B Paper Sizes

The B series paper sizes are defined by the ISO 216 standard. B sizes are geometric means between consecutive A sizes, providing intermediate sizes for when A sizes are not suitable.

B01000 × 1414mm B1707 × 1000mm B2500 × 707mm B3353 × 500mm B4250 × 353mm B5176 × 250mm B6125 × 176mm B788 × 125mm B862 × 88mm B944 × 62mm B1031 × 44mm B1122 × 31mm B1215 × 22mm B1311 × 15mm B0+1118 × 1580mm B1+720 × 1020mm B2+520 × 720mm

All B Paper Sizes Dimensions

Size	Width × Height (mm)	Width × Height (in)	Width × Height (cm)
B0	1000 × 1414	39.37 × 55.67	100.00 × 141.40
B1	707 × 1000	27.83 × 39.37	70.70 × 100.00
B2	500 × 707	19.69 × 27.83	50.00 × 70.70
B3	353 × 500	13.90 × 19.69	35.30 × 50.00
B4	250 × 353	9.84 × 13.90	25.00 × 35.30
B5	176 × 250	6.93 × 9.84	17.60 × 25.00
B6	125 × 176	4.92 × 6.93	12.50 × 17.60
B7	88 × 125	3.46 × 4.92	8.80 × 12.50
B8	62 × 88	2.44 × 3.46	6.20 × 8.80
B9	44 × 62	1.73 × 2.44	4.40 × 6.20
B10	31 × 44	1.22 × 1.73	3.10 × 4.40
B11	22 × 31	0.87 × 1.22	2.20 × 3.10
B12	15 × 22	0.59 × 0.87	1.50 × 2.20
B13	11 × 15	0.43 × 0.59	1.10 × 1.50
B0+	1118 × 1580	44.02 × 62.20	111.80 × 158.00
B1+	720 × 1020	28.35 × 40.16	72.00 × 102.00
B2+	520 × 720	20.47 × 28.35	52.00 × 72.00