B0 – 1000 × 1414 mm / 39.4 × 55.7 inches

B1 – 707 × 1000 mm / 27.8 × 39.4 inches

B2 – 500 × 707 mm / 19.7 × 27.8 inches

B3 – 353 × 500 mm / 13.9 × 19.7 inches

B4 – 250 × 353 mm / 9.8 × 13.9 inches

B5 – 176 × 250 mm / 6.9 × 9.8 inches

B6 – 125 × 176 mm / 4.9 × 6.9 inches

B7 – 88 × 125 mm / 3.5 × 4.9 inches

B8 – 62 × 88 mm / 2.4 × 3.5 inches

B9 – 44 × 62 mm / 1.7 × 2.4 inches

B10 – 31 × 44 mm / 1.2 × 1.7 inches