A3 Paper Size in Centimetres

The table below displays the paper size of A3 paper in centimetres.

Paper size Width Height
A3 29.7 cm 42 cm
Ledger 27.9 cm 43.2 cm

Ledger size = Canada and the United States of America.
A3 size = The rest of the world (United Kingdom, Australia, Germany, etc).

a3 paper size in centimetres

What are centimetres?

Centimetres are also known as cm and are part of the metric measurement.

There are 100cm in a metre.

2.54cms are equivalent to one inch.

Centimetres are most used for measuring small to medium distances.