Online Casino Bonus Calculator: Free Tool
Stop torturing your brain with calculations each time a bonus offer appears before you. Our bonus calculator has been designed to cut through all that nonsense and deliver the bottom line to you.
Not only will it tell you exactly what you have to wager in order to claim your bonus, but more importantly, it will give you an idea if the offer is viable. Whether you are chasing after ultimate value or just trying to protect your bankroll, this will give you your game plan without spending a single dollar.
How much do you want to deposit?
Deposit $0 get $0 as free money
How to Use This Tool
It is quite simple. No mathematical degree is required to solve this. Just put in the necessary information regarding the offer you were able to find out.
For example, if you are looking at one of the online casinos that we have partnered with, it is even easier because all you have to do is look at the menu for the offer that you want, and we will fill in the details. If that is not the case, here is what you have to do:
- Pick Casino Bonus: Choose the casino bonus from our list and the form will auto-fill the details. Or you can change to “Custom” and fill in your own details.
- Deposit Amount: This is where you will input the amount of money that will go into your account (e.g. $100).
- Wagering Requirement (x): This is how many times the casino multiplies the amount they are requiring (for example, 35x). The calculator must be able to determine if this is required for the bonus or for the deposit plus bonus.
The Hidden Trap of Game Contribution
Another big variable that this casino bonus calculator considers is the fact that you are playing games that will count 100% towards the play-through requirements. This will usually be the slots machines, but if you are planning to grind out a bonus playing Blackjack or Roulette, things will be very different indeed.
The contributions for table games are normally 10% or 0%. This implies that if the calculator shows you need to bet $3,000 but the contribution rate for the specific game is 10%, you will need to bet $30,000 instead. You can refer to the Terms & Conditions for whether the specific game is excluded.
“The Max Bet” Danger Zone
Even when demonstrating the best possible strategy in the calculator, you can run out of money without considering the “Max Bet” rule. This is because the casino would limit the amount of the bet (either $5 or $10) that you place while using the bonus money.
For instance, if you place a bet of $6 rather than the maximum bet of $5, your casino will wipe out your entire bonus and winnings. The calculator assumes that you are playing under these conditions safely, which means you are not required to place high stakes in an effort to rush through and meet the requirements.
What the Numbers Actually Mean
Once you press the calculate button, we will then break down your results into three distinct numbers. This is your reality check.
- Total Play Money: This represents your initial starting balance. It is a combination of cash and bonus money that represents your total initial balance for a gaming session.
- Amount to Wager: This is the most important figure in the agreement. This is the total amount of wagers you are required to place in order for the casino to allow you to withdraw any money at all.
- Theoretical Result: Think of this as the statistical prediction. Based on the RTP (Return to Player) value in the game, this displays what the balance would look like after the completion of the bet. If the number is positive, it is the theoretical profit. If the number is negative, it is an indication of the loss.
Theoretical Win vs Real Volatility
You have to be aware of the difference between “Theoretical Outcome,” which our tool forecasts, and reality. Our tool is based on the average of RTP, which is a statistical average over millions of spins. Volatility does not apply here.
Talking about the short term, you could have a massive winning session and complete the wagering requirement in no time, or you could have a losing session and empty your bankroll even if you are nowhere close to the middle point. “Theoretical Outcome” will help you understand what you can expect. High volatility slots can cause extreme fluctuations in these values.
Sticky vs. Non-Sticky Bonus
However, prior to entering this result into your final calculation, you will want to consider whether your bonus is “sticky” or “non-sticky” (also known as a parachute bonus). The result you will obtain from this calculator will be your “raw” wagering target; this will depend on whether your bonus is sticky or non-sticky.
Having a non-sticky bonus means that you are playing with real money right away. If you win a substantial amount using real money, there are times that you can cancel the bonus amount and withdraw the money without even considering the wagering requirement. The wagering number on the calculator will only kick in if you run out of real money.Do you look for bonuses of the highest quality where the math checks out? You will find the best online casinos of 2025 on our main page.
Update Log
22 January 2026: Added more details on how to use a bonus calculator and what to pay attention to.
Gambling should only ever be viewed as a form of fun; entertainment, and never a way to make money, or for financial gain. If you find yourself chasing losses, unable to stop, or expecting to win, you may be exhibiting signs of problem gambling. If, at any point, you feel that you have a gambling problem, stop immediately, check out our Responsible Gambling page, and reach out to organisations and charities like New Zealand’s Problem Gambling Foundation. Help and support is available.
Our New Zealand-based reviewers and editorial team, trusted by 12,000 visitors, test 4 online casinos per week. The reviewers, including Edward Howarth, Mark Dash, Sophia Novakivska, thoroughly test each casino as mystery shoppers who actually deposit money into the casino and then report back on what their experience was like from the player's perspective. Our ratings are based on the testers' experiences as well as diligent research of the casino background, the legal terms and conditions, and the reputation among New Zealand players, in compliance with Gambling Act of 2003. Our DashScore provides a comprehensive evaluation of each casino we tested. Our reviews comply with the Gambling Act of 2003 ensuring legal reliability.
This website uses affiliate links which may earn a commission for registrations and/or player activity at no additional cost to the player. We ensure affiliate links do not influence our rankings or reviews, maintaining our commitment to providing truthful content to our readers. Our affiliate links support our unbiased reviews, ensuring we provide genuine insights to our readers.
While we may earn commissions from brands listed on this website, our reviewers' unedited opinions, based on first-hand experiences, are always their own and are not influenced by the financial aspect in any way. Our Kiwi Experts review the brands from the player's perspective and present their own opinions. This allows us to publish objective, unbiased and true reviews.
Online casinos mentioned on this website allow players aged 20 and over to gamble. For New Zealand players, legal gambling age is 20, as enforced by the Gambling Act of 2003 and its amendments. Fine can be up to NZ$500 for persons caught underage gambling. If you are visiting us from another country, you are expected to obey the local laws regarding legal gambling age.
All our content is reviewed by a certified expert at least quarterly. We update data on terms and conditions, regulation, bonuses, payment systems, reread our content, make corrections and update pages. So you can be sure you are receiving up-to-date data on our website.