C Envelope Paper Sizes Dimensions

C9

40 × 57mm

Compare this size

What size is C9 paper?

An C9 piece of paper measures 40 × 57 mm or 1.57 × 2.24 inches. It is part of the C Envelope Paper Sizes.

UnitsWidth × Height
Metric millimeters (mm)40 × 57 mm
Metric centimeters (cm)4.00 × 5.70 cm
Metric meters (m)0.040 × 0.057 m
Imperial inches (in)1.57 × 2.24 in
Typographic points (1/72 inch) (pt)113.39 × 161.57 pt
Typographic picas (1/6 inch) (pc)9.45 × 13.46 pc
Pixels at 300 DPI (px)472 × 673 px

C9 is part of the c envelope paper sizes standard.The C series envelope sizes are defined in ISO 269. C envelopes are designed to hold A series paper: a C4 envelope holds an A4 sheet, a C5 holds A5 or a folded A4, etc.

Frequently Asked Questions

What are the dimensions of C9 paper?
C9 paper measures 40 × 57 millimeters, which is 1.57 × 2.24 inches or 4.00 × 5.70 centimeters.
What category does C9 belong to?
C9 is part of the C Envelope Paper Sizes standard. The C series envelope sizes are defined in ISO 269. C envelopes are designed to hold A series paper: a C4 envelope holds an A4 sheet, a C5 holds A5 or a folded A4, etc.
What is C9 used for?
C9 (40 × 57 mm) is commonly used for printing, copying, and various document applications within the C Envelope standard.