What is a Standard Bath Size?

Quick Answer: the standard UK bath size is 1700m in length and 700mm in width.

Installing a bath in your bathroom may at first look like a simple project. But there are a lot of considerations to make before proceeding and one of them is size. Picking the right bath size is the first step.

So, what’s the standard bath size?

Here are a few tips to help you decide:

The Standard Bath Size

Traditionally, a standard bath measures 1,700 mm in length and about 700 mm wide. This is the standard bath but you can also buy a smaller or bigger one depending on your needs. Normally, the smallest bath you can find measures between 1,400 mm and 1,500 mm in length and 700 mm wide. In case you want something bigger, there are baths in the market that measure 1,800 mm long and 800 mm wide. This will often be the freestanding baths that are normally found in larger bathrooms. Despite these options, a bath should at least be 760 mm wide for it to be comfortable.

Different Bath Lengths & Dimensions

When talking about a “standard” size bath there are a few different choices that you have to suit your bathroom.

Some examples of standard UK bath sizes are as follows:

Bath TypeBath LengthBath Width

It’s also common for people to ask us to display this in cm. Bathtub dimensions in cm is 10mm = 1cm, so a standard UK bath tub for instance would be 170cm(L)x70cm(W)

How to Factor in the Bathroom Size?

It is also very important to consider the size of your bathroom before buying the bath. The golden rule is to make sure the bath is big enough to meet your needs without cluttering the space. There are a few things you can do to achieve this. First, the ratio of bath to bathroom size has to be perfect. Sadly, there is no easy way to determine this since bathroom sizes and shapes vary. In addition to this, there are no limitations in bathroom sizes. Although it’s not often you will find massive bathrooms, there are a lot of people who have relatively bigger spaces. The challenge with this is that you will not get a bath measuring more than 2,000 mm in length. So, the bigger your bathroom is, the hard it will be to get the right ratio.

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However, it is possible to estimate the ratio. The standard bathroom measures 2,400 x 1,500 mm. This is relatively small and as such, it’s advisable to go for the shorter shower bath that measures around 1,500 mm in length. You may also decide to go for a corner bath to save space too. In case you have a large bathroom, it’s much more flexible to get any type of bath you want. Standard large bathrooms measure 3,660 x 3,050 mm in size. This is a lot of space to play with. The only challenge here will be to find a bath big enough to perfectly fit the large bathroom. But you can work your way around this by changing the position where the bath goes. There’s no established method of deciding where the bath should be positioned. You will have to sit down with a paper and a pen, layout the entire bathroom, and test various locations before choosing.

Buying the right bath size for your bathroom can be challenging at times. But if you know your bathroom size, it should be easy to get the right fit.

No Sizes Match The Standard Bath Measurements (1650mm)

You’ll often find that if you measure your current bath from wall to wall it might be ever so slightly off a standard bath size we’ve talked about above. There can be several reasons for this.

People regularly measure wall to wall and get a measurement of 1650mm.

You might be measuring from a tiled wall, the few mm thickness of the two tiles you are measuring may be the reason for it being off. If this is the case, you might find when you remove the current bath that the tiles are cut underneath the seal you can’t see, but if they aren’t you may want to look at cutting them to fit the bath in.

Another thing you can do is add a bath surround in order to make up the extra space, and choose a bath that is slightly smaller.

Example Standard Bath Tub Prices

We’ve pulled together a few examples of some standard sized bath tubs on Amazon to give you an idea of how much it may cost to get one for your fresh new bathroom:

Get a quote on Bathroom installation

Is it all just a bit too much to think about? You can always get a professional to help install your bathroom for you, taking all the pressure off your hands. Simply use the below quote engine which will send your details to local tradesmen and companies who will be able to supply you with quotes on the work.

About Mat

A complete novice trying to navigate in the world of DIY. I bought my first home about 2 years ago & ever since I've been trying to research & learn how best to tackle common household problems.

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