Please ensure Javascript is enabled for purposes of website accessibility Convert Cups to Liters - HydroJug
For the best mobile experience
app image

Download our free mobile app

Convert Cups to Liters

July 11, 2022 4 min read

When you plan out your water intake, you might need to know how to convert cups to liters. It's important to make sure you drink enough water. When you know how to convert cups to liters, you will be able to better measure your intake of water every single day.

Figuring out the best way to measure your water intake is important. Along with knowing the proper measurement, you should also know how much water you need to drink every day. Let's look at how to figure out the conversion factor for a cup and a liter, along with how much water you need each day.

How many cups in a liter?

Before we look at how many cups are found in a liter, it's important to define both.

What is a cup?

A cup is a unit of volume found on the United States customary systems of measurement. While a metric cup is defined as 250 milliliters, a United States customary cup is defined as 236.5882365 milliliters or 1/16 U.S. customary gallon. It's also equal to 8 U.S. fluid ounces or 16 U.S. customary tablespoons.

For water drinkers, the best way to define a cup is to define it as 8 fluid ounces. This will make things easier when you are trying to measure your daily water liquid volume.

What is a liter?

While a liter is accepted for use with the International System of Units (SI), it's not technically an SI unit. One liter is equal to 1/1,000 of a cubic meter. This type of measurement needs conversion or it's simply not that easy to work with. It's a metric unit, which makes it harder to convert into cups, but it can be done.

Most people in the United States have no idea how to use a liter as a measurement for daily water drinking. The metric system is a bit foreign to many and it's more common to measure water as an ounce or other things as a gram.

Converting a Liter to Cups

When you want to know how many cups a liter represents, it's not an easy conversation. One liter is equal to 4.2267528311 cups. Unless you're a math whiz, this makes it a bit harder to track your daily water volume.

Using a liter conversion and using this unit of measurement isn't as easy as simply using a cup to measure your water. It's easier to convert a cup because it equals eight fluid ounces.

Converting a Cup to Liters

One cup will not be able to be converted to liters, as a liter is larger than one cup. You will need more than four cups to make up one liter. These volume units are not the easiest to convert back and forth between. It might be easier to use a pint or a quart to help you measure your water intake every day.

The conversion of cups to a liter can help, but it's a harder type of conversion to work with.

A Few Other Liter Conversions

  • One liter is equal to 0.2641720524 of a gallon
  • One liter is equal to 1.0566882094 quarts
  • One liter is equal to 33.8140227018 fluid ounces
  • One liter is equal to 2.1133764189 pints

Liter conversion isn't as clean or easy to use as converting cups into ounces, gallons, quarts, or pints.

A Few Conversions of a Cup

  • Cups to cubic feet, 1 cup equals 0.0083550347 of a cubic foot
  • Cups to cubic inches, 1 cup equals 14.4375 cubic inches
  • Cups to cubic centimeters, 1 cup equals 236.5882365 cubic centimeters

Nobody would actually use these conversions to measure the volume of water they drink every day. These conversions are harder to work with than liters conversion, and liters to U.S. measurements are not easy conversions.

How many cups of water should I drink in a day?

We have all heard the simple answer to this question, drinking eight glasses of water every single day. The problem is that glasses are not a measurement. You might choose to drink eight 16-ounce glasses of water a day, while someone else drinks eight 10-ounce glasses of water.

According to the Mayo Clinic, men should drink 15.5 cups or 3.7 liters of water per day. Women should drink 11.5 cups or 2.7 liters of water each day.

Other sources, such as, don't believe there is a one-size-fits-all answer to how much water you should drink. The volume of water you will drink each day should fit your needs. It may depend on how active you are if you drink alcohol regularly, or how large or small you are.

How to Best Measure Water Intake?

Your daily water intake is best measured in a way you can understand. If you prefer to measure in liters, that's fine, if it works for you. However, for most people measuring in cups or ounces will be the easiest.

You will want to choose which type of measurement you will use for your daily volume of water. Converting ounces to a liter isn't easy if you're trying to mix measurements. Choose to measure in liters, cups, or ounces, but not all three.

Make Sure You're Never Dehydrated with a HydroJug

You might prefer a motivational water bottle, but a HydroJug makes it simple to get enough water every single day. When you need more than just actual drinking cups, this type of water bottle is a great choice. 

When you choose to use a HydroJug to measure your daily water volume, it gets far easier. These water bottles are large enough that you won't have to refill your water very often. They are also designed to keep your water cold for up to an entire day.

Choose from a variety of HydroJug options to fit your personality and your needs. Once you have your new water bottle, you'll be able to stay hydrated much easier every single day.