BetArbi is a free suite of betting calculators. The surebet / arbitrage calculator handles 2 to 15 outcomes: enter the odds and your stake, and it splits the bets so you profit no matter the result. There's also a free-bet calculator and an odds converter (decimal, fractional, American, implied probability). No sign-up, no paywall, nothing stored ā everything runs in your browser.
Hey Product Hunt š
I'm the maker of BetArbi ā this one started as a scratch-my-own-itch tool.
I do a bit of sports arbitrage ("surebets") ā betting on every outcome across bookmakers so you profit no matter the result. The maths is simple but tedious by hand, so years ago I built a little offline calculator just for me. Friends kept asking for it, so I turned it into a proper free site.
What it does:
⢠Surebet / Arbitrage Calculator ā 2 to 15 outcomes. Enter the odds + stake, it splits the bets for an equal, guaranteed profit.
⢠Free Bet Calculator ā turn a free bet into locked-in profit.
⢠Odds Converter ā decimal, fractional, American & implied probability.
Everything runs in your browser. No sign-up, no account, nothing stored, no paywall. Just the tools.
I'd genuinely love feedback ā what's confusing, what's missing, which betting calculators you'd want next. Thanks for checking it out š
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