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To be a profitable bettor, you don’t need to win every time. You just need to win often enough relative to your odds.
This calculator answers the golden question: “What percentage of my bets must win for me to break even?” It also calculates the “Strike Rate” needed to achieve a specific ROI goal (e.g., 5% profit).
Required Win Rate
The Math of Breaking Even
The formula for break-even is: 1 / Decimal Odds.
Common Benchmarks
- Odds 1.91 (-110): You must win 52.38% of the time to break even. Pros aim for 55%.
- Odds 2.00 (Even): You must win 50.00% of the time.
- Odds 3.00 (+200): You only need to win 33.33% of the time.
Why this matters: If you bet on underdogs at 3.00 and win 40% of your bets, you are crushing the bookie, even though you lose more often than you win. This tool helps you visualize that relationship.
Frequently Asked Questions (FAQ)
What is a “Strike Rate”?
Strike Rate is simply your win percentage (Wins / Total Bets). If your actual Strike Rate is higher than the “Break-Even Win Rate” shown by this calculator, you are profitable.