No signup, no login, no email — just the maths, with honest explanations of what the numbers mean. Built by the team behind the Zort bet tracker.
Decimal ↔ fractional ↔ American, plus the implied probability behind any price.
Combined odds, returns, and profit for up to 10 legs — and the honest maths of why accas pay big and land rarely.
Optimal stake size from odds and your estimated edge — full, half, and quarter Kelly, with the warnings most Kelly calculators skip.
Returns for win, place, and lose at any odds and place terms — and when each-way is actually worth it.
The exact stake that locks in equal profit on a bet the odds have moved on — run it before accepting any cash-out offer.
Split a stake across bookmakers to cover every outcome — with the execution risks arb guides skip.
Back several selections in one market for equal profit whichever wins, up to 6 selections.
The overround you're paying on any market, its theoretical payout, and the fair odds with margin removed.
Work out your return on investment across any run of bets.
Calculators tell you what a bet could do. Tracking tells you what your betting actually does. Zort scans any bet slip with AI and keeps your real P&L, ROI, and win rate — free on iOS and Android.
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