Free Strategy & Competitive Calculators

6 tools

Elo, rank, win rate, and card game calculators. Browse our free strategy & competitive tools below — no sign-up required.

Card Pack Expected Value Calculator

Calculate the expected value (EV) of opening a card pack. Enter card rarities, pull rates, and market values to find if a pack is worth buying.

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Chess Elo Predictor

Predict your future chess Elo rating based on games played and improvement rate. Project your rating over weeks and months of play.

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Deck Building Cost Calculator

Estimate the total cost to build a card game deck. Enter card names, quantities, and prices to calculate your full deck budget.

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Elo / MMR Calculator

Calculate your new Elo or MMR rating after a match. Enter current rating, opponent rating, and K-factor for precise post-match rating.

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Rank Promotion & Demotion Calculator

Calculate games needed to promote or risk of demotion in ranked modes. Enter current LP, win rate, and point amounts to see your outlook.

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Win Rate vs Rank Calculator

Calculate games needed to reach a target rank based on your win rate. Enter win rate, point gains, and losses to plan your climb.

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