Do the maths yourself
Every calculator runs in your browser on the same engines that power the game pages. Nothing you type is sent anywhere.
Universal lottery number generator
Crypto-secure random lines for every world game — Powerball, Mega Millions, EuroMillions, Oz Lotto, Lotto 6/49 and more — with rejection sampling and a link to the odds.
Lottery odds calculator
Full division breakdown for any world game (or a custom format): derived odds, probabilities, and cumulative any-prize odds.
Expected value calculator
Jackpot, ticket price, tax and estimated sales in — expected value per ticket out, with co-winner sharing modelled.
Break-even jackpot calculator
The jackpot at which EV turns positive — compared against sourced historical jackpots so you can see if it is realistic.
How many tickets to win
How many distinct lines you'd need for a better-than-even chance at the jackpot — and the cost of winning twice.
Cost-per-chance comparator
Every world lottery ranked by ticket price ÷ probability — jackpot or any prize. Sortable value metric.
Randomness tester
Paste draw history (or CSV with dates) and get a chi-square verdict with statistic, df and p-value.
Frequency & z-score analyser
Ball-by-ball observed vs expected counts with z-scores and hot/cold/normal verdicts — from imported draw history.
Syndicate split calculator
Shares, contributions and payout per member — including unequal stakes.
System & wheel cost calculator
Combinations, cost, division-1 odds and multiplier for published system sizes — or any custom pick-k format.
Lump sum vs annuity calculator
Present value of the annuity stream against the cash option, at your discount rate and tax rates.
After-tax prize calculator
What a headline prize becomes after an effective tax rate — with sourced country tax notes and take-home.
Invest-instead calculator
What your weekly ticket spend becomes if invested at a chosen return — chart and table over 5–40 years.
Number-sharing risk checker
Flags birthdays, sequences and popular patterns — and a crowding hint for how heavily a win might be shared.
Odds comparison visualiser
Your jackpot odds against exactly computable events — log-scaled bars plus the working for each comparison.
Scratch card EV calculator
Enter the published prizes-remaining table and tickets outstanding — get the expected value per ticket.
Draw simulator
Play thousands of simulated draws with a starting bankroll — watch the balance and ROI using real division rules.
Lifetime spend calculator
What you've spent on tickets so far, what it statistically returned, and where to get help if spending is a problem.
Jackpot tracker
Current entered jackpots across the games we track, ranked by expected value per ticket.
Prize-linked savings comparator
Premium Bonds and prize-linked savings vs tickets — product table plus expected prize income on a holding.