Educational bonus math tool

Casino Bonus Reality Check Calculator

See the real wagering pressure before a bonus turns into a bankroll drain.

This calculator estimates raw wagering, adjusted wagering after contribution limits, theoretical expected loss, and theoretical bonus value. It is educational and math-first. It does not predict wins and it cannot make gambling profitable.

Wagering math 30x means volume, not value.

The multiplier decides how much money must cycle through the game before terms clear.

Contribution rules Low contribution inflates required wagering.

If only part of each wager counts, total required wagering climbs fast.

RTP reality RTP is a long-run average, not a session promise.

Expected loss is theoretical. Short sessions can still run hot or cold.

Inputs

Bonus terms and assumptions

Amount you fund before any bonus is added.

A 100% match means bonus equals deposit up to the cap.

100% means every wager counts fully. Lower values increase required wagering.

Used to estimate how many bets/spins are needed to clear wagering.

Results update automatically as you change the numbers.

How to read this

Bonus terms that change the math

What is a wagering requirement?

Wagering requirement is how much money must be bet before bonus terms clear. If terms say 30x and the wagering base is $100, the raw target is $3,000.

Bonus-only vs deposit-plus-bonus wagering

Bonus-only terms apply the multiplier to bonus funds. Deposit-plus-bonus applies the multiplier to both. The second version usually doubles the wagering load.

Why game contribution matters

Contribution decides how much each wager counts. A 20% contribution means only $0.20 of each $1 wager advances progress, so adjusted required wagering becomes much larger.

Why RTP does not guarantee your result

RTP is a long-run average over many plays. Your actual session can be better or worse. Expected loss here is theoretical, not a prediction of your next outcome.

Why max cashout can ruin a bonus

A low max cashout can cap winnings so hard that even after heavy wagering, the payout potential stays limited. That can erase apparent bonus value.

Safer gambling note

This tool does not predict wins and cannot make gambling profitable. Use it to estimate pressure and risk before putting real money on the line.

Bonus calculator FAQ

Common questions

What does 30x wagering mean?

It means the qualifying balance must be wagered 30 times. If the base is $100, raw wagering required is $3,000.

Is a casino bonus free money?

No. Bonus terms can create large wagering volume, expected loss pressure, and payout caps.

Why does game contribution matter?

It changes how much each wager counts. Lower contribution means you must wager much more money to finish.

What is expected loss?

Expected loss is the long-run average loss from required wagering based on house edge. It is theoretical, not predictive.

Can this calculator predict whether I will win?

No. It estimates long-run math only and cannot predict short-term outcomes.

What makes a bonus risky?

High multipliers, low contribution percentages, lower RTP games, and restrictive max cashout rules can make bonus value worse fast.

Use related tools to compare risk, bankroll pressure, and expected loss before you play.

Responsible gambling and 21+ notice

21+ only where legal. Gambling involves financial risk, and no calculator can guarantee profit. This page is educational and does not predict outcomes.

If gambling is causing harm, call or text 1-800-GAMBLER where available, or use local support services. Read our responsible gambling page for more help.