Figuring out how much you should tip—or if you should tip at all—is one of the more anxiety-producing aspects of wining and dining your way through a foreign country. In some countries, tipping is virtually unheard of, while in others, it’s more or less required. Since it can be awkward to ask a waiter, “How much am I supposed to tip you?”, it’s best to research before you go.

Gocompare.com, an insurance research site, put together a handy guide to tipping across the world. It includes data on common tipping practices for food and drink, taxis, and hotel services in almost 50 countries.

A Google Map with flag pins corresponding to each country in Europe
Gocompare.com

A table of tipping guidelines for hospitality, taxis, and hotels
gocompare.com

Bear in mind that tipping practices can vary regionally, too. In the U.S., a 15 percent tip may be standard in many cities, but 20 percent is considered customary in New York City, for instance. When in doubt, err on the side of generosity. And don’t forget to say thank you!

Check the guide out here.