ISO Paper Size Chart

Size	A Series Formats	B Series Formats	C Series Formats
−2	4A0: 1682 × 2378 mm (66.2 × 93.6 inches)
−1	2A0: 1189 × 1682 mm (46.8 × 66.2 inches)
0	A0: 841 × 1189 mm (33.1 × 46.8 inches)	B0: 1000 × 1414 mm (39.4 × 55.7 inches)	C0: 917 × 1297 mm (36.1 × 51.1 inches)
1	A1: 594 × 841 mm (23.4 × 33.1 inches)	B1: 707 × 1000 mm (27.8 × 39.4 inches)	C1: 648 × 917 mm (25.5 × 36.1 inches)
2	A2: 420 × 594 mm (16.5 × 23.4 inches)	B2: 500 × 707 mm (19.7 × 27.8 inches)	C2: 458 × 648 mm (18.0 × 25.5 inches)
3	A3: 297 × 420 mm (11.7 × 16.5 inches)	B3: 353 × 500 mm (13.9 × 19.7 inches)	C3: 324 × 458 mm (12.8 × 18.0 inches)
4	A4: 210 × 297 mm (8.3 × 11.7 inches)	B4: 250 × 353 mm (9.8 × 13.9 inches)	C4: 229 × 324 mm (9.0 × 12.8 inches)
5	A5: 148 × 210 mm (5.8 × 8.3 inches)	B5: 176 × 250 mm (6.9 × 9.8 inches)	C5: 162 × 229 mm (6.4 × 9.0 inches)
6	A6: 105 × 148 mm (4.1 × 5.8 inches)	B6: 125 × 176 mm (4.9 × 6.9 inches)	C6: 114 × 162 mm (4.5 × 6.4 inches)
7	A7: 74 × 105 mm (2.9 × 4.1 inches)	B7: 88 × 125 mm (3.5 × 4.9 inches)	C7: 81 × 114 mm (3.2 × 4.5 inches)
8	A8: 52 × 74 mm (2.0 × 2.9 inches)	B8: 62 × 88 mm (2.4 × 3.5 inches)	C8: 57 × 81 mm (2.2 × 3.2 inches)
9	A9: 37 × 52 mm (1.5 × 2.0 inches)	B9: 44 × 62 mm (1.7 × 2.4 inches)	C9: 40 × 57 mm (1.6 × 2.2 inches)
10	A10: 26 × 37 mm (1.0 × 1.5 inches)	B10: 31 × 44 mm (1.2 × 1.7 inches)	C10: 28 × 40 mm (1.1 × 1.6 inches)

Why ISO Paper Sizes Matter

Having a universal paper size standard ensures compatibility and consistency across printers, papers, and industries. ISO paper sizes are widely used in offices, schools, and printing around the world. This guide helps you easily convert and compare dimensions for A, B, and C series formats.