How To Measure Your Sink Plug Size

  • Sink plugs are one of those things that break without warning.
  • Sinks can be awkward to measure.

There will come a time when you might need to replace your sink’s plug, when that happens, you’ll need this information.

The standard plug

There is an average plug size for kitchen and bathroom sinks, but that doesn’t mean that your home is blessed with that size of plug and plug hole. For the home that does have a normally sized plug, you’re looking at 1.75 inches for the kitchen, and 1.5 inches for the bathroom.

Bathroom showers and bathtubs may have different sizes, too. It all depends on what was installed in that room. For example, there is some argument about what the standard size of a plug in the UK is. This isn’t helped by the variation in plug sizes.

Plugs are available in a range of sizes, usually from as small as one inch, and as large as 2.5 inches. Some specialist companies may be able to go beyond that range, but it’s not a common need in the world of sink plugs.

Measuring sink plug
Water rushing down an open sink drain.

Measuring your sink

Despite your sink hole being a circle, you do not need to measure the circumference of the plug hole to get the answer to your plug size question.

Instead, take a flexible measuring tape and measure across the widest part of the plug hole. You can also measure across the bottom of your existing plug – if you still have it somewhere. To confirm that: Measure the diameter of the bottom of the plug or the drain.

Using a flexible measuring tape in this situation is going to make your life a whole lot simpler. Sinks are not known for their flat surfaces, and it’ll be difficult to get a ruler to measure the diameter of the drain with any accuracy unless you have an amazing eye.

See Also

Why you might need a new plug

Plugs break. That’s one of the main reasons that anyone goes shopping for a new plug. It’s more likely that it’s your bathtub or bathroom sink plug that has broken. It won’t be broken beyond repair, not at all, but something else happens instead.

When the chain of a bathroom plug comes off (we’re sure all of our readers have at least a handful of childhood memories where this happened), it’s rarely put back on immediately. Chains are then lost, and you’re left with a plug that has a small connector, making it harder to use.

Another reason plugs are replaced is rust or finish damage. Cheaper plugs are more prone to getting chipped or damaged finishes, which can make plugs look unsightly. In the case of rust, it’s easier to just throw away the plug and get a new one.

Rubber plugs are just as easy to damage as cheap metal plugs, but cheap plugs are cheaper to replace, which is why they’re more likely to be purchased.

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