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There are lots of guides out there but see this piece as a journey through the world of bath sizes in the UK. Get ready to finally create a tub that can be your personal fountain!

Bath Sizes in the UK

November 30, 2023

Aphrodite Wht Freestanding Solid Surface Bathtub 01 (720)

When creating your ideal sanctuary at home, the size of your bath can make all the difference.  This is true whether you're moving into a new place, planning a renovation, or dreaming about adding a brand-new bath to your space. But details like bath length and the standard bath size can be tiring to decide on. Yet, choosing the right fit can transform your bathing experience, maximising comfort and style. There are lots of guides out there but see this piece as a journey through the world of bath sizes in the UK. Get ready to finally create a tub that can be your personal fountain!

Know the Classics: Standard Bathtub Sizes

Just as you put thought into your bathroom's design, the size of your bath is important. Much like the standardised plumbing and electrical setups, bathtubs also adhere to specific sizes, measured in the metric system, giving us a clear idea of bath dimensions in the UK.

So, what's the usual? 

  • A standard bath size typically measures 170 cm in length and 70 cm in width – a popular choice offering a comfy soak without overwhelming your bathroom. 
  • If you're working with a snug space, a small bath at 140 cm long and 70 cm wide is a savvy option, ensuring a relaxing bath without sacrificing space.
  • More expansive large bath categories start from 180 cm long and extend further. These spacious options provide ample room for a luxurious bathing experience. 
  • A compact bath at 120 cm long might be your solution if your space is noticeably tight.
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Even with these standard dimensions, you should measure your space before making any buying decisions. Yes, your home's unique layout matters more than conforming to averages.

The average bath size we mean here is based on the widely embraced single-ended bath, a staple in many UK homes. Yet, there's a shift happening, and the "freestanding bath" is gaining popularity, adding a touch of inspiration to bathroom designs. So, you'll find many bath options that deviate from the standard bath dimensions in the UK. It's no longer a one-size-fits-all scenario.

Consider your home's specific criteria. If you're envisioning a grander style, a freestanding bath that defies traditional size norms could be your perfect match. The key is aligning your bath choice with what uniquely works for you. It's not just about conforming to bath sizes in the UK but finding the right fit for your space, personal taste, and even considering standard bath height. So, measure twice and buy once to be sure. 

How to Understand Bath Sizes

Aside from the length, width, and depth, the world of bathtubs has its own set of lingo. Understanding these can be the key to finding the perfect fit for your bathroom. Here are a few key terms to know in the diverse world of bath sizes:

Oval Bathtubs: Despite appearing generously sized, they're wider, not longer. Available in drop-in or free-standing models, these tubs add an elegant touch to your bathing space.

Aquatica Sensuality Black Freesatnding Solid Surface Bathtub 01 1 (web)

Alcove Bathtubs: This is a space bounded by three walls—often the go-to spot for a bathtub in smaller bathrooms. Sizes range from 140 to 180 cm long and 70 to 80 cm wide, offering flexibility to snugly fit your space.

Drop-in Tubs: Designed to seamlessly fit into a constructed deck, these tubs have the top and exposed sides finished with tile or another material . Perfect for luxury whirlpool tubs or grand two-person tubs .

Undermount Bathtub: Similar to a drop-in tub but with a covered rim of tile or stone framing, providing a sleek and seamless look. Typically 152 cm long, 76 cm wide, and 40 cm deep.

Whirlpool Tubs: These are a touch of luxury with jets or massage tubs. They come in various models, resembling simple alcoves, decorative drop-ins, or even corner tubs with dimensions like 121 by 121 by 45 cm or 182 by 182 by 50 cm.

Walk-in Bathtubs: Featuring a side door, these tubs allow easy entry without navigating a high lip. Ideal for those with restricted movement, combining accessibility with comfort.

Shower/Tub Combo: Often found in smaller or guest bathrooms, this space-saving solution combines the functionality of a shower and a bathtub. Perfect for making the most out of limited space.

Full Bathroom: A full bath is equipped with at least one sink, toilet, bathtub, and shower—the whole package for your daily rituals.

Remember, it's not just about the standard bath length in the UK or the width of a standard bath. You also need to find the dimensions and style that fit your unique space and preferences, considering bath measurements UK and the specific standard bath size UK.

Your Guide to Bath Types

When in doubt, a little friendly advice can go a long way in making the right decision for your bathroom. Let's explore the diverse options that can transform your bathroom into a haven of relaxation. Because whether you're working with a vast expanse or a more snug space, there's a bath type tailored just for you.

