Units
A unit is a fixed stake, often 1% of a bankroll. Cappers report results in units so their record means the same thing whatever each follower bets. +10u means ten times the standard stake in profit.
Betting ROI and units calculator
Enter your record, average odds and unit size. See your profit in units and money, your ROI and how your win rate compares with break-even.
Profit+5.73u
ROI5.30%
Win rate · 52.4% to break even55.2%
Profit in money$143.18
For information only. Results use the odds you enter and don't include any sportsbook rules or limits.
How it works
ROI and units calculator: the basics
ROI
Return on investment is profit divided by the total amount staked. A 5% ROI means you made 5 for every 100 you bet. Over a large sample, anything consistently above 0% at standard odds is strong.
Break-even win rate
At -110 you need to win 52.4% of bets that don't push just to break even. The calculator works out the break-even rate for your average odds.
Track it automatically
On TailMe, your record block adds up wins, losses, units and ROI for you, month by month, and shows them on your page.
For cappers
Post your plays. Your record adds itself up.
TailMe is the link in bio for cappers: your plays as bet slips, a record with units and ROI worked out for you, and your VIP in one link. Free to start.
FAQ
ROI and units calculator questions
How do I calculate betting ROI?
Divide your total profit by your total amount staked and multiply by 100. If you staked 200 units and made 12 units profit, your ROI is 6%.
What is a good ROI in sports betting?
Over hundreds of bets, a sustained ROI of 3–5% at standard odds is very good. Higher numbers over small samples are usually down to variance.
What win rate do I need at -110?
52.38% of bets that don't push. Anything above that at -110 is profitable.
Do pushes count in ROI?
Pushes return your stake, so they add to the total staked here but not to profit. Some trackers leave them out entirely. Set pushes to 0 to do the same.