Free tools

Betting calculators that actually do the math

Odds conversion, parlay payouts, hedge stakes, Kelly sizing, arbitrage splits, and more. No signup, no ads, just the numbers.

Odds Converter

Switch between American, decimal, and fractional odds — and see the implied probability behind the price.

Combine 2 to 15 legs and instantly see the combined odds, payout, and implied probability.

Find the exact stake on the opposite side that locks in profit — or scale back to keep more upside.

Strip out the sportsbook's hold to see what the market thinks is the fair price.

Enter your wager and odds — see exact profit, total return, and implied win probability.

Split your total stake across opposing sides to lock in a return when the market diverges.

Calculate the bankroll % that maximizes long-run growth — or scale to quarter Kelly for lower variance.

Break your legs into smaller parlays. See total combos, total risk, and the payout range per size.

The math, done for every line

EdgeGoat prices every Hard Rock line with its own model, shows its probability next to the book's, and tracks your parlays leg by leg. Free to start.