Free betting tools & calculators
The calculators sharp bettors actually use — no signup, no paywall. Remove the vig, size your stakes and find value.
EV Calculator
Devig the market and see the expected value of any bet.
Odds Converter
Convert decimal, American, fractional and implied probability.
Arbitrage Calculator
Split stakes across books for a guaranteed arbitrage profit.
Kelly Criterion Calculator
Optimal stake from your edge and bankroll (full / half / quarter).
Parlay Calculator
Combine legs into total odds, payout and win probability.
No-Vig Calculator
Strip the margin to get fair odds and true probability.
Hedge Calculator
Find the hedge stake that locks in a guaranteed profit.
Bookmaker Margin Calculator
See the margin (vig) a bookmaker builds into a market.
Correct Score & Poisson Calculator
Turn expected goals into score, 1X2 and O/U probabilities.
Want the edge, tracked automatically?
ProfitBetting logs every bet and measures its closing line value against Pinnacle — so you know if you're really beating the market.
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