Sports betting calculators & tools
The same tools the sharps use, free and no signup required. Then get those prices for real on BettorEdge.
Odds Converter→
Convert American, decimal, and fractional odds to a win percentage in one place.
Parlay Calculator→
Build your parlay, see the true odds, payout, and the chance it actually hits.
No-Vig Calculator→
Strip the vig from a two-way market to find the fair odds and true probability.
Teaser Calculator→
See whether your teaser actually crosses the numbers that make it worth it.
Half Point Calculator→
Is that half point worth the juice? It depends entirely on which one.
Alternate Lines Calculator→
Check whether a book's alternate spread or total is actually fair value.
Market Making Calculator→
One fair line plus a margin, and your two-sided quotes at every alternate spread.
Closing Line Value Calculator→
Did you beat the closing line? Find out in percentage points and cents.
Hedge Betting Calculator→
Work out the stake that locks the same profit whichever side lands.
Compare Lines Calculator→
Two spreads, two prices, one answer: which line is actually better.
Win Probability Calculator→
Turn a point spread into each team's real chance of winning the game.
Betting Calculator→
Enter your odds and stake to see your exact payout and profit.
Implied Probability Calculator→
Turn any odds into the true win percentage they imply.
Expected Value Calculator→
See whether a bet is positive or negative EV before you place it.
Arbitrage Calculator→
Find the stake split that locks in a guaranteed profit across both sides.
Hold Calculator→
See the sportsbook's hold on any two-way market, and what it costs you.
Vig Calculator→
Calculate the vig (juice) baked into any market and reveal the fair price.
Bet Winnings Calculator→
See exactly what your bet pays back and profits before you place it.
Calcutta Value Calculator→
Find the fair value of a team in a Calcutta auction before you bid.
Moneyline Calculator→
Enter a moneyline price and your stake to see the exact payout, profit, and win probability.
Bankroll Calculator→
Size your bets with discipline: set your bankroll and unit size, or let Kelly find the optimal stake.
Prediction Market Calculator→
Turn a prediction market contract price into a probability and American odds.
Spread to Moneyline Calculator→
Convert a point spread to a fair moneyline, and a moneyline back to a spread.
Middle Calculator→
Two overlapping bets, one gap. See what a middle pays if it hits.
Middle Probability Calculator→
Estimate how often a middle actually hits, by league, and whether it is +EV.
Round Robin Calculator→
Turn your picks into every smaller parlay and see the total stake and payout.
Poisson Calculator→
Turn expected goals into 1X2, over/under, BTTS, and scoreline odds.
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