Laptop fit: compare measured internal dimensions and the opening

A screen diagonal tells you little about the size of the closed computer. A bag’s outside measurements also do not tell you how much space remains inside its padded sleeve.

Compare your measurements

Replace the example pocket dimensions with measurements taken inside the actual compartment. Presets are approximate examples, not a model-identification service. Measure your own device including feet, covers and any sleeve you intend to use.

Understand the gaps

The tool reports the total difference between pocket and device along each axis. A total width difference of 2 cm (0.8 in) gives approximately 1 cm (0.4 in) on each side only if the device is centred. It does not mean 2 cm (0.8 in) of padding around the computer.

The starting checks use 1.5 cm (0.6 in) of total width/depth difference and 0.5 cm (0.2 in) of thickness difference. These are planning allowances, not an industry guarantee. A tight opening, curved corners or other contents may still prevent a comfortable fit.

Measure the opening too

Measure the narrowest usable opening as well as the pocket. Account for zipper teeth, seams, padding and corner shape. Test insertion without forcing the device. A compartment that encloses a device on paper may not let it pass through the opening.

The product suggestions below the calculator intentionally ask you to confirm internal measurements. They do not infer laptop-pocket size from catalogue exterior dimensions.

Read the comparison view as a schematic

The separated planes compare entered pocket size, device size and the differences between them. They do not depict padding, a suspended floor or accessory storage. Remaining thickness is not a drop-protection rating.

For reference, Apple’s 16-inch MacBook Pro 2024 specifications list 35.57 × 24.81 × 1.68 cm (14.01 × 9.77 × 0.66 in). Other generations and protective cases can differ.