Betting Odds Calculator

Enter odds in any format — get the other formats, implied probability and payout.

Result

Decimal2.5
Fractional (approx)3/2
American+150
Implied probability40%
Stake £10.00£25.00 return (£15.00 profit)

Betting Odds Calculator — FAQs

Decimal vs fractional?

Decimal includes your stake (2.50 = get back £25 on £10). Fractional shows profit only (6/4 = £15 profit on £10). Same odds, different presentation.

American odds negative?

−150 means stake $150 to win $100; +150 means $100 wins $150. Decimal equivalent: 1.67 vs 2.50.

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