Measurements Of C Series Envelope Sizes In Different Units

C Envelope Sizes - Quick Lookup

Select the standard envelope size from the 'Size' selector and the unit from the 'Unit' selector - the measurements in your selected unit will be shown in the dimensions box.

Size Unit Dimensions
in is
0.229 x 0.324

The tables below give the dimensions of the C series envelope sizes in a selection of units

Table of Envelope Sizes From C0 to C10 in Metric Units

This table gives width x height for C series envelope sizes in micrometres, millimetres, centimetres and metres in portrait orientation.

SizeMicrometresMillimetresCentimetresMetres
C0917000 x 1297000 μm917 x 1297 mm91.7 x 129.7 cm0.917 x 1.297 m
C1648000 x 917000 μm648 x 917 mm64.8 x 91.7 cm0.648 x 0.917 m
C2458000 x 648000 μm458 x 648 mm45.8 x 64.8 cm0.458 x 0.648 m
C3324000 x 458000 μm324 x 458 mm32.4 x 45.8 cm0.324 x 0.458 m
C4229000 x 324000 μm229 x 324 mm22.9 x 32.4 cm0.229 x 0.324 m
C5162000 x 229000 μm162 x 229 mm16.2 x 22.9 cm0.162 x 0.229 m
C6114000 x 162000 μm114 x 162 mm11.4 x 16.2 cm0.114 x 0.162 m
C781000 x 114000 μm81 x 114 mm8.1 x 11.4 cm0.081 x 0.114 m
C857000 x 81000 μm57 x 81 mm5.7 x 8.1 cm0.057 x 0.081 m
C940000 x 57000 μm40 x 57 mm4.0 x 5.7 cm0.040 x 0.057 m
C1028000 x 40000 μm28 x 40 mm2.8 x 4.0 cm0.028 x 0.040 m

Please click here to suggest additional units.

Table of Envelope Sizes From C0 to C10 in Imperial & US Customary Units

This table gives width x height for C series envelope sizes in thou, inches, feet and yards in portrait orientation.

SizeThouInchesFeetYards
C036102 x 51063 th36.102 x 51.063 in3.009 x 4.255 ft1.003 x 1.418 yd
C125512 x 36102 th25.512 x 36.102 in2.126 x 3.009 ft0.709 x 1.003 yd
C218031 x 25512 th18.031 x 25.512 in1.503 x 2.126 ft0.501 x 0.709 yd
C312759 x 18031 th12.759 x 18.031 in1.063 x 1.503 ft0.354 x 0.501 yd
C49016 x 12759 th9.016 x 12.759 in0.751 x 1.063 ft0.250 x 0.354 yd
C56378 x 9016 th6.378 x 9.016 in0.531 x 0.751 ft0.177 x 0.250 yd
C64488 x 6378 th4.488 x 6.378 in0.374 x 0.531 ft0.125 x 0.177 yd
C73189 x 4488 th3.189 x 4.488 in0.266 x 0.374 ft0.089 x 0.125 yd
C82244 x 3189 th2.244 x 3.189 in0.187 x 0.266 ft0.062 x 0.089 yd
C91575 x 2244 th1.575 x 2.244 in0.131 x 0.187 ft0.044 x 0.062 yd
C101102 x 1575 th1.102 x 1.575 in0.092 x 0.131 ft0.031 x 0.044 yd

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Table of Envelope Sizes From C0 to C10 - Typography & Plotter Units

This table gives width x height for C series paper sizes in pica, point and HPGL units in portrait orientation.

SizePicaPointHPGL
C0216.6 x 306.42599 x 367736680 x 51880
C1153.1 x 216.61837 x 259925920 x 36680
C2108.2 x 153.11298 x 183718320 x 25920
C376.5 x 108.2918 x 129812960 x 18320
C454.1 x 76.5649 x 9189160 x 12960
C538.3 x 54.1459 x 6496480 x 9160
C626.9 x 38.3323 x 4594560 x 6480
C719.1 x 26.9230 x 3233240 x 4560
C813.5 x 19.1162 x 2302280 x 3240
C99.4 x 13.5113 x 1621600 x 2280
C106.6 x 9.479 x 1131120 x 1600

Our table has used the modern desktop publishing pica and point sizes (1/6th of an inch and 1/72nd of an inch respectively). Click the following links for further background information on the pica and point

HPGL units are length units from Hewlett Packard's printer control language used by printers and plotters. 40 HPGL units = 1 mm and 1016 HPGL units is 1 inch, making the HPGL unit effectively a metric thou.

Please click here to suggest additional units.

Other Sizes