Two equations by which volume is counted
In the industry you meet two basic formulations. They look alike but give different results.
The first model counts from the credited bonus amount alone:
wagering volume = bonus × multiplier
The second adds in the deposit that triggered the bonus:
wagering volume = (bonus + deposit) × multiplier
There is nothing more to it. The arithmetic rests on two details you have to find in the terms: which amount enters the equation, and what it is multiplied by.
Both must be found together. A multiplier alone says nothing, because at the same multiplier the volume can be twice as large.
A third form sometimes appears, tying the volume to winnings from free spins. The principle stays the same; only the amount entering the equation changes.
Same inputs, two results
This is easiest to see with one set of figures placed into both equations.
Illustrative example (these are not Dukat.bet terms — check them in the official rules): a deposit of 100 EUR, a credited bonus of 100 EUR, a wagering multiplier of 35.
| Detail | Model A: bonus × multiplier | Model B: (bonus + deposit) × multiplier |
|---|---|---|
| Input amount | 100 EUR | 200 EUR |
| Multiplier | 35 | 35 |
| Wagering volume | 3,500 EUR | 7,000 EUR |
| Difference against model A | — | +3,500 EUR |
| Rounds at a stake of 0.50 EUR | 7,000 | 14,000 |
The same offer, the same multiplier, twice the work. That is the whole message of the table.
If all you read is the multiplier itself, you know nothing yet about how much you will actually play.
Why the model is the first thing to look for
Wording in the rules is brief and easy to miss. Watch what stands immediately before the word multiplier or before the number.
If the text speaks of the bonus amount, the credited sum or the size of the bonus, that is model A. If it mentions deposit and bonus together or the total amount of the offer, that is model B.
With free spins the input amount is derived differently again, usually from the credited winnings from those spins.
Where the wording is not clear-cut, write to support with a question containing figures. An answer of the type at a deposit of 50 EUR and a bonus of 50 EUR the volume is X EUR cannot be read two ways.
A paper test helps too. Put your own figures into both equations and see whether one result matches what the offer description claims. If only one fits, the model is confirmed.
You need the same detail when comparing two offers. Without the model, comparing multipliers is worthless, as we show in the text on real bonus value.
A self-check in five steps
A procedure you can run on your phone calculator before accepting the offer.
- Find the model. Is it counted from the bonus, or from bonus and deposit together.
- Find the multiplier. The number beside the word wagering or in the offer conditions.
- Work out the volume. Put it into the relevant equation and write the result down in euros.
- Convert volume into rounds. Divide the volume by your usual stake per round.
- Estimate the time. Divide the rounds by how many you normally play in an hour.
Illustrative example (these are not Dukat.bet terms — check them in the official rules): a volume of 3,500 EUR at a usual stake of 0.40 EUR means 8,750 rounds.
The fifth step is the decisive one. A sum in euros sounds abstract; a number of hours does not.
Compare the result with the offer deadline. If it gives more hours than you can play before expiry, that is a reason to decline. Deadlines are covered in the text on bonus validity.
How to convert betting volume into playing time
The conversion has two steps, both needing an honest estimate of your own pace.
The first step is the number of rounds: rounds = wagering volume ÷ average stake. The second is the time: time = rounds ÷ rounds per hour.
Illustrative example (these are not Dukat.bet terms — check them in the official rules): a volume of 7,000 EUR at a stake of 0.50 EUR gives 14,000 rounds. At a pace of 500 rounds per hour that is 28 hours of play; at 300 rounds per hour, nearly 47 hours.
Do not invent your pace. Estimate it from your own history, not from how fast you could theoretically click.
The result also depends on whether you play in a section with full contribution. When part of your stakes counts at a reduced rate, the real volume in play is higher than the equation says. Which rounds count is covered in the text on wagering rules.
How much is still left to complete
While playing you need a third equation, the simplest of them:
remaining = total volume − qualifying volume already played
The key word is qualifying. Add up only rounds that count towards wagering, or you will overstate your progress.
Illustrative example (these are not Dukat.bet terms — check them in the official rules): at a total volume of 3,500 EUR and 1,200 EUR played, 2,800 EUR remains if half the stakes counted at a reduced rate.
Most player accounts show wagering progress in the bonus section. Take that as the main source and your own calculation as a check against your expectation.
When the figures diverge, look first at rounds that were voided, refunded or played above the permitted stake cap. Those are the usual reasons for a difference.
Keep notes as you go, not in hindsight. Tracing hundreds of rounds after a week of play is work that one line a day would avoid.
Rounding and the margin to allow for
The calculation gives a clean number; play does not. So add a margin to the result.
The first reason is rounding of stakes. Few people play exactly the average amount, so the real number of rounds swings both ways.
The second is the balance. If it falls to zero before the volume is met, the calculation collapses however precisely you made it. The equation is about betting volume, not about how much money you keep along the way.
The third reason is time. Breaks, account verification and ordinary life all shorten the window you have.
So take a bonus as an extension of play, not an operation with a certain outcome. Further questions on the maths are in the wagering FAQ; current parameters are only ever in the official Dukat.bet terms.