Large Baths

These are the kings of spacious bathrooms, measuring a generous 180 cm x 80 cm. Perfect for new builds or renovations where the goal is to go beyond the bath standard. These baths redefine luxury, offering an expansive oasis for those who appreciate a bit of extra elbow room.

Aquatica Lillian White Freestanding Solid Surface Bathtub DSF8749 (web)

Small Baths

Tailored for those working within limited spaces or unconventional layouts, these baths, ranging from 140 cm to 150 cm in length and 70 cm wide, pack a punch. If your bathroom or en-suite is on the cosy side, a small bath might just be the space-saving solution you need. 

Corner Bath

These tubs, often wider and shorter than straight baths, find their place in tricky layouts. Ideal for those who seek a shower-bath combo, corner baths make ingenious use of corners, turning challenging spaces into stylish retreats.

Freestanding Bath

To address the question, "how big is a bathtub?", making a statement with a freestanding bath might be the answer. These baths redefine luxury. If you've ever dreamt of a vintage-inspired bathroom with a touch of Parisian flair, a freestanding bath is your ticket to elegance. These tubs come in both large and small sizes, usually between 120–190 cm. Freestanding bathtubs become the show-stopping centrepiece of your bathroom, whether you lean towards modern or traditional styling. 

The majority of freestanding baths are double-ended, adding a touch of glamour with centrally positioned taps and plugs. No finishing panel is required, these baths offer a spa-like experience, allowing two people to indulge in a relaxing soak simultaneously.

About the question "how long is a bath?", whether you're aiming for grandeur with a large bath, maximising space with a small one, solving layout puzzles with a corner bath, or making a style statement with a freestanding beauty, there's a bath out there waiting for you. Consider your unique width of bath and the average length of a bath to guide your choice. With these diverse options, finding the perfect bath becomes less about conforming to standards and more about creating a space that speaks to your taste and comfort. 

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How to Measure a Bath

Ensuring your bath seamlessly integrates into your bathroom space is essential to avoid any hiccups in your renovation or new bathroom project. Let's walk through a straightforward step-by-step guide, addressing each dimension:

Length and Width

Start by measuring the space where your bathtub will be. For the length, place a tape measure at the head of the bath and stretch it straight across the top in a non-diagonal line, beginning at the widest part of the rim. This is crucial for understanding how long a standard bath is. 

To measure the width, find the widest point in the bath and stretch the tape measure in a straight line. If your bath has an unconventional shape, document the widest and slimmest parts for a comprehensive set of dimensions, taking into account bath widths UK.

Bath Height

Consider the ease of getting in and out;  the standard UK bath height is typically 51 cm. But there are other measurements, for example Aquatica freestanding bathtubs have a height of 60 to 95 cm.  Place the tape measure on the floor next to the bath and stretch it upwards to the edge of the bath. Remember, the bath height UK can be adjusted with a platform or added panels.


This is necessary to find out the maximum water depth or litres your bath can hold. Place the tape measure at the bottom of the inside of the bath and measure from the deepest part to the overflow, taking volume into account. This measuring guide is your go-to, regardless of the shape or style of the tub you're opting for. 

A great option would be to simply go for tubs that offer extra deep soaking tubs . These bathtubs are deeper than most other soaking tubs on the market and a perfect choice for taller bathers. Aquatica offers these for sale online for a reasonable cost. 

Aquatica True Ofuro Mini Freestanding Stone Japanese Soaking Bathtub web (720)

For renovation projects, when measuring from wall to wall, keep an eye on tiled walls. Tiled ends can slightly alter the measured length, as the bath sits a bit beneath the tiles. The length from tiled wall to tiled wall might differ from the length measured after tile removal. Now you can confidently explore different styles and bath models to find the perfect match for your space. 

Is there a standard size?

Is there really a standard size for UK baths? The answer is a bit like the baths themselves—diverse and tailored to your unique space.

Before now, the go-to typical bath size measured at 5'6" or 1675 mm. Fast forward to today, and the UK has settled on a standard bath size of 170 cm in length and 70 cm in width. But many fantastic bath options out there either shrink down or stretch beyond this standard.

Consider the distinctive criteria of your home. The average UK bathroom spans around 2.3 m x 2.7 m, leaving ample space for that essential clear zone around your bath. Small baths typically hover around 150 cm or 160 cm in length, with the width often sticking close to the standard 70 cm.

General Bath Dimensions

Let's take a closer look at the specifics—dimensions that turn a bath from just a functional fixture to a perfect fit for your space. 

