Decimal odds. One clear multiplier.

Multiply to find the total return

At decimal 2.50, a successful $100 stake returns $250. The profit is $150 after subtracting the $100 originally staked. For a $40 stake, the return is $100 and the profit is $60.

Use total payout = stake × decimal odds. Use profit = stake × (decimal odds − 1). Treating the full payout as profit overstates what you earned.

Why decimal odds must exceed 1

A standard winning price includes your stake plus a positive profit, so decimal odds must be greater than 1. A price of 1.00 promises no profit and is outside this calculator’s supported inputs.

A larger decimal number means a larger potential return for the same stake and a lower implied break-even probability. It does not mean the bet is better value without an independent probability estimate.

Converting a decimal price

At decimal 2.00 or above, American odds = (decimal − 1) × 100. Decimal 2.50 becomes +150. Below 2.00, American odds = −100 ÷ (decimal − 1). Decimal 1.50 becomes −200.

For fractional odds, subtract 1 and express the result as a ratio. Decimal 2.50 gives 1.50 = 3/2. Decimal 1.80 gives 0.80 = 4/5. Some decimal prices need an approximate fraction.

Compare equal stakes and settlement rules

A price of 1.91 returns $191 on $100, while 1.95 returns $195. The $4 difference is also a difference in profit. The stake is identical in both cases.

Compare prices only for the same outcome and settlement terms. Overtime rules, draws, void bets and dead heats can change what the price actually covers. This calculator models a simple win or loss with no commission.

Explore the numbers

Use the calculators to try these examples with your own inputs. Calculations describe prices and conditional returns, not guaranteed outcomes.

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