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25.00 Decimal Odds Explained

Decimal
25.00
American
+2,400
Fractional
24/1
Implied probability
4.00%
Polymarket
4¢
$100 wins
2,400.00
Inputs
Results
Decimal odds25.000
American
+2,400
Fractional
24/1
Implied probability
4.00%
Polymarket
4¢
Profit
2,400.00
Total return
2,500.00

25.000 decimal, +2,400 American, 4.00% implied probability

25.00 is the decimal way of writing a price that Americans call +2,400 and British bookmakers call 24/1. Decimal odds are the easiest to compute with: multiply the stake by 25.00 for the total return, and divide one by 25.00 for the implied probability of 4.00%.

What 25.00 pays

Multiply the stake by 25.00 to get the total return. A 100 stake returns 2,500.00, of which 2,400.00 is profit. To win 100 in profit you would need to stake 4.17.

Payout by stake
StakeProfitTotal return
10240.00250.00
25600.00625.00
501,200.001,250.00
1002,400.002,500.00
50012,000.0012,500.00
1,00024,000.0025,000.00

Break-even and long-run results

One divided by 25.00 is 4.00%: the implied probability, and the win rate at which betting this price neither makes nor loses money. The rows below show the return on stake at several win rates.

Return on stake by long-run win rate
Win rateReturn on stake
4%0.0%
50%1,150.0%
55%1,275.0%
60%1,400.0%
65%1,525.0%

25.00 is a longshot price implying 4.00%. Bookmakers shade longshots more than any other price, so the true chance is usually a little higher than the implied figure suggests; the power and Shin devigging methods exist largely to model that shading.

Converting 25.00 by hand

Every other format follows from the decimal price in one step. Implied probability is one divided by 25.00, which gives 4.00%. American odds depend on which side of 2.00 the price sits: at or above 2.00, multiply (25.00 − 1) by 100 to get +2,400. The fraction is 25.00 − 1 written as a ratio and snapped to the nearest traditional price, 24/1. A prediction market simply quotes the probability in cents: 4¢.

The vig at 25.00

If both sides of a two-way market were 25.00, their implied probabilities would sum to -92.00% above 100%. That is the overround; as a share of stakes it is a -1,150.00% margin. The fair price with the margin removed is 2.00 on each side. The devig calculator does this for any market and any method.

25.00 on a betting exchange

Exchange commission comes off winnings, so 25.00 at 2% commission is really 24.520, and at 5% it is 23.800. The break-even win rate rises accordingly.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%24.520+2,3524.08%
5%23.800+2,2804.20%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

Frequently asked questions

What does 25.00 decimal odds mean?

Decimal odds of 25.00 return 25.00 for every 1.00 staked, including the stake, so the profit is 25.00 minus 1. The implied probability is 4.00%.

What is 25.00 in American odds?

25.00 decimal is +2,400 in American odds. Prices of 2.00 and above convert with (decimal − 1) × 100; prices below 2.00 with −100 / (decimal − 1).

What is 25.00 as a fraction?

25.00 is 24/1 in fractional odds: subtract 1 from the decimal price and express the result as a fraction.

How much does 100 return at 25.00?

100 × 25.00 = 2,500.00 total return, of which 2,400.00 is profit.

What win rate breaks even at 25.00?

1 / 25.00 = 4.00%. Win more often than that and the price is profitable; the bookmaker's margin means both sides of a market usually sit a little under fair.