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Qr code

What is the Best Size for a QR Code?

October 27, 2024
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Whether you're in retail, real estate, marketing, or event management—QR codes have become a key tool for seamless engagement. However, choosing the right size for a QR code is a challenge many businesses face. A QR code that’s too small might be hard to scan, while one that’s too large could take up unnecessary space. Industries like retailers might use them for product packaging, real estate agents for virtual property tours, and marketers for digital campaigns. Finding the right balance is crucial to ensuring these codes are scannable and effective. But, how big should they be? And how many possible QR codes are there to fit all these varying needs?

Let’s find out how to size QR codes for maximum performance in any business context.

What size a qr code should be

When considering the qr code dimensions, the minimum size for a QR code is 2 x 2 cm (0.8 x 0.8 inches). However, you can make your QR code as large as needed, as long as the image quality remains high. High-resolution images prevent the pixels from getting blurry, ensuring smooth scanning.

Generally, businesses should base their decision on where the QR code will be placed and how far people will be when scanning it. For example, a QR code on a business card should be smaller, while one on a billboard should be significantly larger to accommodate the distance.

qr code size billboard vs business cards

How many pixels a qr code should have

The qr code size in pixels will determine how crisp and clear your code appears. As a rule of thumb, the minimum pixel ratio for a QR code should be 38 x 38 pixels. This is a good starting point for codes that will be scanned up close. If the QR code is intended for larger prints or will be scanned from a distance, a higher resolution is required to maintain scannability

Do We Really Need to Consider the Size of the QR Code?

Absolutely! QR code size directly affects how easy it is to scan. Choosing the wrong size can lead to missed opportunities for engagement. If the code is too small, it might be hard to scan; too large, and it might take up unnecessary space. A QR code dimensions guide will help you avoid errors in sizing and ensure optimal interaction with your audience.

How Big Does a QR Code Need to Be for Printing?

The ideal size of a QR code for printing depends on where it will be displayed. For example, for how large a qr code needs to be on a billboard, it’s recommended to maintain a ratio of 1:10 between the size of the code and the distance at which it will be scanned. For instance, if your QR code is placed 10 meters away, it should be at least 1 meter wide for optimal scannability.

maximun size qr code

How Small Can a QR Code Be?

The smallest size for a QR code that can still be scanned is 2 x 2 cm. However, this is only feasible for short distances, such as codes on business cards or product packaging. The qr code minimum size varies depending on the amount of data encoded and where the QR code will be used, but keeping it above 2 x 2 cm ensures better scanning results.

minimun qr code size

QR Code Minimum Size in 2024

As we move into 2024, QR codes continue to evolve with new technologies and creative designs. It’s important to know the qr code minimum size requirements for different use cases to ensure they remain scannable across various platforms and devices.

Micro QR Code

For those tight on space, a micro QR code offers a compact alternative. These codes can be as small as 11 x 11 modules, making them ideal for small products or spaces where traditional QR codes wouldn’t fit.

Micro QR Code

Ideal QR Code Size for a Business Card

The ideal qr code size for a business card is around 0.8 x 0.8 inches. It’s small enough to fit within the design but large enough to be scanned easily. Ensuring a high-resolution image and a clean design is crucial for business cards since people will likely scan the code up close.

qr code size business card

QR Code Shapes

A common misconception is that QR codes must always be square. However, can QR codes be different shapes? Yes, they can! By using creative templates, businesses can design qr code shapes like circles or rectangles, offering flexibility in design while maintaining the scannability of the functional code.

Square QR Codes

Traditional QR codes are square because it’s the most efficient shape for encoding data. But do QR codes have to be square? Technically, no. However, the square format is the most reliable when it comes to ensuring the modules are accurately read by scanners.

Rectangle QR Codes

Rectangular QR codes are less common but can be used in specific scenarios, such as fitting into narrow spaces on product packaging. This type of code, known as an iQR code, provides more flexibility in design but must be carefully tested to ensure scannability.

Circle QR Codes

Circle QR codes are a creative option for brands looking to stand out. While the functional parts of the QR code are still arranged in a square, the outer design can take a circular shape, offering a unique visual element.

qr code shape

FAQs

Why Are QR Codes Typically Black and White?

