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Wizard of Odds Slot Calculator

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Wizard of Odds online slot machine is a 5-reel and three rows game with twenty pay lines, and you can place bets across all devices and platforms between 0.4 all the way up to 100 coins. 

Try using the slot calculators to determine your probability of success and make more informed betting decisions!

👉 Big Win Probability Calculator

👉 Hit Frequency Simulator Calculator

👉 Stake Return (RTP) Estimator Calculator

Big Win Probability

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Enter values and click Calculate.

Formula: P(at least once) = 1 − (1 − 1/odds)spins

Hit Frequency Simulator

Expected winning spins
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Chance of at least one win
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Approximation: wins ~ Binomial(n, p) where p = 1/hit. 68% range ≈ E ± √(n·p·(1−p)).

Stake Return (RTP) Estimator

Total bet
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Expected return
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Expected net (profit/loss)
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This is a long-run expectation from RTP; real results vary widely in the short term.

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