Multiply your game odds.
A three-game parlay at 1.40, 1.20 and 2.00 gives you 1.40 × 1.20 × 2.00 = 3.36 total odds.
A LITTLE PERSPECTIVE ON YOUR PICKS.
WHAT ARE
THE ODDS?
Three games. One ticket.
See what your sports odds look like
on the other side of the decimal.
IMPLIED PROBABILITY
29.8%
Equivalent to about 30 out of 100.
IMPLIED HIT IMPLIED MISS100 UNITS
TOTAL ODDS3.36×
IMPLIED MISS70.2%
PLEASE NOTE Odds-implied probability, not a prediction of the actual match result.
Bookmaker margins may be included in the odds. Multiplying probabilities assumes independent game outcomes.
FROM THE RULEBOOK / 001
NOT MAGIC.
JUST DIVISION.
Turn decimal odds upside down.
Higher odds mean a lower implied probability.
PROBABILITY = 1 ÷ ODDS × 100
Take the inverse.
1 ÷ 3.36 × 100 = 29.8% implied probability. Already have the final odds on your ticket? Enter that number directly.
Know what it leaves out.
Team form, injuries and bookmaker margins aren’t analyzed. Related selections may not be independent. This is a conversion, not a forecast.
PIN THIS TO THE BOARD
THE QUICK
REFERENCE.
Double the odds.
Half the implied probability.
| TOTAL ODDS | PROBABILITY | OUT OF 100 |
|---|---|---|
| 1.50× | 66.7% | |
| 2.00× | 50.0% | |
| 3.00× | 33.3% | |
| 5.00× | 20.0% | |
| 10.00× | 10.0% |
THE SMALL PRINT, EXPLAINED
BEFORE THE FINAL WHISTLE.
Is this my actual chance of winning?
No. This is the implied probability derived from decimal odds. Bookmaker margins and market pricing may affect those odds. The calculator does not analyze teams, predict results or guarantee a winning ticket.
Can I enter total odds instead of each game?
Yes. Enter a number in “Total odds” on the same ticket. That number takes priority and pauses the individual game fields. Clear it, or select “Use game odds instead”, to return to your saved game entries. If your bookmaker applies a boost or adjustment, use the final odds shown on the ticket.
How do I add more games to my parlay?
Select “+ Add game” to add another odds field, up to 30 games. Use the × button to remove a game. Empty fields are ignored. Each field accepts one decimal odd, such as 1.40 or 2.00. American odds (+150) and fractional odds (3/2) are not supported.
Why does adding a game lower the probability?
Multiplying by another decimal odd greater than 1 increases the total odds and lowers their inverse. Interpreting the product as the probability of every selection winning assumes independent outcomes. This assumption can fail for related selections in the same match.
Do you store the odds I enter?
Calculations run in your browser. We do not send the raw odds or save a ticket history. If you allow usage analytics, we may send grouped events such as input method, selection-count range and probability range to Google Analytics.
Privacy & cookies
Odds / Percent converts decimal sports odds into implied probability. Raw entries and calculation history are not stored. Your analytics preference is saved in this browser for up to 180 days.
If Google Analytics is configured, visits and feature-use events are sent only after you allow analytics. We do not include your raw odds, name or email in those events. Google may process device and browser information to provide the service. Read Google’s privacy policy for details.
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Operator and contact details will be added before public launch.