B4
There is also a much less common B series. The area of B series sheets is the geometric mean of successive A series sheets. So, B1 is between A0 and A1 in size, with an area of 0.71 m² (). As a result, B0 has one side 1-metre long, and other sizes in the B series have one side that is a half, quarter or eighth of a metre. While less common in office use, it is used for a variety of special situations. Many posters use B-series paper or a close approximation, such as 50 cm×70 cm; B5 is a relatively common choice for books. The B series is also used for envelopes and passports.
North American paper sizes
- Letter×1.46
- Legal×1.15
- Ledger×0.73
- Tabloid×0.73
- ANSI A (letter)×1.46
- ANSI B (ledger)×0.73
- ANSI B (tabloid)×0.73
- ANSI C×0.37
- ANSI D×0.18
- ANSI E×0.09
- ANSI F×0.12
- Statement Half Letter×2.92
- Quarto×1.71
- Foolscap (folio)×1.27
- Super-B×0.55
- Post×0.46
- Crown×0.46
- Demy×0.35
- Medium×0.33
- Broadsheet×0.32
- Royal×0.27
- Elephant×0.21
- Double Demy×0.17
- Quad Demy×0.09
Inch based paper sizes
- Emperor×0.04
- Antiquarian×0.08
- Grand Eagle×0.11
- Double Elephant×0.13
- Atlas×0.15
- Colombier×0.17
- Imperial×0.21
- Double Large Post×0.2
- Princess×0.23
- Cartridge×0.25
- Sheet Half Post×0.3
- Double Post×0.24
- Super Royal×0.27
- Medium×0.32
- Copy Draught×0.43
- Pinched Post×0.5
- Foolscap×0.6
- Small Foolscap×0.62
- Brief×0.63
- Pott×0.73
Metric
- Kilometre (km)2.5×10⁻⁴ x 3.53×10⁻⁴
- Metre (m)0.25 x 0.35
- Decimetre (dm)2.5 x 3.53
- Centimetre (cm)25 x 35.3
- Millimetre (mm)250 x 353
- Micrometre (µm)250,000 x 353,000
- Nanometre (nm)250,000,000 x 353,000,000
- Angstrom (Å)2.5×10⁹ x 3.53×10⁹
British/American
- League5.18×10⁻⁵ x 7.31×10⁻⁵
- Mile (mi)1.55×10⁻⁴ x 2.19×10⁻⁴
- Furlong1.24×10⁻³ x 1.75×10⁻³
- Chain0.01 x 0.02
- Rod (rd)0.05 x 0.07
- Yard (yd)0.27 x 0.39
- Foot (ft)0.82 x 1.16
- Link1.24 x 1.75
- Hand2.46 x 3.47
- Inch (in)9.84 x 13.9
- Line98.43 x 138.98
- Mil (mil)9,842.52 x 13,897.64
- Thou (thou)9,842.52 x 13,897.64
Nautical
- Nautical mile1.35×10⁻⁴ x 1.91×10⁻⁴
- Fathom0.14 x 0.19
Astronomical
- Parsec (pc)8.1×10⁻¹⁸ x 1.14×10⁻¹⁷
- Light year2.64×10⁻¹⁷ x 3.73×10⁻¹⁷
- Astronomical unit (AE)1.67×10⁻¹² x 2.36×10⁻¹²
- Light minute1.39×10⁻¹¹ x 1.96×10⁻¹¹
- Light second8.34×10⁻¹⁰ x 1.18×10⁻⁹