Freestanding Baths: Freestanding tubs often measure 180 cm in length, 90 cm in width, and boast a water depth of 50 cm. 

Corner Bathtubs: These triangular tubs vary in dimensions, with sides ranging from 140 to 140 cm and a depth of 68 cm. 

Drop-In Bathtubs: Customizable and built into a frame, these usually have a length of 178 cm, a width of 76 cm, and a depth of 40 cm. 

Undermount Bathtubs: Similar to drop-in tubs but with a covered rim, these tubs typically measure 152 cm in length, 76 cm in width, and have a depth of 40 сm.

Sitting Baths: Despite the initial perception that bathing in a seated position may lack the comfort of traditional tubs, the Japanese approach challenges this notion. These baths, known as Ofuro style, invite bathers to sit comfortably, fully submerged to the upper chest in water. The design enhances the bather's sense of comfort and relaxation, as sitting with the feet lower than the body proves to be remarkably soothing. This kind of bath typically measures between 109 cm and 156 cm in length and 86-94 cm in height.

Aquatica true ofuro tranquility freestanding solid surface bathtub web 03 720

Walk-In Tubs: These baths typically measure between 140 cm and 160 cm in length, maintaining a width within the industry norm of 80 cm. The average walk-in tub height also falls within 75–100 cm. Topics like "how high is a bathtub" and the "average bath height" become crucial factors here for ease of use.

Alcove Baths: With a straightforward design, these tubs usually measure 152 cm in length, 76 cm in width, and 18 45 cm in height, ensuring a cosy space for your bath. Consider the standard size bathtub dimensions in cm for precise measurements.

Single-Ended Baths: These tubs, with a height of around 55 cm and widths ranging from 70 cm to 80 cm, can extend from 150 cm to 180 cm in length.

Double-Ended Baths: Designed for shared relaxation, these tubs boast centrally placed wastes with dimensions like 180 cm x 90 cm, 178 cm x 92 cm, and a height between 50–68 cm. The drain placement becomes a key consideration for a comfortable shared bathing experience.

Whirlpool Bathtubs: Whirlpool tubs average about 140–200 cm in length, 90 to 190 cm in width, and stand around 80 cm high. 

What Size of Bath Do You Need?

The key to finding the right bath size lies in understanding your individual preferences and the space you're working with. Here's a handy guide to help you pick the size that fits:

Space Consideration: Before you fall head over heels for a tub, take a step back and assess your bathroom space. Certain bathtub dimensions may not play nice with small spaces, while others might feel a tad too petite in a larger bathroom.

Aquatica True Ofuro Nano White Freestanding Solid Surface Bathtub 01 720

Weight Matters: The weight of your tub is a significant factor. Make sure it aligns with your bathroom's structural capacity. You don't want any surprise plunges of the structural kind!

Shape it Up: Bathtubs aren't just functional, they're stylish too! Consider the myriad of shapes available. Whether you go for the classic straight lines or opt for something more curvaceous, each shape brings its unique impact to the room. Let the shape of your tub reflect your style and enhance the overall aesthetics.

Mobility and Health: Your tub size isn't just about aesthetics; it's about functionality, especially if you have unique needs. If injuries or restricted mobility are part of the equation, your tub height becomes a crucial piece of the puzzle. Find a size that fits your physical requirements.

Colour Harmony: Imagine soaking in a tub that not only feels right but looks right too. Choose a bath color that resonates with you and complements the room's vibe. After all, your bath should be a visual treat as much as a relaxation spot.

Several buyers overlook the body size of those who'll be using the bath but the perfect tub is not just about the aesthetics. You deserve a comfortable and relaxing experience. Our recommendation is that before purchasing your bathtub, head to a showroom. Trying on bathtubs allows you to gauge their comfort firsthand. Alternatively, embrace the wonders of technology with virtual 3D applications. Specify your parameters, virtually step into different tubs, and ensure that your bathing experience will not only be stylish but tailor-made for your body size.

3D Body Position App for bathtubs

Final thoughts

In the end, the right bath size is a delightful mix of practicality and personal preference. So, take a moment to envision your perfect bath time. Picture the tub that makes you sigh with contentment, whether it's nestled in a cosy corner or taking centre stage in your bathroom. Consider your needs, the space you have, and the aesthetic you desire. Remember the perfect bath will be a daily retreat into relaxation and rejuvenation. 

We hope you have found this article helpful to make your bathroom your own little haven
Send us an email if you have more questions


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