Free tools
Free sports betting calculators
Six fast, no-nonsense calculators every disciplined punter should know — arbitrage, expected value, Kelly staking, fair odds and more. No signup, no email, just the maths.
Calculators
Arbitrage Calculator
Lock in guaranteed profit across two books
Open calculatorEV Calculator
See the true value of any bet
Open calculatorKelly Calculator
Size every bet for maximum safe growth
Open calculatorNo-Vig Fair Odds
Strip the bookie margin, see the real price
Open calculatorVig & Hold Calculator
Measure the margin a book is charging you
Open calculatorOdds Converter
Decimal, American, fractional & implied probability
Open calculatorDone crunching numbers? Let our system do it.
We scan thousands of lines a second and post +EV and arbitrage bets straight to your Discord. Try 7 days for $1.
18+. Gamble responsibly. Past performance does not guarantee future results.