Bonus value calculator: turnover, expiry and expected cost
This calculator turns the numbers you type in, bonus amount, deposit, turnover multiplier and a margin assumption, into the turnover, the expected cost of the conditions and the value of a bonus bet. It lists no operator offers. In Ontario, bonus advertising is restricted by AGCO Standard 2.05, so the page only shows arithmetic.
Checked by the editorial team on
- 3 min read
- 7 sections
- 3 tables
- 4 FAQ
Calculate
Without scripts, use the formulas below. Every number is yours to enter, and the examples are not offers.
| Result | Formula |
|---|---|
| Turnover | M x (B + s x Dep), where B is the bonus, Dep the deposit, s is 1 if the deposit counts toward the condition and 0 if not, and M the multiplier |
| Expected cost of conditions | Turnover x m, where m is the margin you assume |
| Value of a bonus bet | B x (1 - m) x (D - 1) / D, where D is the decimal odds you use |
Turnover and expected cost: six examples
| Bonus B | Deposit counts | Deposit | Multiplier M | Turnover | Expected cost |
|---|---|---|---|---|---|
| $50 | no | $100 | 1 | $50 | $2.50 |
| $50 | yes | $100 | 1 | $150 | $7.50 |
| $100 | yes | $100 | 5 | $1,000 | $50.00 |
| $100 | no | $100 | 8 | $800 | $40.00 |
| $200 | yes | $200 | 3 | $1,200 | $60.00 |
| $25 | no | $50 | 20 | $500 | $25.00 |
All amounts in Canadian dollars.
Takeaway: a higher multiplier raises the expected cost in proportion, whatever the size of the bonus.
Bonus bet value: six examples
A bonus bet pays only the profit, not the stake. At higher odds its value rises, because the profit part is larger.
| Bonus bet B | Decimal odds D | Value |
|---|---|---|
| $50 | 1.50 | $15.83 |
| $50 | 2.00 | $23.75 |
| $50 | 3.00 | $31.67 |
| $50 | 5.00 | $38.00 |
| $100 | 2.50 | $57.00 |
| $25 | 4.00 | $17.81 |
Convert prices with the odds converter. The margin is explained at vig.
When the result is wrong
- Conditions not in the formula. Expiry dates, excluded markets, maximum stakes and minimum odds change the real value. Read the terms and enter them yourself.
- Margin guess. The 5% above is a round number for the examples, not a measured margin.
- Not advice. The result is arithmetic, not a reason to deposit. Gambling involves risk. Play responsibly.
How we checked
- We recomputed each row by hand.
- We checked that the table and the calculator agree.
- We kept operator offers out. Rules for Ontario: AGCO advertising standards.
Sources
- AGCO, Registrar's Standards for Internet Gaming, Standard 2.05: agco.ca.
- Formulas: derived, version 1.0, 2026-11-13.
What changed
- : first version; page held back from search until a lawyer's written view on the calculator is received.
FAQ
Does this page list bonuses?
No. It has no offers and no promo codes. You type in the numbers from a document you are reading, and the calculator does the arithmetic.
What is turnover?
The total amount you must bet before a bonus can be withdrawn. Here: multiplier x (bonus + the share of the deposit that counts).
Why is the expected cost not zero?
Each bet carries the operator's margin. Turnover multiplied by that margin is the expected cost of meeting the condition.
Does Ontario allow bonus advertising?
Public advertising of bonuses is restricted in Ontario under AGCO Standard 2.05. This page advertises nothing; it only explains arithmetic. See the AGCO page on this site.