A sheet of A4 paper is about 1.41 times as long as a sheet of A5 paper.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
29.7 cm - Length; standard.
A4 paper is an ISO 216 paper format commonly used internationally for letters, forms and printed documents.
A4 is 210 × 297 mm. Its 0.06237 m² area is calculated from those nominal sides. The marked span uses the exact measurement; the generated paper texture and outline are illustrative.
University of Cambridge — ISO paper sizes21 cm - Length; standard.
A5 paper is an ISO 216 paper format commonly used for notebooks, leaflets and small documents.
148 × 210 mm. Area is derived from trimmed sides.
University of Cambridge — ISO paper sizes
There’s always another scale
Everyday thingsA4 paper29.7 cmA4 paper is an ISO 216 paper format commonly used internationally for letters, forms and printed documents.
Everyday thingsA5 paper21 cmA5 paper is an ISO 216 paper format commonly used for notebooks, leaflets and small documents.
Everyday thingsA3 paper42 cmA3 paper is an ISO 216 paper format commonly used for drawings, diagrams and small posters.
Everyday thingsSmartphone15 cmA smartphone is a portable electronic device that combines mobile phone functions with internet access and apps.
Everyday thingsDesk1.2 mA desk is a table designed as a work surface for writing, reading or using equipment such as a computer.Side by side
Illustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scaleGot a good eye for scale?