Card Centering Calculator Pro
TCG & Sports Grading Tool
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Card Centering Calculator Pro is the easiest way to measure your card's centering ratios before submitting for professional grading. Whether you collect Pokémon, Yu-Gi-Oh!, One Piece, Lorcana, Magic: The Gathering, or sports cards like baseball, basketball, and football, the app calculates precise centering measurements (e.g., 55/45 or 60/40) and shows you the highest possible grades from major grading companies, including PSA, BGS, CGC, SGC, TAG, and ACE.
Key Features
— Camera & Manual Measurement
Snap a photo of your card or manually place measurement guides on each side. Use the zoom feature for ultra-precise adjustments.
— Grade Comparisons
Instantly compare the best possible centering grades from PSA, BGS, CGC, SGC, TAG, and ACE as you adjust your measurements. Find the grading company that will give your card the highest centering score.
— Front & Back Side Grading
Measure centering for both sides of your card. Different grading companies apply different centering standards to each side.
— Grading Standards Reference
A built-in handbook covering the official centering requirements from PSA, BGS, CGC, SGC, TAG, and ACE — all in one place.
— Compatible With All Cards
From TCG cards like Pokémon, One Piece, Yu-Gi-Oh!, Lorcana, and Magic: The Gathering to sports cards like baseball, basketball, and football, this app works with any card you need to measure.
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Why Centering Matters
Centering is one of the most important factors in a card's professional grade. Even a card in perfect condition can receive a lower grade and lose significant value due to poor centering. Card Centering Calculator Pro helps you measure centering ratios accurately, so you can make informed decisions before spending money on grading submissions.
Who Should Use Card Centering Calculator Pro
Collectors: Make sure your cards meet grading standards before submitting, saving time and money.
Sellers & Traders: Verify centering to maximize the value of your cards before listing or trading.
Buyers: Assess centering on potential purchases to avoid investing in cards that won't grade well.
Note: Card Centering Calculator Pro measures centering ratios only. Professional grading companies like PSA, BGS, CGC, SGC, TAG, and ACE also evaluate edges, corners, surface scratches, and overall condition. This app does not assess those additional factors.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Joseph Stein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Joseph Stein
- Size
- 138.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 17 more
- English, Dutch, French, German, Hindi, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Thai, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime $29.99
- Yearly $11.99
- Yearly $19.99
- Copyright
- © 2026 Joseph Stein