RuledSheet

B4 paper size

ISO B4 is 250 × 353 mm (9.84 × 13.90 in), between A4 and A3. JIS B4, common on Japanese copiers, is 257 × 364 mm.

B4
Millimetres250 × 353 mm
Centimetres25 × 35.3 cm
Inches9.84 × 13.9 in
PDF points (1/72 in)708.66 × 1000.63 pt
Pixels at 72 dpi709 × 1001 px
Pixels at 150 dpi1476 × 2085 px
Pixels at 300 dpi2953 × 4169 px
B3B4B5Legal
Drawn to the same scale.
B4 next to its neighbours
SizemminchesDifference from B4
B3353 × 50013.9 × 19.69Twice the area
B4250 × 3539.84 × 13.9—
B5176 × 2506.93 × 9.84Half the area
US Legal215.9 × 355.68.5 × 14-34.1 mm wide, +2.6 mm tall
JIS B4
Millimetres257 × 364 mm
Centimetres25.7 × 36.4 cm
Inches10.12 × 14.33 in
PDF points (1/72 in)728.5 × 1031.81 pt
Pixels at 72 dpi729 × 1032 px
Pixels at 150 dpi1518 × 2150 px
Pixels at 300 dpi3035 × 4299 px

What B4 is used for

  • Newspapers and posters
  • Copier paper in Japan (JIS B4)
  • Envelopes for C4 documents

Scaling A4 to B4

Enlarging A4 to ISO B4 is about 119%; reducing A3 to B4 is about 84%.

Questions

How big is B4 in inches?

ISO B4 is 9.84 × 13.90 in; JIS B4 is 10.12 × 14.33 in.