Free lottery calculators
Eight mathematical tools for understanding lottery games — odds, expected value, taxes, payouts, and number sets. No signup, no prediction claims, just the math.
Odds Calculator
The odds of matching each prize tier. Fixed mathematical facts about the game — they don't change based on which numbers you pick.
Open toolExpected Value
The average return on a ticket. For lottery games this is essentially always negative — you can expect to lose money on average.
Open toolTax Calculator
An estimate of federal and state tax on winnings and your take-home. An estimate, not tax advice — consult a professional.
Open toolLump Sum vs Annuity
Compares after-tax cash vs the annuity. Ignores what you could earn investing the cash, and inflation. Not financial advice.
Open toolNumber Generator
Randomly generated picks. Every combination is equally likely — these are for convenience, not a prediction.
Open toolWheeling
Tickets that guarantee a match tier only if the draw falls within your chosen numbers. Wheeling does not change how likely that is.
Open toolPool Split
Splits a prize into whole cents across the pool, summing exactly to the total. Not financial advice.
Open toolNumber Patterns
Describes your number set. No composition makes a set more or less likely to be drawn — every combination is equally likely.
Open toolAbout these tools: PatternSight is mathematical number analysis, not advice. Outcomes are not guaranteed. These calculators describe the fixed mathematics of lottery games; no tool can change the odds of any draw. 18+. If gambling is a problem for you, call 1-800-GAMBLER.