ROI (return on investment) measures how profitable your betting is: net profit relative to everything you staked. Enter your totals and the calculator does the rest.
How it works
ROI = (total returns − total staked) ÷ total staked. Returns include the stake and winnings of winning bets. With your number of bets and winners you also get your strike rate and average stake.
Worked example
You staked 500 over 40 bets, 18 of them winners, and got 560 back: net profit is 60, ROI is 12%, strike rate 45% and average stake 12.50.
Good to know
- ROI only means something over a large sample: across 40 bets, luck weighs heavily.
- Keep a complete record, losing bets included, or the figure will be skewed.
See also: Surebet Calculator · Dutching Calculator · Double Chance Calculator · Betting Calculators
A calculator is a decision aid: it guarantees no profit and does not replace your own analysis or bankroll management.
Frequently asked questions
What is a good betting ROI?
A durable positive ROI over several hundred bets is already rare. Be wary of figures from small samples.
What is the difference between ROI and yield?
Here they are the same: net profit divided by total staked.
Should free bets be included?
Track them separately: a free bet has no stake and would distort your ROI.
