Laptop Fit Planner

Work through a cased-device example

For a worked example, enter a cased laptop measuring 32cm wide, 22cm high and 2cm thick. Enter a usable sleeve measuring 33cm by 23cm with 3cm of depth, and choose 0.5cm extra allowance. The calculation compares 32.5 × 22.5 × 2.5cm against the sleeve; these dimensions pass in the entered orientation.

The allowance is added once to each dimension, not once on each side. A 0.5cm entry therefore adds 0.5cm to the width, rather than a full centimeter. It is your chosen allowance, not a manufacturer-approved clearance. Use centimeters consistently across every input and measure the protective case you will actually carry.

The alternative orientation swaps width and height while leaving thickness unchanged. A rotated result is only useful if the real opening lets you insert the device that way. The planner does not tilt the laptop diagonally, compress padding or model curved corners.

A numerical pass still needs a physical check. Seams, a narrow opening and roll-top closure space can prevent insertion or closing. Pack the charger, lunch and other commuting items too, ensuring none presses a hard edge against the computer. If sleeve depth or opening dimensions are unavailable, ask for them rather than entering the backpack’s exterior measurements.