7 Places to Put Your QR Code That People Actually Scan
From the last slide of a talk to the back of a name badge: where QR codes get scanned, how to size them, and how to measure which placement works.
The best places to put a QR code are where people have a reason to scan and a moment to do it: the last slide of a talk, a name badge, a shop counter or table, product packaging, a property or window sign, an email signature and the back of a paper business card.
- People scan when they have a reason and a pause
- A short label next to the code tells people why to scan
- Size the code for the distance: about one-tenth of the scanning distance
- Use a separate dynamic code per placement to compare results
- Avoid places people pass quickly, like moving vehicles and high billboards
What makes people actually scan a QR code?
People scan a QR code when three things line up: they have a reason, they have a moment, and the code is easy to scan from where they are. Miss one and the code is ignored, no matter how well it is designed.
Reason
Tell people what they get. "Scan to save my contact", "Scan for the full menu" or "Scan to download the slides" works far better than a bare code. A short call to action next to the code is the single easiest improvement you can make.
Moment
Codes get scanned where people are already standing still: waiting in line, sitting at a table, listening to a talk, holding a product. Codes in places people walk or drive past quickly rarely get scanned.
Ease
The code must be large enough for the distance, high contrast, flat and well lit. Phones need to get close enough without awkward stretching. A good rule is to make the code at least one-tenth of the scanning distance: about 2 cm for something held in the hand, 10 cm for a poster read from a meter away.
Test your placements
Before you commit, ask: would I scan this, here, right now? Then pick placements from the list below and measure them with dynamic QR codes.
1. Why put a QR code on the last slide of a talk?
The last slide is on screen while people are seated, attentive and often thinking about how to follow up. A QR code there turns applause into contacts.
What to link
- Your digital business card, so people can save your details.
- The slides or a resource page, which gives people a concrete reason to scan.
- A sign-up form or booking page.
How to make it work
- Label it clearly: "Scan for the slides and my contact".
- Leave it up during questions. That is when most people get their phones out.
- Size it for the back row. If the back row is 15 meters from the screen, the code needs to be large on screen. A code filling roughly a quarter of the slide height is usually enough on a projected screen, but test it from the back of the room.
- Put a short link under the code for people watching a recording or sitting too far back.
Use a dynamic code
If the slides change after the talk, or you reuse the deck, a dynamic QR code lets you update the destination without editing the slide. It also tells you how many people scanned at each talk.
2. Why do QR codes on name badges get scanned?
At events, people are close together and already exchanging names. A badge QR code that opens the wearer's profile replaces swapping paper cards, and the other person saves the contact in one tap.
What to link
- The attendee's digital business card or profile.
- For staff badges, a page explaining their role or how to get help.
How to make it work
- Place the code near the bottom of the badge, where it can be scanned without lifting the badge.
- Keep it at least 2 × 2 cm, dark on light, with a clear margin.
- Add a short label: "Scan to connect".
- Print the name large so people know who they are scanning.
Beyond conferences
Staff badges in shops, hotels and clinics can carry a QR code that opens a feedback form or the staff member's booking page. Event organizers can also use the same badge code for check-in at the door. Organizers can generate a badge with a unique code for every attendee from the registration list.
3. Where should QR codes go on counters and tables?
Counters and tables are prime spots because customers are waiting, paying or sitting down. They have a moment and are within arm's reach.
Good uses
- Restaurant tables: a menu QR code on a table tent, with a dynamic code so prices and dishes can change.
- Cafe counters: WiFi access, a loyalty sign-up or a review page.
- Retail checkouts: product guides, returns information or a newsletter sign-up.
- Reception desks: visitor sign-in, a company profile, or a WiFi code for guests.
Placement tips
- Put the code at eye level or flat on the table, facing the customer, not the staff.
- Keep it out of glare from lights and windows; matte finishes scan better than glossy ones.
- Laminate or use a stand, so it stays flat and clean.
- Label the benefit: "Scan for today's menu" or "Join our WiFi".
Watch out for tampering
Codes in public places can be covered with a sticker pointing somewhere else. Check them regularly, and use a branded frame or label that makes a pasted-over code obvious.
4. How should you use a QR code on product packaging?
Packaging codes get scanned when the customer is holding the product and wants more: instructions, recipes, setup videos, warranty registration or reordering. They work because the product itself is the reason.
