C6 Envelope Size
C6 measures 114 × 162 mm (4.49 × 6.38 in). It is the ISO C envelope for an A6 card flat, or an A4 sheet folded twice, sitting between A6 and B6.
C6 measures 114 millimetres wide and 162 millimetres tall.
C6 Dimensions in Each Unit
C6 is 114 × 162 mm, which is 11.4 × 16.2 cm or 4.49 × 6.38 in. It is C5 cut in half.
| Unit | Width | Height | Width × height | Copy |
|---|---|---|---|---|
| Millimetres (mm) | 114 | 162 | 114 × 162 mm | |
| Centimetres (cm) | 11.4 | 16.2 | 11.4 × 16.2 cm | |
| Metres (m) | 0.114 | 0.162 | 0.114 × 0.162 m | |
| Inches (in) | 4.49 | 6.38 | 4.49 × 6.38 in | |
| Feet (ft) | 0.37 | 0.53 | 0.37 × 0.53 ft | |
| Points (pt) | 323 | 459 | 323 × 459 pt | |
| Picas (pc) | 26.9 | 38.3 | 26.9 × 38.3 pc | |
| Pixels at 72 DPI | 323 | 459 | 323 × 459 px | |
| Pixels at 150 DPI | 673 | 957 | 673 × 957 px | |
| Pixels at 300 DPI | 1346 | 1913 | 1346 × 1913 px | |
| Pixels at 600 DPI | 2693 | 3827 | 2693 × 3827 px |
Pixel counts follow from the resolution: pixels = millimetres ÷ 25.4 × DPI. More on the DPI and pixels page.
C6 Shape and Area
| Aspect ratio | 1 : 1.421 (√2) |
|---|---|
| Area | 0.0185 m² · 18,468 mm² |
| Diagonal | 198.1 mm · 7.8 in |
| ISO 216 tolerance | ± 1.5 mm (114 mm side) · ± 2 mm (162 mm side) |
| Governing standard | ISO 216:2007 |
C6 to Scale
C6 is half of C5 and folds in half to C7. Put C6 next to another size in the comparison tool.
Frequently Asked Questions
What size is a C6 envelope?
C6 is 114 by 162 mm, or 4.49 by 6.38 inches.
What fits in a C6 envelope?
An A6 card flat, an A5 sheet folded once, or an A4 sheet folded twice.
Which is bigger, C5 or C6?
C5 is the bigger of the two, at 162 × 229 mm against 114 × 162 mm for C6. It has twice the area, so two C6 envelopes cover one C5.
Envelope Sizes
✓ Dimensions per ISO 216:2007; unit values derived by formula. Reviewed . Editorial Process →