I use this calculator when a welcome offer looks good on paper and I need the real turnover number before I deposit. It works for JVSpin with TOP1BONO, and it also works for any match-bonus offer if you type the terms yourself.
18+ only. T&Cs apply. Estimates only. Confirm live operator terms before you deposit. jvspin.bet is an affiliate site, not the operator.
Enter any bonus terms, or pick a deposit tier to load the JVSpin welcome defaults. Then hit Check.
The tool is built for deposit match bonuses. You enter the terms, press Check, and read the bonus credited plus the turnover you still have to clear.

| Field | What you enter | Why it matters |
|---|---|---|
| Deposit tier | 1st to 4th or Custom | Loads JVSpin welcome defaults for TOP1BONO testing, or clears defaults for any bonus. |
| Deposit amount | Your planned deposit | The base used for match percent maths. |
| Bonus match (%) | e.g. 100, 50, 25 | How much of the deposit is matched as bonus funds. |
| Max bonus (cap) | e.g. 300 or 1500 | Stops the match once the bonus hits this ceiling. |
| Wagering multiplier (×) | e.g. 35× | Turnover target is usually bonus × this number. |
| Time to clear (days) | e.g. 7 | Used to estimate daily pace. |
| Free spins | Optional | Shown in results when the offer includes spins. |
When you pick tiers 1 to 4, the calculator fills the published TOP1BONO welcome structure I test on jvspin.bet. Confirm live before you deposit.
| Deposit | Match | Cap | FS | Min deposit |
|---|---|---|---|---|
| 1st | 100% | 300 EUR | 30 | 10 EUR |
| 2nd | 50% | 350 EUR | 35 | 15 EUR |
| 3rd | 25% | 400 EUR | 40 | 15 EUR |
| 4th | 25% | 450 EUR | 40 | 15 EUR |
Default wagering model in the tool: 35× over 7 days for the casino track. Treat that as confirm live until operator text is locked.

| Scenario | Inputs | Bonus credited | Turnover |
|---|---|---|---|
| 1st deposit | 100 EUR at 100%, cap 300, 35×, 7 days | 100 EUR | 3,500 EUR |
| 1st deposit hits cap | 400 EUR at 100%, cap 300, 35×, 7 days | 300 EUR | 10,500 EUR |
| 2nd deposit | 100 EUR at 50%, cap 350, 35×, 7 days | 50 EUR | 1,750 EUR |
| Custom offer | 200 at 150%, cap 1500, 40×, 10 days | 300 | 12,000 |
The match amount after percent and cap. This is what usually carries the wagering requirement.
Cash you deposited plus bonus funds shown together, so you see the working balance shape.
Bonus × wagering multiplier in this model. Always confirm whether the operator weights bonus only or deposit + bonus.
Turnover divided by days. If the daily number looks unrealistic for how you play, skip the offer.

Use the numbers here as a planning sheet, then read the live cashier terms on JVSpin before you fund an account with TOP1BONO.