Quick, free calculators for the UK competition world — whether you're entering draws and want to know your real odds, or running them and need the numbers to stack up.
For players
Work out what an entry is really worth before you buy the ticket.
All player calculators →Competition Odds Calculator
Work out your real chance of winning a UK prize competition from the ticket cap and how many entries you hold.
Open calculator For playersMulti-Competition Odds Calculator
Entering several competitions at once? See your combined chance of winning at least one prize.
Open calculator For playersInstant Win Odds Calculator
See your chance of hitting at least one instant win prize from the prize count, ticket cap and your entries.
Open calculator For playersCompetition Expected Value Calculator
See whether a competition entry is mathematically good value by comparing what you pay with what you can expect back.
Open calculator For playersCompetition Spending Calculator
Turn a weekly ticket habit into a clear monthly and yearly figure so you always know what competitions really cost you.
Open calculatorFor operators
Model a competition's economics before launch and track it once it's live.
All operator calculators →Competition Profit Calculator
Model revenue, payment fees, prize cost and margin for a competition before you launch it.
Open calculator For operatorsTicket Pricing Calculator
Work backwards from your prize cost and target margin to the ticket price you need to charge.
Open calculator For operatorsInstant Win Allocation Calculator
Work out how many instant win prizes you can seed into a competition before they eat the margin.
Open calculator For operatorsCompetition Marketing ROI Calculator
Turn ad spend, click costs and conversion rate into cost per acquisition and the return you need to break even.
Open calculator For operatorsTicket Sales Velocity Calculator
Project whether a live competition will sell out before the draw from its current daily sales rate.
Open calculatorIf there's a calculator that would make comparing or running competitions easier, tell us and we'll build it.