The traditional black and white color scheme provides the best contrast, making it easier for scanners to read the code. However, brands are free to use color variations, as long as the contrast is high enough for the code to be scannable.

Is a White Background Necessary for QR Codes?

QR codes do not necessarily need a white background, but there should be a high contrast between the code and the background for optimal scanning. Darker colors should be used for the code itself, and lighter colors for the background.

How Much Margin Should You Leave Around a QR Code?

A minimum of 0.25 inches of white space, known as the "quiet zone," should be maintained around the QR code. This ensures that the scanning software recognizes the entire code without interference from surrounding elements.

Can I Use My Apple Wallet Business Card on All Devices?

Yes, your Apple Business Card is compatible with iPhones, Apple Watches, and other Apple devices. You can also share it digitally with non-Apple users.

Frequently Asked Questions

If you are hesitating, do not worry - we are here to explain everything you might want to know. Let us help!

  • A digital business card is a modern, virtual way to share your contact details instantly using QR codes, NFC, or a simple link. Unlike traditional paper cards, a digital business card allows you to update your information in real-time, add interactive elements, and reduce environmental waste.

  • Your digital business card should contain your full name, job title, company, and essential contact details such as email and phone number. You can also add social media links, communication channels like WhatsApp or Calendly, custom buttons, and even video content. With KADO, you can fully customize your card’s design, including colors, company branding, and avatars, ensuring a professional and engaging digital presence.

  • Yes! KADO offers a free version that allows you to design your card from scratch, add links, and share it digitally with ease. The free plan includes essential features, while advanced customization options such as color themes and premium integrations are available in paid tiers. You may create your digital business card for free here..

  • Every KADO digital business card automatically includes a QR code that can be scanned for instant sharing. You can easily find your QR code in the app under the "Exchange" screen or access it through your web profile. If you want to learn more about creating a QR code business card, visit our website.

  • There are many options, but KADO stands out due to its unique features and enterprise capabilities:

    • It supports video, personalized buttons, and links—even in the free tier.
    • It integrates natively with HubSpot, Salesforce, and Microsoft Dynamics for seamless contact management.
    • It offers full design customization, including colors, logos, and company branding.
    • It is built for enterprises, offering advanced security, role-based access control, and an admin dashboard for managing team-wide digital business cards.

  • Absolutely. KADO takes security seriously by using encrypted cloud storage, restricting access through role-based permissions, and ensuring there are no public IPs that expose your data. Additionally, KADO complies with industry-leading security standards, including SOC 2 and GDPR, to protect your business and personal information at all times.

  • Yes! KADO is built with enterprises in mind, offering solutions tailored to businesses of all sizes. It provides centralized contact management, team-wide card distribution, and role-based permissions to ensure that sensitive company data remains protected. Administrators can also use a user-friendly dashboard to manage employees’ digital business cards efficiently.

  • KADO offers NFC-enabled digital business cards that allow you to share your contact details instantly by tapping your card on any NFC-compatible smartphone. Unlike traditional business cards, these NFC cards eliminate the need for scanning QR codes or manually entering contact details. You can request your NFC Business Card directly through our website.

  • No, KADO works seamlessly on both mobile and desktop browsers, allowing you to share your contact details without requiring an app. However, for enhanced functionality, KADO also offers a mobile app where you can store your card in an in-app wallet, quickly access your QR code, and share your card even without an internet connection.

  • You can share your KADO digital business card in multiple ways, making it easier to connect with others. The most common methods include displaying your QR code for scanning, sharing your unique link via email or text, or using an NFC-enabled card. The best part is that your recipient does not need an app to receive or save your contact details.

  • Yes, KADO offers seamless CRM integrations to enhance your workflow. KADO CRM integrations include HubSpot, Salesforce, and Microsoft Dynamics, allowing you to sync contacts and track interactions automatically. Additionally, KADO supports Zapier, enabling integration with over 100 other tools, making it an excellent fit for businesses that rely on automation.

  • Yes! If you have saved your digital business cards in your mobile wallet or as widgets on your device, you can still share your contact details even without an internet connection. This ensures that you are always ready to network, whether you are at an event, on a plane, or in an area with poor connectivity.

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