Powder room, mid-size bathroom, large bathroom, or primary suite - the square footage you're working with changes the budget more than almost anything else. Here's the real 2026 cost for each size, what it buys, and the exact Bathify fixtures that fit.
Bathroom remodel cost by room size in 2026 ranges from $12,695-$14,845 for a 40-60 sq ft powder room up to $22,370-$24,715 for a 130+ sq ft primary suite, according to Bathify's national cost data drawn from This Old House's 2026 pricing report and 1,000-homeowner survey. Between those two ends sit two more tiers - a mid-size bathroom and a large bathroom - each with its own realistic budget and its own set of fixtures that actually fit.
Our complete bathroom renovation cost guide covers the national averages and the three renovation tiers - basic refresh, mid-range, and high-end. This guide goes one layer deeper on the question our team hears just as often: "what does my specific bathroom, at its specific size, actually cost?" That's a different question from renovation tier, because a 45 sq ft powder room getting a high-end refresh and a 150 sq ft primary suite getting a basic refresh can land at similar total budgets for very different reasons - and this guide is built around size first, scope second.
Measure your bathroom (or estimate its square footage from your home's floor plan) and jump straight to your size tier in the room-by-room breakdown. If you're not sure which category you fall into, read the average-sizes section first. Each size tier includes the real Bathify fixtures our team recommends for that footprint, and the FAQ at the bottom answers the six questions we hear most from homeowners comparing bathroom sizes and budgets.
The average bathroom size in a US home depends heavily on which bathroom in the house you mean. A true minimal half bath - just a toilet and a pedestal or small vanity sink, no tub or shower - can run as small as 18 to 30 square feet, while a primary bathroom in newer construction often averages closer to 100 square feet, according to Bob Vila's reporting on average US bathroom sizes. Bathify's own four-tier cost breakdown, used throughout this guide, reflects the full range homeowners actually remodel: a 40-60 sq ft powder room or small full bath, a 70-90 sq ft mid-size bathroom, a 100-120 sq ft large bathroom, and a 130+ sq ft primary suite.
At Bathify, we size our powder-room cost tier at 40-60 square feet rather than the smaller 18-30 sq ft industry minimum because most of the powder-room remodels our team hears about include a full refresh of flooring, paint, lighting, and a vanity swap across the whole footprint - not just a toilet and sink replacement. If your half bath is closer to that true 18-30 sq ft minimum, expect the cost-per-square-foot figures later in this guide to run even higher, since the same plumbing and permit costs are spread across even less floor area.
Bathroom remodel cost by square foot runs backwards from what most homeowners expect: the smallest bathrooms cost the most per square foot, and the largest cost the least. Across Bathify's four size tiers, a powder room remodel runs roughly $247 to $317 per square foot, while a 130+ sq ft primary suite runs closer to $165 to $172 per square foot - less than half, on a per-foot basis, despite costing far more in total dollars.
The reason is fixed cost. A toilet needs a plumber whether it sits in a 45 sq ft powder room or a 150 sq ft primary suite. Building codes require the same minimum clearances around every fixture regardless of the room's total size - the International Residential Code's plumbing fixture-clearance provisions set roughly 21 inches of clear floor space in front of a toilet, sink, and tub in virtually any US bathroom, small or large. Permits, waterproofing, and the labor to rough in supply and drain lines cost close to the same dollar amount whether the room around them is tiny or expansive. When you divide a mostly-fixed cost by a small number of square feet, the per-foot number climbs.
At Bathify, our team sees this misunderstanding constantly: a customer assumes a small powder-room refresh will be proportionally cheap because the room is small, then is surprised that the per-square-foot number is actually the highest of any bathroom size. Understanding this upfront changes how you should think about fixture selection - in a small bathroom, spending a little more on a genuinely good vanity or toilet barely moves the per-square-foot number, because labor already dominates the budget.
Here's the bathroom remodel cost by room size broken down into the four tiers Bathify's team uses when talking budget with customers - what each size typically includes, the real cost range, the cost per square foot, and the fixtures we'd actually recommend for that footprint.
How Much Does a Small Bathroom or Powder Room Remodel Cost?
A small bathroom or powder room remodel costs $12,695 to $14,845 for a 40-60 square foot footprint, the tightest budget of the four tiers but also the highest cost per square foot, at roughly $247-$317/sq ft. This tier typically includes a toilet, a compact single-sink vanity, flooring, paint, and lighting - no tub or shower to waterproof, which is the main reason the total dollar figure stays lower even as the per-foot number climbs.
