A-series reference
A6 paper size (105 × 148 mm → 4.13 × 5.83 in)
A6 has nominal trimmed dimensions of 105 × 148 mm, approximately 4.13 × 5.83 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.
A6 is a compact format for postcards, thank-you notes, and quick inserts. Use the details below for rounded inch conversions, bleed and safe-zone recommendations, and efficient 4-up layouts on A4 or US Letter printers.
Dimensions
- Millimeters: 105 mm × 148 mm
- Inches: 4.13 in × 5.83 in
- Area: about 0.01554 m² (24.1 in²), one quarter of A4
- Ratio: 1:sqrt(2), four A6 cards tile perfectly on one A4 sheet
Print and layout tips
Use a 4-up template on A4 or Letter, add 3 mm bleed plus crop marks, and keep key text inside a 4–5 mm safe zone so trimming stays consistent.
Popular uses
Postcards and cards
Thank-you notes, holiday cards, and postcards that stay lightweight for mailing.
Notes and inserts
Great for quick notes, product inserts, and pocket guides without bulky paper waste.
A6 on A4
Four A6 cards fit on one A4; print, trim on crop marks, and keep the aspect ratio intact.
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
A6 is 105 × 148 millimeters, approximately 4.13 × 5.83 inches. It is one quarter the area of A4 and keeps the 1:sqrt(2) aspect ratio.
Add at least 3 mm bleed on every side and keep text 4–5 mm inside a safe zone. The trimmed size should still be 105 × 148 mm.
Use a 4-up layout on A4 or Letter, include crop marks, and leave 3 mm bleed. After printing, trim along the marks to keep consistent edges.
Sources and calculation notes
A6 has nominal trimmed dimensions of 105 × 148 mm, approximately 4.13 × 5.83 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: The mm dimensions are nominal ISO trimmed sizes; inch values are rounded. Add bleed or printer margins separately.
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.