The Surebets - Arbitrage Calculator has the same calculations background with Dutching Calculator that also has a similar form , but the second will be an independent calculator  with special import and export variables.

In SureBets - Arbitrage Calculator, complete the best odds you will find at various bookers, and it'll export the amounts to be bet on each odds, so that you have a sure profit , if the odds supplement, forming a sure and unbeaten bet.

As soon as you fill in the data, click an empty spot of the screen or you can click the button "Update" to refresh your data and perform the necessary calculations.