Convert Any Odds
Enter a price in any format and read every equivalent instantly.
How to Use This Calculator
- Choose the odds format you want to enter (Decimal, Fractional, or American)
- Type the odds value into the input field
- Instantly see the same odds across all three formats, plus the implied probability
Formula
Decimal to Fractional: (Decimal - 1) expressed as a simplified fraction
Decimal to American:
- If Decimal >= 2.00: American = (Decimal - 1) × 100
- If Decimal < 2.00: American = -100 / (Decimal - 1)
Implied Probability: 1 / Decimal Odds × 100%
Frequently Asked Questions
How does this differ from the Betting Odds Calculator?
Both run the exact same conversion. This one is the stripped-down version, dialled in for fast odds conversion with no extra features.
Which odds format is the most widely used?
Decimal odds are the norm across Europe and Australia, Fractional odds are the tradition in the UK and Ireland, and American odds dominate in the United States.
How do I convert American odds to Decimal?
Positive American odds: divide by 100 and add 1. Negative American odds: divide 100 by the absolute value and add 1. For instance, +150 turns into 2.50 and -200 turns into 1.50.