Luggage Size Calculator

Converts suitcase sizes between centimetres and inches, adds up the linear dimensions, estimates the volume and compares the bag with a size or weight limit you enter. Use it before buying a suitcase or packing for a flight.

How to use

1. Under "Your bag", choose cm or in and enter the "Height", "Width" and "Depth", measured with wheels and handles.
2. Read the linear dimensions, the volume in litres and the "Inch" size name on the right.
3. Under "Compare with a limit", enter the limit from your airline, or tap an example limit to try it, and see the margin for each side.
4. Press "Save this bag" to add bags to the table under "Compare bags".

How it works

• Linear dimensions = height + width + depth. Volume = height × width × depth ÷ 1000 (cm³ to litres), from the outside size, so the space for packing is smaller.
• When the limit is given per side, the sides are compared from longest to shortest, so the bag may be turned any way.
• The example limits are examples only; limits differ by airline, fare and class. One inch is exactly 2.54 cm and one pound exactly 0.45359237 kg.
• Saved bags stay in this browser on this device.

Questions and answers

What are linear dimensions of a suitcase?

The sum of its height, width and depth. A 55 × 40 × 20 cm bag has linear dimensions of 115 cm, about 45.3 in.

How tall is a 24-inch suitcase in cm?

24 inches is 60.96 cm. The name usually refers to the height, but makers differ on whether the wheels are included, so check the real measurements.

How many litres is a 55 × 40 × 20 cm bag?

The outside box is 44 litres. The space inside is smaller because of the frame, wheels and handle.

Do wheels and handles count in the size?

Airlines usually measure the outside size including wheels, handles and pockets. Measure between the points that stick out most.