Betting calculators
The four calculations that actually change decisions: what a price is worth, what a parlay really pays, what the book is charging you, and what it costs to lock a win in.
Decimal
1.909
Implied probability
52.38%
Profit on $100
$90.91
Why hold matters more than the headline price
A book posting -110/-110 is charging 4.55%. One posting -105/-105 charges 2.38%. On a hundred bets a season at $100 each, that difference alone is over $200 — before a single result goes your way.
Parlays are priced worse than you think
Each leg carries its own vig, and they compound. A four-leg parlay of -110 sides pays around +1228 when the fair price is closer to +1500. The calculator above shows that gap on any ticket you build.