Free betting tools
Sports betting calculators
Four free, fast calculators that help you bet smarter — from the team behind SafeBet’s AI picks. They work with American, decimal and fractional odds, on any device.
Updated
-
EV calculator
Is this bet +EV? See your expected value, edge, fair odds and Kelly stake.
Open calculator -
Odds converter & calculator
Convert American, decimal and fractional odds and see your payout.
Open calculator -
Arbitrage calculator
Spot sure bets across sportsbooks and get the exact stake for every outcome.
Open calculator -
Parlay calculator & builder
Stack up to 12 legs and see the parlay odds, payout and probability.
Open calculator
Which one do I need?
The right tool for every bet
- EV calculator
- You think the sportsbook’s price is off and want to know whether the bet is worth it in the long run.
- Odds converter
- You see odds in a format you don’t use, or want to know your payout and the break-even win rate.
- Arbitrage calculator
- Two or three sportsbooks disagree on a market and you want to lock in a profit on every outcome.
- Parlay calculator
- You’re combining several picks into one ticket and want the combined odds, payout and real chance of hitting.
Let the AI find the value
Our calculators do the math. SafeBet’s AI does the research — 3 picks a day with an AI Safe Score and a full breakdown.