Everyday
Paper sizes
33 units
Common conversions
All units
| Symbol | Name | Factor relative to mm² |
|---|---|---|
| mm² | Square millimetre | 1 |
| cm² | Square centimetre | 100 |
| m² | Square metre | 1000000 |
| in² | Square inch | 645.16 |
| ft² | Square foot | 92903.04 |
| 4A0 | 4A0 | 3999796 |
| 2A0 | 2A0 | 1999898 |
| A0 | A0 | 999949 |
| A1 | A1 | 499554 |
| A2 | A2 | 249480 |
| A3 | A3 | 124740 |
| A4 | A4 | 62370 |
| A5 | A5 | 31080 |
| A6 | A6 | 15540 |
| A7 | A7 | 7770 |
| A8 | A8 | 3848 |
| B0 | B0 | 1414000 |
| B1 | B1 | 707000 |
| B2 | B2 | 353500 |
| B3 | B3 | 176500 |
| B4 | B4 | 88250 |
| B5 | B5 | 44000 |
| C4 | C4 envelope | 74196 |
| C5 | C5 envelope | 37098 |
| C6 | C6 envelope | 18468 |
| Letter | Letter (US) | 60322.46 |
| Legal | Legal (US) | 76774.04 |
| Tabloid | Tabloid (US) | 120644.92 |
| Ledger | Ledger (US) | 120644.92 |
| Executive | Executive (US) | 49112.805 |
| 4×6 in | Photo 4×6 in | 15483.84 |
| 5×7 in | Photo 5×7 in | 22580.6 |
| 8×10 in | Photo 8×10 in | 51612.8 |