Good uses
- Setup guides and videos for products with assembly or configuration.
- Recipes, ingredient sourcing or care instructions.
- Warranty registration and support.
- Reorder pages for consumables.
How to make it work
- Keep the QR code separate from the retail barcode. A checkout scanner reads the EAN-13 or UPC-A barcode; the QR code is for the customer.
- Place it on a flat panel, not across a fold, seam or curve.
- Label it with the benefit: "Scan for the setup video".
- Use a dynamic code. Packaging stays in circulation for months or years, and destinations change.
Size
A code you scan while holding the product needs to be at least about 2 × 2 cm. If the pack is small, choose a short dynamic link so the pattern stays simple and scans at small sizes.
If you also need product barcodes, keep them in a separate spot from the QR code so each has its own quiet zone.
5. Do QR codes work on property signs and window displays?
Yes, as long as they are big enough for the distance. Property boards and shop windows are seen by people who are already curious and often willing to stop.
Good uses
- For-sale and to-let boards: open the listing, a virtual tour or the agent's card.
- Shop windows: opening hours, booking, menus or a current offer when the shop is closed.
- Construction hoardings and site signs: project information and contact details.
Size for distance
Use the one-tenth rule: the code's width should be roughly one-tenth of the distance people scan from. A window read from 1 meter needs about 10 cm; a sign read from 3 meters needs about 30 cm. Our QR code size and placement guide has a full table.
Real estate tip
Agents move the same sign between properties. With a dynamic code, the sign points to whichever listing it is on, and scans per sign show which listings generate interest. See how agents use this in QR codes for real estate.
Avoid
Codes placed above head height, on moving vehicles, or on roadside billboards. People cannot scan safely or quickly enough.
6. Should you put a QR code in your email signature?
Yes, but as a small extra next to a clickable link. Someone reading on a laptop can scan the code with their phone to save your contact directly, while someone reading on a phone just taps the link.
What to include
- A text link to your digital business card, such as "Save my contact".
- A small QR code image, around 80 to 100 pixels square, that opens the same card.
- Your name, title and company as text, so they show even if images are blocked.
Why it helps
Email is where many professional relationships continue. A signature that links to your card means every email carries your latest details, and recipients can save you without copying text into a contact form.
Tips
- Some email clients block images by default, so never rely on the QR code alone.
- Keep the image small so the signature does not dominate short replies.
- For a team, use one signature template so everyone's matches.
The email signature generator builds a signature with your card link and QR code.
7. Why put a QR code on the back of a paper business card?
A QR code on the back of a paper card turns a static card into a link to your always-current digital card. The paper is the introduction; the code delivers details that never go out of date.
How to do it
- Create your digital card and get a dynamic QR code for it.
- Put the code on the back of the card, at least 2 × 2 cm, with a clear margin.
- Add a label: "Scan to save my contact".
- Keep the front simple: name, title, company and logo.
Why dynamic
If your number, title or card address changes, a dynamic code keeps every printed card working. You can print fewer cards and reorder far less often.
Read more on the QR business card page.
How to tell which placement works
Give each placement its own dynamic code, all pointing to the same destination: one for slides, one for badges, one for your counter, one for paper cards. Scan analytics then show which placements drive scans by date and device, so you can drop what does not work. Create codes with the QR code generator; static codes are unlimited on every plan, and dynamic codes are included by plan.
FAQ
How big should a QR code be?
About one-tenth of the scanning distance, with a minimum of around 2 × 2 cm for codes scanned up close. A poster read from one meter needs a code around 10 cm wide.
Should I add a call to action next to my QR code?
Yes. A short label such as "Scan to save my contact" tells people what they get and why it is worth scanning. A bare code gives people no reason.
Where should I not put a QR code?
Avoid places people pass quickly or cannot reach safely: moving vehicles, roadside billboards, high signs and spots with heavy glare. Also avoid placing codes across folds or curved surfaces.
Can I use the same QR code in several places?
You can, but you will only see total scans. Use a separate dynamic code for each placement, all pointing to the same destination, to see which placement works best.
Do QR codes work on screens?
Yes. Codes on slides, TVs and phone screens scan well if they are large enough and the screen is bright. Avoid placing them where screen glare or reflections fall.