Betting Calculators
Professional sports betting tools to help you make smarter bets. All calculators are free and work with decimal, fractional, and American odds.
Basic
Essential betting calculators for beginners
Advanced
Professional tools for experienced bettors
Free Play Value Calculator
Calculate the risk-free real dollar profit that can be obtained from betting and hedging a free play bonus of any size.
Kelly Criterion Calculator
Calculate the optimal bet size based on your edge and bankroll using the Kelly Criterion formula.
Sports Betting Arbitrage Calculator
Find and calculate arbitrage opportunities between two bookmakers. Enter the odds and total stake to see if a profitable arbitrage exists.
Value Betting Calculator
Calculate the expected value (EV) of a bet by comparing your estimated probability against the bookmaker's odds.
Multi-bet
Calculators for combination bets
Risk Management
Tools to protect and manage your bankroll
Analysis
Statistical analysis and probability tools
Bet Simulator Calculator
Simulate betting outcomes with comprehensive statistical analysis including confidence intervals, risk of ruin, and bankroll distribution charts.
Poisson Distribution Calculator
Calculate probabilities of events occurring based on their expected average rate.
Generators
Random number generators for lottery and daily games
⭐ EuroMillions Number Generator
Generate random EuroMillions numbers with our free official format generator. Pick 5 numbers from 1-50 plus 2 Lucky Stars from 1-12. Includes country bonuses and advanced statistics.
Keno Number Generator
Generate random Keno cards from 1-80. Select your spots, apply filters, and create multiple cards instantly.
Lottery Number Generator
Generate random lottery numbers with customizable ranges and advanced filters. Perfect for Powerball, Mega Millions, or any lottery game.
Mega Millions Number Generator
Generate random Mega Millions numbers with our free official format generator. Pick 5 numbers from 1-70 plus 1 Mega Ball from 1-25. Includes Megaplier option.
Pick 3 Number Generator
Generate random Pick 3 numbers with multiple play types. Choose Straight, Box, Combo, or Pairs. Add Fireball for more ways to win.
Pick 4 Number Generator
Generate random Pick 4 numbers with multiple play types. Choose Straight, Box, Combo, or Pairs. Add Fireball for more ways to win.
Powerball Number Generator
Generate random Powerball numbers with our free official format generator. Pick 5 numbers from 1-69 plus 1 Powerball from 1-26. Includes Power Play multiplier option.
Thunderball Number Generator
Generate random Thunderball numbers with our free generator. Pick 5 numbers from 1-39 plus 1 Thunderball from 1-14. Includes hot/cold statistics, frequency analysis, and syndicate pool generator for group play.
UK National Lottery Number Generator
Generate random UK Lotto numbers with our free generator. Pick 6 numbers from 1-59. Includes Millionaire Maker raffle code, hot/cold statistics, frequency analysis, and syndicate pool generator for group play.
General
General purpose betting calculators
Asian Handicap Calculator
Calculate potential outcomes for Asian handicap bets including quarter handicaps, half handicaps, and whole handicaps.
Cash Out Calculator
Determine the optimal timing and value for cashing out your bet. Compare sportsbook cash out offers against fair market value to make informed decisions.
Drawdown Calculator
Analyze your betting bankroll drawdown to understand maximum losses, recovery requirements, and manage risk effectively during losing streaks.
Dutching Calculator
Calculate optimal stakes for dutching across two or three outcomes.
Half
Calculate the value of buying or selling half-points for MLB, NCAAF, NFL, NCAA Basketball and NBA odds and totals.
Horse Racing Calculator
Calculate potential payouts for Win, Place, Show, Exacta, Trifecta, Superfecta, and Quinella bets. Perfect for planning your horse racing betting strategy.
No
Calculate true probabilities and fair odds by removing bookmaker margin.
Over/Under Calculator
Analyze over/under (totals) betting markets, calculate potential payouts, and understand market margins.
Reverse Bet Calculator
Calculate reverse bet outcomes, including maximum win/loss potential and detailed scenario analysis for all possible game results.
Risk of Ruin Calculator
Calculate the probability of losing your entire betting bankroll based on your win rate, odds, and bet sizing strategy. Essential for long-term bankroll survival.
Spread/Moneyline Calculator
Convert between point spreads and moneylines for various sports using historical data analysis.
Streak Calculator
Calculate the probability of achieving a specific winning streak length within a series of bets.
Need Help Finding the Right Calculator?
Not sure which calculator to use? Here are some quick recommendations:
Start with Bet Conversion and Implied Probability calculators
Use the Arbitrage and Hedge calculators
Try Parlay and Round Robin calculators