Choosing the right flyer size can make or break your marketing campaign. Pick something too small and your message gets lost. Go too big and you blow your printing budget on flyers that end up in the bin. So what size should a flyer be? The honest answer: it depends on how you plan to distribute it, what you want to say, and how much you want to spend.
In this practical guide, we break down the six most common flyer sizes used in 2026, explain when to use each one, and help you match the format to your goals.
The Quick Answer: Standard Flyer Sizes
If you just need a fast answer, here are the most widely used flyer dimensions:
- US Letter: 8.5 x 11 inches (most common in North America)
- A4: 210 x 297 mm / 8.3 x 11.7 inches (international standard)
- A5: 148 x 210 mm / 5.8 x 8.3 inches (the most popular handout size)
- A6: 105 x 148 mm / 4.1 x 5.8 inches (compact, postcard-style)
- DL: 99 x 210 mm / 3.9 x 8.3 inches (fits standard envelopes)
- Half-Letter: 5.5 x 8.5 inches (US equivalent of A5)
Flyer Size Comparison Table
| Size | Inches | Millimeters | Pixels (300 DPI) | Best For |
|---|---|---|---|---|
| A4 / US Letter | 8.3 x 11.7 / 8.5 x 11 | 210 x 297 / 216 x 279 | 2480 x 3508 / 2550 x 3300 | Detailed info, posters, notice boards |
| A5 / Half-Letter | 5.8 x 8.3 / 5.5 x 8.5 | 148 x 210 / 140 x 216 | 1748 x 2480 / 1650 x 2550 | Hand-to-hand distribution, mailers |
| A6 | 4.1 x 5.8 | 105 x 148 | 1240 x 1748 | Postcards, vouchers, club promos |
| DL | 3.9 x 8.3 | 99 x 210 | 1169 x 2480 | Direct mail, takeaway menus, racks |
Breaking Down Each Flyer Size
A4 / US Letter (8.5 x 11 inches)
This is the standard flyer size and the one most people picture when they hear the word “flyer.” It’s the same size as a regular sheet of printer paper, which makes it easy to design, print at home, and pin to notice boards.
Use it when:
- You have a lot of information to share (event programs, real estate listings, service menus)
- You want the flyer to double as a mini poster
- You’re posting on community boards, shop windows, or office walls
- You need space for high-impact imagery
Watch out for: Higher printing costs and the fact that recipients have to fold them to fit in a bag or pocket.
A5 / Half-Letter (5.8 x 8.3 inches)
A5 is half the size of A4, and it’s arguably the most versatile flyer format. It’s big enough to look professional but small enough to hand out efficiently on the street or slip into a magazine.
Use it when:
- You’re doing street distribution or door-to-door drops
- You want a balance between content space and portability
- You’re promoting events, restaurants, or local services
- You need a cost-effective option for large print runs
A6 (4.1 x 5.8 inches)
A6 is roughly postcard-sized. It’s compact, cheap to print in bulk, and people are more likely to keep it because it doesn’t feel like clutter.
Use it when:
- Your message is short and punchy (one offer, one date, one CTA)
- You’re distributing thousands of units on a tight budget
- You want a flyer that fits in a wallet or pocket
- You’re running club nights, food trucks, or coupon campaigns
DL (3.9 x 8.3 inches)
The DL flyer is long and narrow, designed to fit perfectly in a standard business envelope without folding. It’s a favorite for direct mail and rack displays in hotels and tourist offices.
Use it when:
- You’re sending direct mail campaigns
- You want flyers to fit standard brochure racks
- You’re creating takeaway menus or travel guides
- You need a sleek, modern format that stands out from rectangles
How to Choose the Right Flyer Size
Forget the “one size fits all” mindset. The right size depends on three practical factors.
1. Your Distribution Method
- Hand-to-hand on the street: A5 or A6. Anything bigger gets crumpled or refused.
- Direct mail: DL or A5. They fit envelopes without folding.
- Notice boards and shop windows: A4. You need visibility from a distance.
- Inserts in magazines or bags: A5 or A6. Lightweight and unobtrusive.
- Brochure racks: DL. Built for the format.
2. Your Content Volume
Be honest about how much you actually need to say:
- One headline + one offer + one CTA = A6 or DL
- A short story with 2 to 3 visuals = A5
- Detailed info, multiple sections, or a program = A4
3. Your Budget
Smaller flyers cost less per unit, which lets you print more and reach a wider audience. As a rough guide:
- Tight budget, mass distribution: A6
- Balanced budget, targeted audience: A5 or DL
- Premium feel, fewer recipients: A4 on heavy stock
Design Specs You Shouldn’t Skip
Whatever size you pick, your file needs to be print-ready. Here’s the technical checklist:
- Resolution: 300 DPI minimum for print
- Color mode: CMYK (not RGB) for professional printing
- Bleed: Add 3 mm (0.125 inches) on each side to avoid white edges
- Safe zone: Keep important text at least 5 mm inside the trim line
- File format: PDF/X-1a is the print industry standard
Custom and Less Common Flyer Sizes
Standard sizes are cheaper and faster to produce, but custom shapes can help you stand out:
- Square flyers (5 x 5 inches or 4.72 x 4.72 inches): Great for social-media-style aesthetics
- Long flyers (3.67 x 8.5 inches): Slim, modern, and unusual
- Tabloid / A3 (11 x 17 inches or 297 x 420 mm): Half flyer, half poster
Just keep in mind that custom sizes usually cost more and may not fit standard envelopes or display racks.
FAQ
What is the best size for a flyer?
For most businesses, A5 (148 x 210 mm) or US Letter (8.5 x 11 inches) are the best all-around choices. A5 wins for street distribution and budget-friendly campaigns, while Letter / A4 wins when you need to communicate more detail or use the flyer as a small poster.
Should flyers be A4 or A5?
Use A4 if your flyer needs to act like a poster or contain a lot of information. Use A5 if you’re handing flyers out in person, mailing them, or printing in large quantities. A5 is more cost-effective and easier to carry, which is why it’s the go-to size for most local marketing campaigns.
How big is a 5×7 flyer?
A 5 x 7 inch flyer measures 127 x 178 mm. It sits between A6 and A5, making it a popular choice for invitations, save-the-dates, and premium event promos.
How big is a 4×6 flyer?
A 4 x 6 inch flyer measures roughly 102 x 152 mm, very close to A6. It’s the standard postcard size in the US and works well for short, punchy messages and direct mail.
What size should a flyer be in pixels?
At 300 DPI (the print standard), an A4 flyer is 2480 x 3508 pixels and a US Letter flyer is 2550 x 3300 pixels. For A5 use 1748 x 2480 pixels, and for A6 use 1240 x 1748 pixels.
Final Thoughts
There’s no single perfect flyer size, but there is a perfect size for your campaign. Match the format to how people will receive it, how much you need to say, and how many you can afford to print. Get those three things right and your flyer will do its job, whatever its dimensions.
Need help designing a flyer that converts? The team at Quarter Rest Studios builds print and digital assets that look great at every size. Get in touch to start your next project.