Tools & Calculators
Get the most out of Optimal Bet's calculators, projections, and analytics tools.
Buying Half Points: When It's Worth It and When It's a Trap
Learn how buying and selling half points on spreads and totals works, when the extra cost is justified, and how to calculate the true price in probability terms.
Round Robin Bets Explained: Every Parlay Combination
Learn what a round robin bet is, how it creates every possible parlay combination from your selections, and when round robins make sense.
Bonus Bet Conversion: How to Maximize Free Bet Value
Learn how bonus bets and free bets work, how to calculate their real cash value, and strategies to convert them at the highest rate possible.
Hedge Betting: How to Lock In Guaranteed Profit
Learn how hedge betting works, when to use it, and how to calculate the exact stake needed to guarantee profit on both sides of a bet.
No-Vig Fair Odds: How to Strip the Sportsbook's Edge
Learn how to calculate no-vig fair odds by removing the sportsbook's margin. Find the true probability of any two-way betting market.
The Kelly Criterion: How to Size Your Bets Like a Pro
Learn the Kelly Criterion formula for optimal bet sizing. Understand how to calculate the mathematically ideal wager based on your edge and bankroll.
Expected Value in Betting: The Math Behind Every Smart Wager
Learn how to calculate expected value (EV) for any sports bet. Understand why +EV betting is the only long-term winning strategy.
Parlay Betting Explained: How Parlays Work and When to Use Them
Learn how parlay bets work, how payouts are calculated, and when parlays actually make sense from an expected value perspective.
Sportsbook Hold Percentage: How Much the House Keeps
Learn what sportsbook hold percentage is, how to calculate it, and why comparing hold across books saves you money over time.
Vig (Juice) Explained: The Hidden Cost of Every Bet
Understand what vig (juice) is in sports betting, how it affects your break-even win rate, and how to minimize its impact on your bottom line.
Implied Probability: What the Odds Are Really Telling You
Learn how to convert betting odds into implied probability, why it matters for finding value, and how sportsbooks bake their edge into the numbers.
American, Decimal & Fractional Odds Explained
Understand the three major odds formats used in sports betting: American, decimal, and fractional. Learn how to convert between them instantly.