C Envelope Paper Sizes Dimensions

C1

648 × 917mm

Compare this size

What size is C1 paper?

An C1 piece of paper measures 648 × 917 mm or 25.51 × 36.10 inches. It is part of the C Envelope Paper Sizes.

UnitsWidth × Height
Metric millimeters (mm)648 × 917 mm
Metric centimeters (cm)64.80 × 91.70 cm
Metric meters (m)0.648 × 0.917 m
Imperial inches (in)25.51 × 36.10 in
Typographic points (1/72 inch) (pt)1836.85 × 2599.37 pt
Typographic picas (1/6 inch) (pc)153.07 × 216.61 pc
Pixels at 300 DPI (px)7,654 × 10,831 px

C1 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 C1 paper?
C1 paper measures 648 × 917 millimeters, which is 25.51 × 36.10 inches or 64.80 × 91.70 centimeters.
What category does C1 belong to?
C1 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 C1 used for?
C1 (648 × 917 mm) is commonly used for printing, copying, and various document applications within the C Envelope standard.