Betting ROI Calculator
Calculate your betting return on investment (ROI). Track wins, losses, and analyze your long-term betting performance.
Betting ROI Calculator
Track your betting performance and calculate return on investment
💡 Track your bets over time to get accurate ROI. The more bets you track, the more meaningful your results become.
Formula
ROI = ((Total Returned - Total Wagered) / Total Wagered) × 100ROI measures your profit as a percentage of total amount wagered. Positive ROI means you're profitable.
How to Use
- 1Enter totals — Input your total amount wagered and total amount returned.
- 2Enter bet count — Input the total number of bets and how many you won.
- 3Enter average odds — Input your average decimal odds across all bets.
- 4Analyze results — Review your ROI, win rate, and performance analysis.
Frequently Asked Questions
What is a good betting ROI?
Professional sports bettors typically achieve 2-10% ROI over the long term. Even 3-5% ROI is considered excellent. Anything consistently above 0% means you're beating the market.
How many bets do I need for meaningful ROI?
At least 500-1000 bets are needed for statistically significant results. With fewer bets, variance can make even losing strategies appear profitable (or vice versa). Track your bets over months or years.
What is the break-even win rate?
The break-even win rate is the percentage of bets you need to win to neither profit nor lose. At -110 odds (1.91 decimal), you need to win 52.4% of bets to break even.
What are units in betting?
A unit is a standardized bet size, typically 1-2% of your bankroll. Tracking results in units allows comparison across different bet sizes and bankrolls. +10 units means you've profited 10 times your standard bet size.
Why might my ROI be misleading?
Short-term ROI can be heavily influenced by variance (luck). A small sample size, betting on heavy favorites, or a hot streak can all create misleading ROI figures. Always consider sample size when evaluating performance.