How to Use the Casino Bonus Calculator (Step-by-Step Guide)

This guide explains how to evaluate the true value of online casino bonuses using our bonus EV calculator. You'll learn how wagering requirements work, what game contribution means, and how to interpret your bonus expected value (EV) like a real analyst. This section is designed for players researching casino bonus maths, wagering calculation, and bonus fairness.

1. Enter the basic bonus information

• Deposit Amount – The real-money amount you plan to deposit (e.g. 100).
• Match Percentage – A 100% match doubles your deposit. A 200% match triples it.
• Max Bonus Cap – The highest bonus the casino is willing to award.
• Wagering Requirement (x) – How many times the bonus must be wagered before withdrawal.

2. Understand game contribution & RTP

• Game Contribution (%) – Determines how much each wager counts toward rollover. Slots often contribute 100%, table games 10–25%.
• RTP (Return to Player) – Most slots are around 96%. Higher RTP = lower house edge and better EV.

3. Optional: Max cashout limits

Some bonuses limit winnings (e.g. “max cashout 5x bonus”). Enter this as a multiplier.

• 5x bonus → enter 5
• No max cashout → leave empty

4. Click “Calculate Bonus Value”

After calculation, you’ll see a breakdown including:

• Bonus Amount – Based on your deposit and match %.
• Total Wagering Required – Adjusted for game contribution.
• Expected Loss – Based on RTP and total wagering.
• Bonus EV – Bonus minus expected loss (the real value).
• EV% – Expected value expressed as % of your deposit.
• Grade (A–F) – Your bonus quality rating.

5. How to interpret the results

• A–B Grade (Positive EV) – Strong bonus with fair wagering. These typically score well in our casino rating system.
• C Grade (Neutral EV) – Fine but not exceptional.
• D–F Grade (Negative EV) – High wagering, low contribution, low RTP, or max-cashout traps make the bonus mathematically poor.

This calculator does not predict short-term results, but it provides the most accurate mathematical assessment of bonus value available to players. It is ideal for comparing multiple casino bonuses or validating whether an offer is genuinely worth claiming.