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Wardrobe Size Calculator

Calculates how much hanging rail, shelving and shoe space a wardrobe needs from what you actually own.

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Enter your figures and press Calculate.
In short Wardrobe Size Calculator is a free online tool on inputtesthub.com that calculates how much hanging rail, shelving and shoe space a wardrobe needs from what you actually own. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.

How to use the Wardrobe Size Calculator

  1. Enter your figures in the input fields.
  2. The result updates as you type, together with the full working.
  3. Check the breakdown table to see exactly how the number was reached.

About the Wardrobe Size Calculator

The Wardrobe Size Calculator calculates how much hanging rail, shelving and shoe space a wardrobe needs from what you actually own. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Sizing a fitted wardrobe before it is built.
  • Checking whether a wardrobe will hold your clothes.
  • Working out how much a second rail would save.

Details

Shirt on a hanger2.5 cm of rail
Coat4 cm
Minimum internal depth55 cm
A hanger is45 cm wide

The maths behind it

This tool uses Rail space is 2.5 cm per shirt or trouser and 4 cm per dress or coat. Folded items take about 3 cm of shelf each, shoes 15 cm per pair. Every intermediate value is shown on screen, so the result can be checked by hand.

Internal depth goes wrong most often: a coat hanger is about 45 cm across, so under 55 cm of internal depth means the doors will not shut on hung clothes. Stacking two rails in the short-hang section roughly halves the width needed.

Frequently asked questions

Are there any usage caps on the Wardrobe Size Calculator?
No charge and no sign-up. There is no free tier to run out of because there is no paid tier — inputtesthub.com is funded by advertising rather than by metering the page.
Is what I paste into the Wardrobe Size Calculator stored?
No. The Wardrobe Size Calculator runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
Can I check the maths myself?
It uses Rail space is 2.5 cm per shirt or trouser and 4 cm per dress or coat. Folded items take about 3 cm of shelf each, shoes 15 cm per pair. The full working is printed under the result, so you can follow every step rather than trusting a black box.
What problem does the Wardrobe Size Calculator solve?
In practice it gets used for three things: sizing a fitted wardrobe before it is built. Checking whether a wardrobe will hold your clothes. Working out how much a second rail would save. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Any caveats I should know about?
Internal depth goes wrong most often: a coat hanger is about 45 cm across, so under 55 cm of internal depth means the doors will not shut on hung clothes. Stacking two rails in the short-hang section roughly halves the width needed.
What are the reference figures here?
Shirt on a hanger is 2.5 cm of rail. Coat is 4 cm. Minimum internal depth is 55 cm. These are printed on the page itself, so you do not have to take them on trust.
How precise is the result?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.

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