What does your bet pay?
Pick the bet type, write in your odds and results, and the slip settles every line. Fractional, decimal or American odds.
18+. A calculator shows what a bet would return, not how likely it is to win. Set a budget before you bet. Free help: GamCare (UK, 0808 8020 133) · Gambling Care (Ireland).
Bet types
| Bet | Selections | Bets in it |
|---|---|---|
| Lucky 15 | 4 | 15 |
| Each way | 1 | 2 (win and place) |
| Accumulator | 2–20 | 1 |
| Patent | 3 | 7 |
| Double | 2 | 1 |
| Trixie | 3 | 4 |
| Lucky 31 | 5 | 31 |
| Lucky 63 | 6 | 63 |
| Yankee | 4 | 11 |
| Round robin | 3 | 10 |
| Super Yankee (Canadian) | 5 | 26 |
| Treble | 3 | 1 |
| Heinz | 6 | 57 |
Free bets and exchanges
- Free bet calculatorStake-not-returned returns and free bet conversion.
- Matched betting calculatorLay stakes for qualifying bets and free bets, with underlay and overlay.
- Lay bet calculatorLiability and returns for a lay bet at an exchange.
- Dutching calculatorSplit one stake across several selections for the same return.
- Arbitrage calculatorFind and stake a sure bet across bookmakers.
Tax on winnings (US, 2026)
- Gambling winnings tax calculator (US)2026 federal tax on gambling winnings with the new 90% loss rule.
- Lottery tax calculator (US)2026 federal withholding, tax owed and take-home on a lottery prize.
Canada: who is licensed
- Ontario legal sites listEvery regulated online casino and sportsbook in Ontario, from the iGaming Ontario directory.
- Alberta registered operatorsEvery operator registered with AGLC for online gambling in Alberta.
Every calculator shows its formula and a worked example on its page, so you can check the sum yourself. How they work.