Calculate the stakes for greening up or Back/Lay arbing

Our calculator calculates the level-profit stakes for closing out trades or arbing Back and Lay prices.
It displays the P&L for the Back and Lay bets. as well as the correct commission payable.
It also handles same-market and cross-market calculations, so we believe that it's the quickest, easiest, most accurate and most versatile Back/Lay betting calculator out there. And it's free!



Back/Lay betting calculator instructions

The calculator is pretty intuitive and simple to use, but we've provided some brief instructions below just in case. Don't hesitate to if you have any queries.

Price

Enter both prices (decimal, fraction or US forma).
The Back Price must be higher than the Lay Price to ensure a guaranteed profit.
The calculator automatically converts fractional or US prices to exchange-friendly decimals.

Stake

Enter one stake value.
Enter Lay Stake for trades on a price rise or if there is a constraint (liquidity etc) on your Lay bet in a Back/Lay arb.
Enter Back Stake for trades on a price fall or if there is a constraint (liquidity, max stake limit etc) on your Back bet in a Back/Lay arb.
Enter Total Stake to specify how much you want to spend on a Back/Lay arb or on a cross-market trade.
Enter Total Stake to specify how much you want to spend on a Back/Lay arb or on a same-market trade on a price rise.
If you enter two stake values, the first value will be cancelled (reset to 0.00).

Back and Lay selection on same exchange

Select for same-market bets (placing both bets on the same market on the same exchanghe).
Clear for cross-market bets (different exchanges or exchange + bookmaker).
This setting determines whether commmission is applied to each indiviual bet (cross-market) or to the market profit (same-market).

Commission

Enter the applicable commission rate(s) on your bets.
The default Commission for Lay bets is 5.00%.

Calculate

Press Calculate to view the stake(s) required to win the same Net Profit whatever the result.
Back Bet Profit and Lay Bet Profit show the profits from each of the two bets.
Commission Paid shows the commission deducted by the betting exchange.
Yield is obtained by dividing the Net Profit by the Total Stake and indicates the profitability of the trade or arb.

See our trading and betting instructions for more detailed instructions.