Will it fit? Measure your bag and your essentials
Check usable space, the opening and your longest item before relying on a capacity label.
Before you start
Gather a flexible tape, the items you carry and the bag’s actual dimensions. Check whether a seller’s dimensions refer to the exterior or the usable interior.
- 01
Measure the opening
Measure the usable width when the zip or fastening is open. A wide bag can still have a narrow opening. Compare it with the widest part of your laptop, folder or lunch box.
- 02
Measure usable height, width and depth
Measure inside the bag without stretching it. Note the narrowest sections, rounded corners, seams and internal pockets. For a flat tote, do not invent a depth that is not given.
- 03
Use volume only as a rough check
For a rectangular space, height × width × depth in centimetres ÷ 1,000 gives a rough litre estimate. It is not certified capacity, usable packing space or a weight limit.
- 04
Check shape and closure together
Compare your actual item dimensions with the usable interior and opening. Check whether the zip can close without force. For a purchase, request missing measurements before ordering.
Know the limits
- A label such as A4, medium or large does not replace actual measurements.
- Do not infer a safe carrying load from volume or strap appearance.
- The linked tote has a minimum order quantity; check the current product page before buying.
