Arbitrage Betting Calculator + Live Arbs at US Sportsbooks
Split a stake across two books so either result returns the same amount. When the two prices imply under 100% in total, that amount is more than you staked (before voids, limits and price changes).
Arbitrage calculator
- Stake side A
- $493.98
- Stake side B
- $506.02
- Return either way
- $1,037.35
- Profit
- +$37.35
- Return on stake
- +3.73%
- Implied total
- 96.40%
The two prices imply 96.40% in total, under 100%, so this split returns the same $1,037.35 whichever side wins — before any void, limit or price change. Round stakes to amounts the books accept and re-check the prices before betting.
Using the arbitrage calculator
- Enter the best price for side A at one book and side B at another — same game, same market, same line.
- Enter the total amount you want to put in across both bets.
- If the implied total is under 100%, the stakes shown return the same amount either way. If it is over 100%, the calculator shows what covering both sides would cost.
Before you bet, re-check both prices, round stakes to sensible amounts and make sure both books settle the market the same way. More on the risks in sports betting arbitrage explained; live opportunities are on the arbitrage page.
Hedging a bet you already hold
The same math sizes a hedge: a bet on the other side that locks in a result on an open bet. Use the hedge calculator.
Frequently asked questions
How does an arbitrage calculator work?
It converts both prices to implied probabilities and splits your total stake in proportion to them, so whichever side wins returns the same amount. If the two probabilities add up to under 100%, that amount is more than you staked.
What is a hedge bet?
A hedge is a bet on the other side of a bet you already hold, usually after the price has moved in your favor. An equal hedge locks in the same result whichever side wins.
How do I calculate a hedge stake?
For an equal result either way: hedge stake = original stake × original decimal odds ÷ hedge decimal odds. $100 at +300 (decimal 4.00) hedged at −150 (decimal 1.667) needs a $240 hedge and locks in $60 either way.
Should I always hedge?
Not necessarily. A hedge is usually placed at a price that includes the book’s margin, so on average it costs a little expected value in exchange for certainty. It is a risk decision, not a way to add value.
Live odds boards: NFL odds · NCAAF odds · NBA odds · NCAAB odds · NHL odds · MLB odds · WNBA odds · MMA odds · Cricket odds · EPL odds · MLS odds · UCL odds · Liga MX odds · La Liga odds · Serie A odds · Bundesliga odds · Ligue 1 odds · ATP odds · WTA odds
21+ | Gambling problem? Call 1-800-GAMBLER. Nothing here is betting advice, and no bet or strategy guarantees a profit. Sports betting is legal only in some US states; check the rules where you are. Responsible gambling.