B-series reference
B5 paper size (176 × 250 mm → 6.93 × 9.84 in)
B5 has nominal trimmed dimensions of 176 × 250 mm, approximately 6.93 × 9.84 inches.
Maintained by mmtoinches.im · Updated
NIST describes the standard inch as exactly equivalent to 25.4 mm
. NIST length definition. ISO 216 — A and B series paper sizes. Method and limitations.
B5 is a favored trim for books, notebooks, and mid-size brochures. Use the inch conversions, binding margins, and bleed tips below to prep clean layouts that stay readable and portable.
Dimensions
- Millimeters: 176 mm × 250 mm
- Inches: 6.93 in × 9.84 in
Print and binding tips
For perfect-bound or stitched books, keep 10–15 mm gutter, 8–10 mm outer margin, and 3 mm bleed for full-bleed designs. Export as PDF or 300 dpi images to keep text sharp.
Common uses
Trade books
Comfortable reading size that reduces page count compared to A5 while remaining compact.
Notebooks and journals
Roomy lines for handwriting without the bulk of A4; common for academic and professional notes.
Mid-size brochures
Brochures or catalogs that need more layout space than A5 but easier handling than A4.
Print-resolution, bleed and margin examples are starting points, not ISO paper-size requirements. Follow the printer or publisher’s specifications; vector PDF content does not have a single image DPI.
Frequently Asked Questions
B5 is 176 × 250 millimeters, approximately 6.93 × 9.84 inches. It uses the 1:sqrt(2) aspect ratio and sits between A4 and A5 in size.
B5 offers more room than A5 for longer lines of text while staying more portable than A4. It balances readability, weight, and printing cost for trade books and journals.
Keep at least 10–15 mm inner (gutter) margin for binding, 8–10 mm outer margin for readability, and add 3 mm bleed if you have full-bleed elements.
Sources and calculation notes
B5 has nominal trimmed dimensions of 176 × 250 mm, approximately 6.93 × 9.84 inches.
Method: Divide millimeters by 25.4 to obtain inches. The factor is exact; displayed decimal values are rounded. Fractional inches are rounded to the selected denominator.
Scope: These are ISO B5 dimensions. JIS B5 is 182 × 257 mm; check which convention your printer or product uses.
Content maintained by mmtoinches.im. Updated and reference notes reviewed . How we calculate and present measurements. Sources support the stated definitions; examples and calculators are not certification of a product or compliance with a standard.