Box Size

Will it fit? Answer it in ten seconds. Box Size is a small, precise tool for one very common question: I have this box, and I have this thing - does the thing go inside the box? Type in six numbers and you get a straight answer, plus the numbers behind it. WHAT IT TELLS YOU - Fits or does not fit, stated plainly at the top - Whether it fits as entered, or only once the item is turned - The gap left on every side, per side, with the item centred - Volume of the item, volume of the box, and how much of the space is used - Corner-to-corner diagonal for both, because that is the absolute longest line inside a box - A to-scale drawing of the item sitting inside the box, so you can see the fit rather than just read it EVERY ROTATION, CHECKED Most people compare length to length and height to height and stop there. Box Size sorts both sets of sides and matches them properly, which is the same as testing every way the item could be turned. An item that is too tall standing up but goes in perfectly on its side is reported as a fit, and the app says so in as many words. CLEARANCE, WHEN IT MATTERS Shipping something breakable? Switch on clearance and give it two centimetres of padding on every side. The usable inside of the box shrinks accordingly and the verdict updates. Set a default clearance in Settings and every new check starts with it already applied. SAVE THE SIZES YOU USE OFTEN Keep a library of the boxes you deal with - a shipping carton, a drawer, a cabin bag, the boot of the car - and the items you measure often. Pull any of them into a check with a single tap on a chip. No retyping, no notes app, no guessing. FOUR UNITS, CONVERTED PROPERLY Centimetres, inches, millimetres and metres. Switch units mid-entry and the numbers you already typed are converted rather than reinterpreted, so nothing quietly changes size behind your back. A HISTORY YOU CAN GO BACK TO Every comparison is recorded on the device with its verdict, so you can look up what you checked last week. Tap any entry to open the full result again. Do not want a history? Switch it off in Settings and nothing is recorded. NO SAMPLE DATA, NO ACCOUNT, NO INTERNET The app opens empty on purpose - it is your data, not a demo. There is no sign-in, no network permission and no analytics. Everything you type lives on your phone and can be erased in one tap from Settings. Useful for shipping and postage, moving house, packing luggage, storage boxes, drawers and shelves, parcel lockers, hand-luggage limits, and every time a shop lists dimensions but not whether your thing will actually go in.