Odds Converter

Convert betting odds between decimal, fractional, American, and implied probability formats instantly. Works for poker, sports, and casino odds.

Odds to convert

Input format

Odds value

e.g. 1.50, 2.00, 3.75

Results

If you bet $100, you win

$150.00

Total return

$250.00

Implied probability

40.00%

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Common odds reference

Odds	Decimal	Fractional	American	Implied %
Even money	2.00	1/1	+100	50.00%
2:1	3.00	2/1	+200	33.33%
3:1	4.00	3/1	+300	25.00%
4:1	5.00	4/1	+400	20.00%
5:1	6.00	5/1	+500	16.67%
10:1	11.00	10/1	+1000	9.09%
1/2 favourite	1.50	1/2	-200	66.67%
1/3 favourite	1.33	1/3	-300	75.19%
4/5 favourite	1.80	4/5	-125	55.56%

Which format is used where?

Decimal

Regions: Europe, Australia, Canada

Sports: Most sports, online sportsbooks

Includes your stake in the return. 2.00 = even money.

Fractional

Regions: United Kingdom, Ireland

Sports: Horse racing, football (soccer)

Shows profit relative to stake. 3/1 means win $3 for every $1 staked.

American (Moneyline)

Regions: United States

Sports: NFL, NBA, MLB, NHL, MMA

+150 means win $150 from a $100 bet. -200 means stake $200 to win $100.

Implied Probability %

Regions: Global (analytics)

Sports: Trading, value betting

Converts any odds to the bookmaker's implied win chance. Under 100% = fair book.

Understanding Overround

When all implied probabilities in a market are added together, the total exceeds 100%. This excess is the bookmaker's margin (also called vigorish, vig, or juice). A typical sports market runs at 103–110%, meaning the "true" odds are slightly shorter than displayed. Value bettors look for odds where the implied probability is lower than their own estimate of the real probability.

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Odds to convert

Results

Supported casino offers

Betpanda

Winz.io

Common odds reference

Which format is used where?

Decimal

Fractional

American (Moneyline)

Implied Probability %

Best first deposit bonuses: top 10 crypto casinos

Related poker tools

Odds to convert

Results

Supported casino offers

Betpanda

Winz.io

Common odds reference

Which format is used where?

Decimal

Fractional

American (Moneyline)

Implied Probability %