Amateur gamblers look at how much money they won today. Professional gamblers look at their ROI (Return on Investment) over thousands of bets.
ROI is the only metric that truly measures your skill. It tells you how efficiently you are using your capital. Our ROI Calculator helps you determine if you are a winning player or if you are slowly bleeding chips.
How to Use the ROI Calculator
This tool works for any type of gambling, from Sports Betting (where it is often called “Yield”) to Poker or Crypto trading.
- Total Invested ($): Enter the total amount of money you have bet.
- Note: This is not your deposit amount. It is the sum of all stakes. If you bet $10 five times, your “Invested” amount is $50.
- Total Returned ($): Enter the total amount returned to your account (Stakes + Winnings).
- Analyze the Result:
- Net Profit: The actual cash value you have gained or lost.
- ROI (%): The efficiency of your betting. Positive is good; negative implies a losing strategy.
Example: The Reality Check
Let’s say you had a busy weekend betting on the Premier League.
- You placed 20 bets of $50 each.
- Total Invested (Turnover): $1,000.
You won some, you lost some. At the end of the weekend, your account balance shows returns of $1,050.
- Net Profit: +$50.
- ROI Calculation: $50 / $1,000 = 5.00%.
An ROI of 5% is excellent for sports betting. It means for every $100 you risk, you keep $5 in profit on average. If your ROI is -5%, you are losing $5 for every $100 bet.
Frequently Asked Questions (FAQ)
What is a “good” ROI in sports betting?
It depends on the market difficulty.
Professional Level: 3% to 7% over thousands of bets is considered elite.
High Roller: Even 1-2% is acceptable if the volume (turnover) is huge.
Warning: Anyone claiming an ROI of 20%+ long-term is likely lying or has a very small sample size.
What is the difference between ROI and Yield?
In finance, ROI is usually calculated on the starting Bankroll. In European sports betting, ROI (or Yield) is calculated on the Total Turnover (sum of all bets). This calculator uses the Turnover method, which is the standard for evaluating betting performance.
Can I have a positive ROI on Slots?
In the short term, yes (due to variance/luck). In the long term, absolutely not. Slots have a negative mathematical expectation (RTP < 100%), so your long-term ROI will always converge to the house edge (e.g., -4%).