Probability Engine
Understand the exact mathematical odds for every prize tier in Mega Millions and Powerball.
Exact Odds for Every Prize Tier
Both Mega Millions and Powerball have 9 prize tiers, from matching just the bonus ball to hitting the full jackpot. Cloverly calculates the exact probability for each tier using combinatorial mathematics with BigInt precision — no rounding, no approximations.
Compare Game Versions
Lottery odds have changed every time the number ranges were updated. Cloverly tracks the full version history for both games and lets you compare odds across eras. See how the jackpot odds shifted when Mega Millions expanded from 56 to 70 main numbers, or when Powerball added its 26th bonus ball.
Empirical vs Theoretical Distributions
Theory says the odds are fixed, but what does the actual data show? Cloverly overlays the theoretical probability distribution with empirical results from 20+ years of draws. See where reality matches expectation and where interesting deviations appear.
Educational Focus
The probability engine is designed to help you understand the math behind lottery games. Every calculation is transparent, and we include explanations of the combinatorial formulas used. Whether you are a student, educator, or curious player, the probability tools make complex math accessible.
Full access to probability tools for both games.