At Bathify, we point powder-room shoppers toward space-efficient, complete solutions rather than piecing fixtures together separately. The Vanity Art Monaco 24" Vanity Set at $808.99 bundles a vanity, sink, and matching mirror into one purchase - one of the fastest ways to update a powder room without sourcing three separate products. For the toilet, the TOTO Entrada Universal Height Round Toilet Bowl starts at $166.99 and its round profile is specifically suited to tight footprints (note: this is the bowl only - a compatible Entrada tank is sold separately). If floor space is genuinely tight, our team also recommends looking at a wall-mount toilet, which reclaims 6-9 inches of depth versus a standard floor-mount design - see our wall-mount toilet guide for real installation costs before you commit.
Mid-Size Bathroom Remodel Cost (70-90 Sq Ft)
A mid-size bathroom remodel costs $15,920 to $18,070 for a 70-90 square foot space, working out to roughly $201-$227 per square foot. This is the tier where a tub-to-shower conversion most commonly happens, alongside a single vanity, new flooring and tile, and a full fixture refresh - the scope most US full-bathroom remodels actually fall into.
Our team's most common mid-size recommendation pairs a step-up vanity with a real shower system rather than a builder-grade single-function head. The Kube Bath Milano 36" Modern Freestanding Vanity at $1,235.99 is the vanity we most often suggest at this budget - a handle-free, minimalist design with an integrated sink and real drawer storage. For the tub-to-shower conversion itself, the Riobel Riu 2-Way System with Hand Shower and Shower Head at $1,250.99 gives you a rain shower head and a handheld on one thermostatic valve, and pairs with the same TOTO Drake toilet ($377.26) we recommend across every size tier for its reliable TORNADO FLUSH performance at a below-national-average price.
How Much Does It Cost to Remodel a Large Bathroom?
It costs $19,166 to $21,295 to remodel a large bathroom at 100-120 square feet, or roughly $177-$192 per square foot - the tier where a double vanity and a separate tub and shower both typically appear for the first time, since this is usually the minimum footprint that comfortably fits both a standalone shower enclosure and a freestanding or drop-in tub.
At this size, our team sees customers move up to a genuine double-sink vanity most often. The Kube Bath Milano 48" Double Sink Vanity at $1,438.99 fits comfortably in a large bathroom's footprint without crowding the separate shower zone. For the standalone tub, the Vanity Art Adonis 55" Acrylic Freestanding Bathtub at $966.99 is a genuine focal-point upgrade for well under the $1,123 national average bathtub allowance. If the separate shower includes a bench, the Volkano Matte Shower Stool at $356.99 is a practical, water-rated addition our team recommends for anyone planning to actually sit and shower rather than just stand. For a full look at how a standalone shower compares to an enclosure at this size, see our walk-in shower vs shower enclosure guide.
Primary Bathroom Remodel Cost: The Luxury Tier (130+ Sq Ft)
A primary bathroom remodel costs $22,370 to $24,715 for a 130+ square foot space, the highest total budget but the lowest cost per square foot in this guide at roughly $165-$172/sq ft. This tier is where a separate water closet, premium finishes, and a genuinely luxury fixture package become realistic, because the floor area finally supports all of it without any zone feeling cramped.
At Bathify, this is the budget where fixture choice starts to define the room rather than just furnish it. For the vanity, the Kube Bath Bliss 60" Double Sink Wall Mount Vanity at $1,553.99 gives a floating, gallery-quality look that suits a primary suite's scale. For the soaking tub, the Kube Bath Solato 67" Freestanding Bathtub at $1,542.99 is sized for a genuine soak rather than a quick bath. A separate water closet at this size is also where a wall-mount toilet earns its premium - see our wall-mount toilet guide and browse the wall-mount toilet collection for real fixture-and-carrier pricing. To round out the water closet, our team frequently recommends adding the Brondell Swash Select BL67 Sidearm Bidet Seat at $249.99 - a genuine quality-of-life upgrade at a fraction of a full smart-toilet replacement cost.
