Pokémon Card Grade Calculator — Estimate Your PSA Grade
Upload a photo and our AI grade calculator scores your card the way PSA does — centering, corners, edges, and surface — then returns a predicted 1–10 grade with subgrades. The fastest free PSA grade estimator and grade checker for any Pokémon card.
- 1 Upload a card photo
- 2 Get an AI grade in ~2s
- 3 Decide what's worth submitting
1–10
Predicted Grade
4
Subgrades
2 Sec
Calculation
Free
Grade Checker
More Than a Calculator — A Full Grade Breakdown
A real PSA grade isn't one number; it's four. Our grade estimator scores each category and shows you exactly where points are lost, with a visual map of every detected defect.
PSA-Standard Scoring
The calculator grades against PSA's exact criteria — centering, corners, edges, surface — and combines them into a predicted overall grade on the 1–10 scale.
Per-Category Subgrades
See individual scores for each attribute, just like a BGS subgrade card, so you understand which flaw is capping your grade.
Centering Measurement
Precise front and back centering percentages — the single most common reason Pokémon cards miss a PSA 10.
Defect Heat Map
A visual overlay highlights exactly where the AI detected whitening, scratches, print lines, or soft corners on your card.
Grade Checker for Any Card
Works as a grade checker app for English and Japanese Pokémon cards across every set and era, vintage holos to modern alt-arts.
Confidence Range
Each prediction includes a confidence range so you know whether a card is a lock for its grade or a borderline case worth a closer look.
Use cases
Who Uses CardMintAI?
Discover how different professionals use CardMintAI
Collectors & Hobbyists
Assess Card Conditions Before Grading
Save time and money by identifying high-value cards to prioritize for grading. Get instant AI grading to determine the potential grade of your cards before submitting them to official grading services.
Resellers & Dealers
Generate Grading Reports for Sales
Boost sales by showcasing AI-backed grading reports alongside your card listings. Provide potential buyers with detailed grading reports, increasing the credibility of your listings.
Marketplace Sellers
Integrate Grading for Product Listings
Increase buyer confidence with consistent, AI-generated grading reports. Integrate AI grading directly into your marketplace listings, allowing buyers to view card conditions instantly.
Grading Pre-Checkers
Evaluate Card Quality Before Submitting
Avoid unnecessary grading fees by assessing card condition early. Use AI to pre-check cards and get a sense of their grading potential before submitting to PSA/BGS.
Investment Groups
Track Grading History and Resale Value
Leverage historical data to identify undervalued cards with high grading potential. Monitor card grading history and predicted resale value to make informed investment decisions.
Developers & Integrators
Build Custom Grading Workflows with the API
Automate grading at scale and embed grading reports in your own platform. Use the CardMintAI API to integrate AI-powered card grading directly into your marketplace, app, or internal tools.
Popular Grading Tools
Pay Less Than a Single PSA Fee
Most collectors grade in bursts before a submission — so start with pay-once credit packs that never expire, or subscribe monthly if you grade all the time. Either way it's a fraction of one PSA fee.
Collector
- 60 gradings/month
- Batch grading (up to 10)
- API access
- Analytics dashboard
- Priority support
Master
- 150 gradings/month
- Everything in Collector
- Batch grading (up to 10)
- Dedicated support
- Custom integrations
Pay-Once Credit Packs — Never Expire
Only grade when you're prepping a submission? Skip the subscription. Buy credits once, use them whenever — they never expire and unlock full subgrade reports instantly. 1 credit = 1 grade.
Explore Credit Packs →Frequently Asked Questions
Is there a Pokémon card grade calculator?
Yes. CardMintAI is a free Pokémon card grade calculator: upload a photo and the AI scores centering, corners, edges, and surface, then returns a predicted PSA grade from 1 to 10 with individual subgrades — in about two seconds.
How does the PSA grade estimator work?
The estimator uses computer vision trained on thousands of PSA-graded cards. It measures centering, inspects all four corners and edges, and scans the surface for defects, then maps those measurements to PSA's grading scale to estimate your grade.
How accurate is the grade calculator?
CardMintAI aligns with actual PSA grades about 95% of the time, with most predictions landing within one grade point. It's accurate enough to decide which cards to submit, though PSA's human graders always make the official final call.
Is the Pokémon card grade checker free?
Yes. You can check a card's grade for free with no credit card. Upgrade only if you want to calculate grades for an unlimited number of cards or track a full collection.
What does the grade calculator measure?
It measures the same four attributes PSA grades: centering (front and back percentages), corner sharpness, edge condition, and surface quality. Each gets a subgrade, and the lowest categories determine your overall predicted grade.
Calculate Your Pokémon Card's Grade in Seconds
Upload a photo, get a predicted PSA grade with full subgrades, and know before you submit — free.