🎯 Odds Converter & Parlay Calculator

Convert American, decimal and fractional odds instantly — then stack up to 8 legs and see the combined payout.

Odds converter

Type any format — American (−110, +150), decimal (1.91, 2.50) or fractional (10/11, 3/2). Format is auto-detected.

Odds

American

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Decimal

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Fractional

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Implied probability

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Parlay calculator

Add up to 8 legs in any format. Combined odds multiply — so does the risk.

Stake (USD)

Combined odds

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Total payout

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Profit

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Implied probability

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Enter your legs and stake to see the payout math.

For education and entertainment only — not betting advice. Never wager more than you can afford to lose. If gambling stops being fun, call or text 1-800-GAMBLER.