Find your laptop physical dimensions
When you need width, depth, thickness or weight — for picking a sleeve, sizing a docking arm, or working out if it fits in your bag — here are three ways to get the answer.
Method 1 — manufacturer spec sheet (most accurate)
Find your model name first — see "what kind of laptop do I have" if you do not know it. Then:
- Search "[model name] specifications" on Google.
- Click the result on the manufacturer's official support site (hp.com, dell.com, lenovo.com, support.apple.com, asus.com).
- Look for the "Dimensions and weight" section. Most spec sheets list it directly.
The spec sheet gives:
- Width × depth × height in millimetres and inches.
- Weight in kilograms and pounds (sometimes broken down into "starting weight" — the lightest configuration — and the actual weight of yours).
Method 2 — measure with a ruler (one minute)
Close the laptop. On a flat surface:
- Width = the long edge from left to right when looking at it from above. Modern 13" laptops are typically 290-310 mm wide; 15.6" laptops are 350-365 mm; 17.3" laptops are 390-410 mm.
- Depth = the short edge from front to back. 13" laptops are usually 200-225 mm deep; 15.6" laptops are 220-245 mm; 17.3" laptops are 260-285 mm.
- Height (thickness) = the closed thickness, from the bottom of the rubber feet to the top of the lid. Premium ultrabooks are 14-17 mm; mainstream 17-22 mm; gaming laptops 22-30 mm.
- Weight = use kitchen scales for laptops under 5 kg.
Method 3 — browser tools (limited)
The browser cannot read physical dimensions — only the screen properties. The closest you can get is using our screen size detector to estimate the diagonal inches, and our laptop detector to identify the brand. From those two, the manufacturer spec sheet is one search away.
Why dimensions matter
Sleeve and bag fit
Sleeves are sized by screen diagonal but the actual fit depends on width × depth × thickness. A 13" sleeve fits most 13" laptops with comfortable margin, but Apple's MacBook Pro 14 — at 312 mm × 221 mm — does not always fit traditional 13" sleeves designed for older Dell XPS 13s (296 mm × 199 mm). Check the sleeve's internal dimensions, not just the labelled inches.
Docking and vertical stands
Vertical laptop stands have a slot width and a maximum thickness. A modern thin laptop slides in easily; a thick gaming laptop may not fit at all in a stand designed for ultrabooks. Look for the stand's "compatible with up to X mm thickness" specification.
Backpacks and travel cases
Backpack laptop compartments are sized for typical laptops in a given diagonal class, but lid thickness varies more than people realise. A 16" gaming laptop is often physically larger than a 17" ultrabook because of cooling. Check the backpack's "max laptop size: W × D × H" rather than just the inch label.
Replacement bottom case or hinge
For repair purposes you do not need overall dimensions — you need the exact part number, which lives in the manufacturer's parts catalogue and is keyed to your full model number, not your laptop's footprint.
The "starting weight" trap
Manufacturer spec sheets often quote a "starting weight" that assumes the lightest configuration available — smallest battery, slowest CPU, no discrete GPU. The laptop you bought may weigh significantly more. For a 15.6" gaming laptop the difference between starting weight and your actual weight can be 400-500 g.
If you need the precise weight (e.g. for airline carry-on weight limits), put it on kitchen scales. The spec sheet number is a guide, not a guarantee.