There are a variety of reasons why you might need to convert OZ to liter. Perhaps you're trying to convert a recipe from cups to liters, or you're trying to figure out how much water you should drink in a day. Whatever the reason, converting OZ to liter is a simple process that can be done with a few quick calculations. Here's a step-by-step guide on how to convert OZ to liters: Multiply the number of OZ by 0.0295735. Divide the result by 1000. The final answer is the number of liters. For example, if you want to convert 16 OZ to liters, you would multiply 16 by 0.0295735 and then divide the result by 1000.