E-Cig Savings Calculator Make The Switch & Save! Wondering how much money you could save by switching from tobacco to e-cigarettes? Use our e-cig savings calculator to see how much you could save per month, and per year. Simply enter the number of cigarettes you smoke a day and how much you spend on a pack of 20 to find out how much you can save! Cigarettes Per Day: Price Per Pack (of 20): £ Price per e-juice bottle £ One e-juice bottle equals pack(s) Ready to make the switch? Check out our range of E-Cig Starter Kits Impressed with the results? Why not tell us how much you saved over on Facebook and Twitter.