Card Centering Calculator2.1

Card Centering Calculator is the ultimate tool for measuring your card's centering ratios before grading. Whether you collect Pokémon, One Piece, Lorcana, Yu-Gi-Oh!, Magic, baseball, basketball, football, or other trading and sports cards, the app helps you quickly measure centering, compare grading standards, and decide if your card may be worth submitting.

Scan or upload a card image to calculate real-time centering ratios, such as 55/45 or 60/40, and instantly compare the highest potential centering grades from major grading companies including PSA, BGS, SGC, CGC, TAG, and ACE.

Wondering if your card has centering worthy of a Gem Mint 10? Measure it before you submit.

--- Card Scanner With Auto Centering Detection ---
Scan or upload your card and let the app automatically detect the card edges and calculate centering ratios.

--- Precise Ratio Measurements ---
Manually adjust measurement guides on each side of the card for precise centering calculations. Use zoom for ultra-accurate adjustments and fine-tuning.

--- Measure in Pixels, Millimeters, or Inches ---
Switch from percentages to real measurements. View each border's width in pixels, millimeters, or inches to double-check against calipers or calculate centering your own way.

--- Saved Cards ---
Save cards to your collection and come back to them later. Add tags, filter your saved cards, and keep track of cards you may want to grade, sell, trade, or review again.

--- Perspective Fix Tool ---
Correct skewed, angled, bent, or warped card images before measuring. The Perspective Fix tool helps straighten card edges so you can get cleaner and more accurate centering measurements.

--- Grade Comparisons ---
Instantly see the best possible centering grades from PSA, BGS, CGC, SGC, TAG, and ACE as you adjust your card's ratios. Compare grading companies and see how each company's centering standards may affect your card.

--- Front and Back Side Grading ---
Measure centering for both the front and back of your card, since grading standards differ between sides.

--- Pokémon e-Reader Card Mode ---
Measure Expedition, Aquapolis, and Skyridge e-Reader cards correctly. The dot-code strip makes the left and bottom borders wider by design, so e-Reader mode compares the top and right borders the way graders do and saves the setting with each card.

--- Grading Standards Reference ---
View centering standards from PSA, BGS, CGC, SGC, TAG, and ACE in one convenient reference section.

--- Cropping and Image Tools ---
Crop card images, upload from your photo library, scan with the camera, or upload a card image from a URL.

--- Compatible With All Cards ---
Use Card Centering Calculator with TCG cards, sports cards, and other collectible cards, including Pokémon, One Piece, Yu-Gi-Oh!, Lorcana, Magic: The Gathering, baseball, basketball, football, and more.

Why Centering Matters:
Centering plays a major role in determining a card's grade from professional grading companies. Even if a card is otherwise in excellent condition, poor centering can reduce its grade and impact its value. Card Centering Calculator helps you measure centering ratios before submitting cards for grading, giving you more information when deciding which cards to grade, sell, trade, or keep raw.

Note:
Card Centering Calculator focuses on measuring centering ratios. Professional grading companies such as PSA, BGS, CGC, SGC, TAG, and ACE also evaluate other factors, including corners, edges, surface wear, scratches, dents, print quality, and overall condition. This app does not assess those additional grading criteria.

Version History • New: E-Reader card mode. Measure your Pokémon e-Reader cards using the top and right sides
• New (Premium): Show border widths in pixels, millimeters or inches instead of percentages
• iOS 27 support
• Bug fixes and improvements 2.1 6d ago - Added back the manual X, Y, and Z rotation sliders
- Improved the Perspective Fix tool with a magnifying lens for more accurate marker placement on card corners

Thank you everyone for your feedback on version 2.0! 2.0.1 Jul 6 This update adds a brand-new Saved Cards tab, making it easy to save cards and come back to them later.

Scanner improvements:
- Macro lens support for compatible devices
- New Manual Mode for cards that are difficult to scan
- Auto capture when a card is detected and level
- Improved focusing, including tap to focus

Centering Calculator improvements:
- More precise centering lines with smaller adjustments and micro-pixel movement
- New Perspective Fix tool for bent, warped, or skewed card images
- New cropping tool
- Upload card images from a URL

This update also includes new customization settings, general improvements, a better experience on iPad and Mac, and several bug fixes.

Thank you for your continued support and feedback. Good luck with your submissions! 2.0 Jun 28 - Updates for iOS 26 and iPadOS 26!
- Bug fixes
- Improved accessibility features across the app 1.11 09/21/2025 Under-the-hood updates and improvements to ensure the best experience across all devices. 1.10.1 08/01/2025 • ACE is now a supported grading company
• You can zoom in up to 15× for even more precise alignment
• Added new 3D rotation sliders for the X, Y, and Z axes
• Scanned images are now auto-enhanced (fine-tune sharpening in Advanced Settings)
• Various small bug fixes and improvements

Thanks as always for your support and suggestions — keep them coming, and good luck grading! 1.10 06/26/2025 Bug fixes and under the hood updates. 1.9.1 03/15/2025 Fixed an issue where centering lines could reset when manually adjusting them on certain devices. 1.9 03/03/2025 – Added TAG grades and standards
– Improved scanner detection and tips section
- Bug fixes 1.8 02/13/2025 – Updated PSA guidelines to reflect recent changes to PSA 10, 9, 8 and 7.

TAG will be added in the next update! Thank you all for your feedback and support. Keep the suggestions coming! 1.7 02/03/2025 - Added a rotation slider to perfectly align images of cards that are slightly crooked.
- Improved scanner quality for iPhone 11, 12, and 13 Pro models. 1.6 01/27/2025 - Added a higher scanner resolution option.
- Added an option to remove leveling indicators.
- Improved scanner functionality for better performance in low light conditions.
- Fixed bugs.

Thank you all for your suggestions and support. Keep them coming so Card Centering Calculator can continue to improve! 1.5 01/04/2025 - Added SGC as a grading company
- Added leveling indicators and flashlight to the scanner
- Added advanced settings for further customization
- Added sharing features - quickly share your centering results!
- Bug fixes 1.4 12/03/2024 • Automatic border detection—no more need to manually adjust the measuring lines for each side!
• Customizable guide lines—you can now change the colors to match your preferences. 1.3 10/24/2024 - Bug Fixes
- Added control center widget
- Added "Features coming soon" page 1.2 10/22/2024 - Bug fixes
- Card scanning improvements
- Added the ability to upload images from the Files app

More new features are in the works! If you have any suggestions or requests please contact me through the app! 1.1 10/18/2024 1.0 09/17/2024