Measurements for International Paper Sizes & Envelope Dimensions
There are three ranges of paper sizes, prefixed A, B and C. The most widely used for general printing and letterhead stationery is the A series. The most common of these sheet sizes is the international letterhead size A4, which measures 8-1/4 x 11-3/4 in, or 210 x 297 mm. These paper measurements are defined by the ISO 216 standard.
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Standard International Paper Sizes and Measurements
A0 | 33-1/8 x 46-13/16 in | 841 x 1188 mm | 84.1 x 118.8 cm |
A1 | 23-3/8 x 33-1/8 in | 594 x 841 mm | 59.4 x 84.1 cm |
A2 | 16-1/2 x 23-3/8 in | 420 x 594 mm | 42.0 x 59.4 cm |
A3 | 11-3/4 x 16-1/2 in | 297 x 420 mm | 29.7 x 42.0 cm |
A4 | 8-1/4 x 11-3/4 in | 210 x 297 mm | 21.0 x 29.7 cm |
A5 | 5-7/8 x 8-1/4 in | 148 x 210 mm | 14.8 x 21.0 cm |
A6 | 4-1/8 x 5-7/8 in | 105 x 148 mm | 10.5 x 14.8 cm |
A7 | 2-15/16 x 4-1/8 in | 74 x 105 mm | 7.4 x 10.5 cm |
A8 | 2-1/16 x 2-15/16 in | 52 x 74 mm | 5.2 x 7.4 cm |
Standard International Envelope Sizes and Measurements
C4 | 12-3/4 x 9 in | 324 x 229 mm | Flat A4 or A3 folded once |
C5 | 6-3/8 x 9 in | 162 x 229 mm | Flat A5, A4 folded once, or A3 folded twice |
C6 | 4-1/2 x 6-3/8 in | 114 x 162 mm | Flat A6, A5 folded once, or A4 folded twice |
C7/6 | 3-1/2 x 6-1/2 in | 89 x 165 mm | 1/3 A4 |
DL | 4-1/4 x 8-5/8 in | 110 x 220 mm | A5 folded once or A4 folded twice |
Folding Examples:
Convert 4 x 8.6 inches to millimeters
To convert length x width dimensions from inches to millimeters we should multiply each amount by the conversion factor. One inch equals 25.4 millimeters, in order to convert 4 x 8.6 inches to millimeters we have to multiply each amount of inches by 25.4 to obtain the length and width in millimeters. In this case to convert 4 x 8.6 inches into millimeters we should multiply the length which is 4 by 25.4 and the width which is 8.6 by 25.4. The result is the following:
4 x 8.6 inches = 101.6 x 218.44 millimeters
Definition of inch
An inch (symbol: in) is a unit of length. It is defined as 1⁄12 of a foot, also is 1⁄36 of a yard. Though traditional standards for the exact length of an inch have varied, it is equal to exactly 25.4 mm. The inch is a popularly used customary unit of length in the United States, Canada, and the United Kingdom.
Definition of millimeter
The millimeter (symbol: mm) is a unit of length in the metric system, equal to 1/1000 meter (or 1E-3 meter), which is also an engineering standard unit. 1 inch = 25.4 mm.
Inches to millimeters formula and conversion factor
To calculate a inch value to the corresponding value in millimeters, just multiply the quantity in inches by 25.4 (the conversion factor).
Inches to millimeters formulae
millimeters = inches * 25.4
The factor 25.4 is the result from the division 1 / 0.0393701 (millimeter definition). Therefore, another way would be:
millimeters = inches / 0.0393701
Using our inches to millimeters converter you can get answers to questions like:
- How many mm are in 4 by 8.6 inches?
- 4 x 8.6 inches is equal to how many mm?
- How to convert 4 inches x 8.6 inches to mm?
- What is 4 inches by 8.6 inches in mm?
- How many is 4in x 8.6in in mm?