Standard Conference Badge Sizes in Inches, mm and cm
Direct answer: there is no single universal standard, but 4×3 inches and 4×6 inches are the most common conference badge formats in the US. A7 and A6 are common international alternatives. Choose the smallest format that keeps the name prominent, leaves room for required fields, and matches the holder's stated insert and visible-window sizes.
Conference badge size conversion table
Dimensions below describe the finished paper badge or insert. Orientation can be portrait or landscape.
| Size name | Inches | Millimetres | Centimetres | Best for | Typical use |
|---|---|---|---|---|---|
| 4×3 | 4 × 3 in | 101.6 × 76.2 mm | 10.16 × 7.62 cm | Simple badges: name + company + short role | Day events, meetups, quick check-in |
| 4×6 | 4 × 6 in | 101.6 × 152.4 mm | 10.16 × 15.24 cm | More info: big name + role + QR + sponsors | Conferences, multi-day events |
| A7 | 2.91 × 4.13 in | 74 × 105 mm | 7.4 × 10.5 cm | Minimalist design, smaller lanyard holders | UK/EU conferences and exhibitions |
| A6 | 4.13 × 5.83 in | 105 × 148 mm | 10.5 × 14.8 cm | Roomy layout: easy readability + QR + branding | UK/EU "classic" conference pass size |
Badge, insert, holder and visible-window sizes are different
A holder sold as “A6” can still have a smaller pocket or visible area. Check the supplier's measurements and use the badge holder size guide before designing or ordering stock.
- Badge size: the finished printed piece; for a holder system, this is usually the insert.
- Insert size: the paper or card that must fit inside the pocket.
- Holder size: the holder's outside dimensions, including seams, clips and slots.
- Visible-window size: the area not hidden by the holder border or slot. Keep names, codes and logos inside this area with extra safe space.
Choose a size by badge content
| Content requirement | Practical starting point | Why |
|---|---|---|
| Name and company only | 4×3 or A7 | Enough space for a strong name without excess bulk. |
| Name, company and role | 4×3, A7 or larger | Works when roles are short and the name remains dominant. |
| Attendee type or access level | 4×6 or A6 | Leaves a separate, visible zone for speaker, staff or VIP status. |
| QR code or barcode | 4×6 or A6 | Provides room for the code's quiet area without shrinking the name. |
| Sponsor logos plus attendee details | 4×6 or A6 | Supports branding while preserving a readable information hierarchy. |
4×3 versus 4×6: 4×3 is usually sufficient for a straightforward networking badge. Move to 4×6 when the badge must carry codes, access details, several logos or more than three attendee fields. A6 is close to 4×6 in practical capacity; A7 is smaller than 4×3. For recommendations by event type, compare the event badge size guide.
Design and print-fit checks
- Choose a conference badge template made for the selected orientation and information hierarchy.
- Keep critical content inside the holder's visible window and the printer's safe area.
- Match A4 or US Letter paper to the chosen layout and follow the paper and cardstock guide.
- Print one page at 100% or “actual size,” then place an insert in the real holder.
- For fonts, contrast, long names and spacing, see how to design professional conference badges.
- If badges will be produced at the venue, plan the exceptions and reprints with the onsite badge printing guide.
The companion conference badge dimensions specification covers precise conversions, print safe areas and holder-fit notes in more technical detail.
Generate print-ready badges from attendee data
Once you've chosen a conference badge size, the rest is basically a repeatable workflow:
- Prepare your attendee list (CSV/XLSX).
- Choose a badge template for your size (4×3, 4×6, A7, A6, inserts).
- Map columns (Name, Company, Role, QR value, etc.).
- Export a print-ready PDF.
If you want the "do it now" version: use BadgeFlow to import your spreadsheet and generate a print-ready PDF for the badge size you picked.
Conference badge size checklist
- Do we already have badge holders? If yes, confirm maximum insert size.
- What must the badge include: name only / role / QR / sponsor logos?
- Pick size: 4×3 / 4×6 (US-style) or A7 / A6 (UK/EU-style).
- Pick orientation: portrait (most common) vs landscape (works well for 4×3).
- Confirm paper size — for cost-saving options see printing event badges on a budget.
- Print one test page with scaling set to 100%.
Conference badge size questions
What is the standard badge size?
There is no universal standard across every badge type. For event and conference badges, 4×3 and 4×6 inches are common US formats, while A7 and A6 are common international formats.
What is the standard conference badge size?
The usual shortlist is 4×3 inches for simpler badges and 4×6 inches for more content. A7 and A6 serve similar compact and large-format roles for metric paper and holder systems.
What size is a lanyard badge?
Lanyard badges vary. 4×3, 4×6, A7 and A6 are all used. The correct size is the holder's maximum insert size—not its outside measurement—and important content must fit inside the visible window.
Is 4×6 better than 4×3 for conferences?
If you need big names, QR codes, access info, and sponsor branding, 4×6 is easier to read and more forgiving. If your badge content is minimal, 4×3 looks clean and feels lighter.
What is the standard badge size in mm or cm?
4×3 inches is 101.6×76.2 mm or 10.16×7.62 cm. 4×6 inches is 101.6×152.4 mm or 10.16×15.24 cm. A7 is 74×105 mm or 7.4×10.5 cm; A6 is 105×148 mm or 10.5×14.8 cm.
Is A6 the "conference pass" size in the UK?
It's certainly one of the most common UK/EU event pass formats because it gives plenty of room for readable names and scannable codes. Just make sure your holder's insert pocket truly matches A6 dimensions.
What's the difference between badge holder size and insert size?
The holder is the plastic wallet; the insert is the paper badge you print. Many holders list a "maximum insert size" that can be slightly smaller than the named holder size.
How do I make a print-ready PDF for my chosen badge size?
Import your attendee list into BadgeFlow, choose a template that matches your badge size, map your spreadsheet columns, then export a print-ready PDF. If you're pulling data from a ticketing platform, see how to print badges from Eventbrite or How to Print Name Badges from Bizzabo | print badges from Universe.com.