Arbitrage Calculator
How To Use This Calculator
Calculate guaranteed profits on 2-way, 3-way, or multi-outcome arbitrage bets. Enter odds from different sportsbooks, and the calculator splits your stake across all sides.
Input odds from different sportsbooks for each outcome. Add more sides for 3-way or multi-outcome markets.
Enter your total stake. The calculator splits it across all sides automatically.
Lock any wager or profit to hold it fixed while the calculator adjusts everything else.
What is Arbitrage Betting?
Arbitrage betting (or "arbing") exploits odds differences between sportsbooks to guarantee profit regardless of the outcome.
When combined implied probabilities add up to less than 100%, an arbitrage opportunity exists. This calculator supports any number of outcomes: 2-way markets (tennis, moneyline), 3-way markets (soccer 1X2, draw no bet), and beyond.
Best Markets for Arbitrage
2-way markets, straightforward to arb
3-way markets with home/draw/away create frequent arb opportunities
Point spreads and totals create arb windows across books
Rapid odds swings open short-lived arbs, especially in-play 3-way markets
Step-by-Step Arbitrage Example
Book A has Player 1 at 2.5, Book B has Player 2 at 2.8. Total bankroll: $1,000.
Common Mistakes to Avoid
Odds can change within seconds. If you place one leg and the other side's odds move, you could lose money. Always have all sportsbook accounts funded and ready.
Some sportsbooks have low maximum bets for certain markets. If you can't place the full calculated stake, the arb breaks. Check limits before committing.
Some books void bets on injuries or walkovers differently. If one leg is voided and the others stand, you lose money. Verify settlement rules match across all books.
True arbitrage requires different sportsbooks. Placing multiple sides at the same book is easily detected and will get your account limited or closed.
Frequently Asked Questions
Is arbitrage betting legal?
Yes, arbitrage betting is completely legal. However, sportsbooks may limit or restrict accounts that consistently arb. Use multiple books and vary your bet sizes.
How much profit can I make?
Typical arbs offer 1-5% profit per bet. While small individually, this adds up over many bets with zero risk of losing.
Do I need accounts at multiple sportsbooks?
Yes. 2-way arbs need at least 2 sportsbooks, and 3-way arbs need at least 3. Having 10+ funded accounts gives you access to more opportunities.
How do I find arbitrage opportunities?
Our Surebets Scanner automatically finds 2-way and 3-way arbs across 50+ sportsbooks in real-time, so you don't have to search manually.
How much money do I need to start arbitrage betting?
You can start with as little as $500-$1,000, but $2,000-$5,000 across multiple sportsbook accounts is recommended. Since typical arbs return 1-5% per bet, larger bankrolls generate more meaningful profits.
Can sportsbooks ban you for arbitrage betting?
Sportsbooks can't ban you since arbing is legal, but they can limit your account: reducing maximum bet sizes or closing your account. To minimize detection, vary your bet sizes, avoid round numbers, and spread activity across many books.
How long do arbitrage opportunities last?
Most arbs last only a few minutes to a few hours before odds adjust. Live betting arbs can disappear in seconds. Speed is critical: using a real-time surebet scanner and having funded accounts ready gives you the best chance of capturing arbs.
Why Arbitrage is Risk-Free
Unlike regular betting, arbitrage guarantees profit because you cover every outcome across different books. This calculator handles 2-way, 3-way, and multi-outcome arbs, distributing your stake so you profit regardless of the result. The only real risk is odds changing before you place all legs.