the ceiling) adds to the timeline. A simple walls-only repaint of a small bath in good condition might be just a few hours plus drying. A full job (walls, ceiling, trim, plus the vanity) with prep and mildew treatment takes a full day or spreads over a day or two with drying. Factors that extend the time include extensive prep (heavy mildew, moisture damage, lots of patching), painting the vanity (which needs sanding, priming, and careful coats with drying time), multiple coats for dramatic color changes, and humidity (which slows drying in a bathroom — run the fan). Because bathrooms are small, even with the detail work they're one of the faster rooms to paint. Your painter can give a specific timeline; this calculator estimates the cost. Allow extra drying time before heavy use of the bathroom.