Updated
To work out the return on any bet, simply enter the Odds and the Stake. For example, if you were betting £100 on a 9-4 chance, enter:
Odds = 9 (to) 4, Stake = 100, then click 'Calculate'
The Instant Bet Calculator will then show the return on a:
Win only bet
Winning each way bet (1/4 odds)
Winning each way bet (1/4 odds)
Winning Place bet (1/4 odds)
Winning Place (1/5 odds)
If you're making an Each-way bet, enter the individual stake, but remember that it will cost you double i.e. a '£20 pound each way' bet is, in fact, TWO £20 bets, so it costs you £40. But for the calculator, enter it as £20.
If you're unsure of any of these terms, please check out Betting odds explained and Different types of sports bets.