What are the standard paper and envelope sizes?
Standard UK Paper Sizes
Sheet Size | Millimetres |
A0 | 821 x 1189 |
A1 | 594 x 841 |
A2 | 420 x 594 |
A3 | 297 x 420 |
A4 | 210 x 297 |
A5 | 148 x 210 |
A6 | 105 x 148 |
A7 | 74 x 105 |
Standard UK Envelope Sizes
Size | Millimetres | Fits sheet sizes |
C4 | 229 x 342 | Takes A4 sheets flat |
C5 | 162 x 229 | Takes A5 sheets flat or A4 folded once |
C6 | 114 x 162 | Takes A6 or A5 folded once |
DL | 110 x 220 | Takes A4 folded twice into thirds |
C7 | 81 x 162 | Takes A7 or A6 folded once |