Probability Converter
Convert probabilities between percentage, decimal odds, fractional odds, and American odds. Useful for comparing odds across different betting platforms and regions.
Input
All Formats
Probability Converter
Convert between different probability formats: percentage, fraction, decimal odds, and ratio.
How It Works
Enter a probability in any format and instantly see it converted to all other formats. Useful for comparing odds across different regions and platforms.
When to Use
When comparing odds or probabilities shown in different formats across casino and betting sites.
Pro Tips
- European sites typically use decimal odds
- UK sites often use fractional odds
- US sites use moneyline (+/- format)
How to Use the Probability Converter
Enter any value in one of the four formats — percentage, decimal odds, fractional odds, or American odds — and the converter instantly displays the equivalent in every other format. Simply type your number into any field and the remaining fields update in real time.
Understanding the Results
The percentage shows the implied probability of the outcome occurring. Decimal odds represent your total return per unit staked (including your original bet). Fractional odds show net profit relative to your stake. American odds express payouts relative to $100. All four formats convey the same underlying probability — just in different conventions used by different regions and platforms.
Tips for Comparing Odds Across Platforms
When shopping for the best odds, convert everything to the same format so you can compare apples to apples. Decimal odds are easiest for quick mental math — the higher the decimal, the larger your payout but the less likely the event. Always check whether quoted odds include the bookmaker's margin before assessing true value.