This table lines up all four bathroom sizes side by side so you can see the full pattern in one place - total cost climbing, cost per square foot falling.
| Bathroom Size | Square Footage | Total Cost Range | Cost Per Sq Ft | Typically Includes |
|---|---|---|---|---|
| Powder Room | 40-60 sq ft | $12,695-$14,845 | ~$247-$317 | Toilet, compact vanity, space-saving fixtures |
| Mid-Size Bathroom | 70-90 sq ft | $15,920-$18,070 | ~$201-$227 | Single vanity, tub-to-shower conversion |
| Large Bathroom | 100-120 sq ft | $19,166-$21,295 | ~$177-$192 | Double vanity, separate tub and shower |
| Primary Suite | 130+ sq ft | $22,370-$24,715 | ~$165-$172 | Luxury fixtures, separate water closet |
Cost-per-square-foot figures are calculated from the low and high end of each tier's square footage and cost range, per This Old House's 2026 national pricing data. Primary suite figures assume a representative 130-150 sq ft range for the "130+" tier; larger primary suites trend even lower per square foot.
Square footage doesn't just add empty floor - each size tier tends to unlock a specific scope change that the tier below it can't physically fit. Understanding which change is driving your budget helps you decide whether to spend more on square footage or more on finishes within the space you already have.
A genuine double-sink vanity needs roughly 60" of wall width to avoid crowding each sink zone - which is why this jump mainly appears at 100 sq ft and up. See our vanity buying guide for exact sizing rules.
Splitting one tub-shower combo into a standalone tub and a separate shower enclosure requires a second drain, a second waterproofing zone, and more floor area than most mid-size bathrooms have to spare.
A fully partitioned water closet adds a wall, a door, and dedicated ventilation on top of the toilet itself - realistic almost exclusively in primary suites at 130 sq ft or more.
Once a vanity crosses roughly 60" wide, two individually sized mirrors typically look better than one continuous wide mirror over both sinks - a detail that follows vanity width more than raw square footage.
Every product below is real and currently available at Bathify, organized by the room size it fits best.
A complete vanity, sink, and matching mirror in one purchase - the fastest way to update a powder room or secondary bathroom without sourcing three separate products. Moisture-resistant construction with an engineered marble top.
A handle-free, minimalist vanity with push-open drawers and an integrated white acrylic composite sink - the vanity our team most often recommends when a 70-90 sq ft bathroom calls for a real visual upgrade over a basic refresh.
The double-sink version of Bathify's most-recommended modern vanity - one door and six fully functional drawers with a white acrylic composite countertop and integrated sinks, sized to fit a 100-120 sq ft bathroom without crowding a separate shower zone.
A genuine freestanding soaking tub for less than the $1,123 national average bathtub allowance - the focal-point upgrade our team recommends once a large bathroom's footprint supports a standalone tub separate from the shower.
A floating double-sink vanity with reinforced acrylic sinks and a moisture-proof wood veneer console - the wall-mount silhouette our team recommends for primary suites at 130+ sq ft where fixture choice defines the room's character.
A contemporary, ergonomic soaking tub with reinforced acrylic composite construction and a slim chrome overflow - sized for a genuine soak rather than a quick bath, and the tub our team most often pairs with a primary-suite remodel.
Match your fixture list to your actual square footage - not the other way around
40-60 sq ft (powder room): Budget $12,695-$14,845. A complete vanity set like the Monaco 24" and a compact toilet cover the essentials. Don't fight the footprint - a wall-mount toilet is worth pricing if floor space is genuinely tight.
70-90 sq ft (mid-size): Budget $15,920-$18,070. This is where most tub-to-shower conversions happen. A step-up single vanity (Milano 36") plus a real shower system (Riobel Riu) delivers the most visible upgrade per dollar.
100-120 sq ft (large): Budget $19,166-$21,295. Confirm your layout genuinely supports a double vanity and a separate tub and shower before pricing fixtures at this tier - the space, not just the budget, has to accommodate both.
130+ sq ft (primary suite): Budget $22,370-$24,715. This is the one tier where a separate water closet and true luxury fixtures - a floating double vanity, a genuine soaking tub, a wall-mount toilet - all become realistic in the same room.
Every tier: Add a 20% contingency on top of whichever budget you land on, and confirm rough-in dimensions before ordering any fixture. For the full national cost picture beyond square footage - basic refresh vs. mid-range vs. high-end - see our complete bathroom renovation cost guide.
Shop Real Fixtures for Your Bathroom, Whatever the Size
Vanities, toilets, faucets, tubs, and mirrors from TOTO, Kube Bath, Vanity Art, Riobel, and Brondell. Free shipping on orders over $50. Shipped across the USA.
