Paper Sizes — A, B, C, US, Photo & Business Card Dimensions

Paper sizes are standardised dimensions for print and stationery. The international ISO 216 standard defines the A and B series; the C series covers envelopes. North America uses its own sizes (Letter, Legal, Tabloid). Photo and business-card sizes follow photographic and industry conventions. All dimensions on this page are in portrait orientation.

A Series (ISO 216)

The international A series — the everyday standard for documents, posters and books across India and most of the world. Each size is half the previous one.

B Series (ISO 216)

The B series sits between A sizes and is common for books, posters, envelopes and passports.

C Series Envelopes (ISO 216)

The C series is used for envelopes — a C-size envelope neatly holds the matching A-size sheet (a C4 envelope fits an A4 sheet unfolded).

US / ANSI Paper Sizes

North American paper sizes. Letter and Legal are the most common; Tabloid/Ledger is used for spreads and posters.

Photo Print Sizes

Common photo print sizes used in India, in both the R-series naming and inches.

Business Card Sizes

Standard business / visiting card sizes. India most commonly uses 85×55 mm.

Print on any paper size — upload your file for an instant price

Browse all printing services · Price calculator