Is Your Collection Beating the Market?
Import your MTG collection by pasting card names with quantities, purchase prices, and dates. The calculator resolves current TCGPlayer market prices and compares your portfolio's total return against a market benchmark over the same period. Ready to track performance over time? Set up a portfolio tracker for ongoing monitoring.
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Paste a list, upload a CSV, or try one of these sample portfolios:
Frequently Asked Questions
What does the MTG ROI calculator measure?
The calculator compares what you paid for each card against its current TCGPlayer market price. It totals your gain or loss, annualizes the return, and keeps unresolved cards separate so the result stays honest.
Why compare MTG cards against a market benchmark?
A benchmark gives the return context. If a card doubled after five years, the useful question is whether that beat a traditional market hold over the same dates and risk window.
Can I save calculator results to a portfolio?
Yes. After calculating, signed-in users can import resolved cards into a SpellBook Finance portfolio with cost basis and acquisition dates preserved. Anonymous users can calculate first and sign in when they are ready to track.