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Whether it’s for a server at your favorite restaurant or the delivery guy who drops off your new washer and dryer, leaving a tip requires doing math.
To make things easier, we created a calculator so you can work tips into your budget — based on your desired tipping percentage.
Keep in mind: The standard tip for a restaurant server is 15%-20%, based on the experience, according to Elaine Swann, lifestyle and etiquette expert and founder of the Swann School of Protocol. For most other service interactions, tips are a nice gesture to thank someone for going above and beyond, but not necessary, she says.
See more financial calculators from NerdWallet.