This tip calculator will allow you to enter in food, drink and tax amounts, and calculate a tip based on any/all of those amounts. Tip percentages of 0%, 10%, 15%, 18% and 20% can be calculated on food, drink and tax independently, and the bill can be broken out for up to 25 people. The app automatically refreshes any time you make a change to dollar amounts, tip percentage or amount of people. Final bill can also be rounded up or down for those that like an even check.