Stainless steel Water Bottle Sizes

We outline the best uses for all water bottle sizes:

• Small stainless steel water bottles

• Medium vacuum water bottles

• Large stainless steel vacuum flask 

How much water you’ll need to consume is an important consideration to make when choosing a insulated water bottle size. 

You’ve probably heard the recommended daily water consumption is 8 glasses of 8 ounces (64 ounces total). 

In reality, the level of water you should drink can vary substantially.

Here are some Fayren general hydration guidelines for different people and circumstances measured in 8 ounce cups:

•  Men should drink roughly 13 cups per day

•  Women should drink about 9 cups per day

•  Pregnant women should aim to drink 10 cups per day

•  For women breastfeeding that goes up to 12 cups per day

•  Children should rink 6 to 8 cups per day

During any strenuous physical activity such as running, you should drink about 4 to 6 ounces every 20 minutes.

Other factors that influence our daily water needs include weather, illness and other health issues. If you’re exposed to long stretches of hot weather, you’ll need to increase your water intake. The same goes for times when you fall ill.

However, for people with conditions such as kidney failure or heart failure, sometimes too much water can negatively impact your health. It’s best to consult with your doctor in these cases.

You can gauge your water bottlesize based on your water intake needs. However, the need for more water doesn’t necessarily mean choosing a bigger bottle, though. 

For instance, runners often carry a waist pack filled with bottles of discreet water amounts.

On the other hand, if you know you’ll be away from your water supply for a long time, or you’re planning to share your water with family or friends, 

you’ll want to choose something that could double as a pitcher.

Let’s take a look at the most common sizes of water bottles available.

Small stainless steel water bottles

12oz drinking water bottle

For some, this is the perfect size for ensuring you’ve met your daily water consumption goals. 

You can simply refill it four to six times throughout the day to stay hydrated.

stainless steel bottles of this size are very portable, too. You can easily clip them on to a backpack or slide them into a cup holder without adding much weight to your pack or purse.

It’s the same size as a grande sized coffee, too, so if you have an insulated bottle, you can ask your barista to fill it with your favorite coffee drink.

Most common uses: home, travel, work, short hikes

Medium Water Bottles

20 oz thermos water bottle

This size is really a happy medium for all people. It’s easy to clean, light weight, and it doesn’t require too many refills. 

You’ll only need to refill it about three times to reach your daily water consumption goals.

Just like its smaller cousin, the 16 oz bottle, this size won’t weigh you down much. It’s a great all purpose size.

Most common uses: home, travel, work, picnics, average length hikes

Large Water Bottles

32 oz sport water bottle

This size will meet half your daily water consumption needs, so you can easily refill it in the morning and the afternoon and you’re set. 

For simplicity of measurement, it’s a great size, but this much water can weigh you down a bit.

If you do a lot of intensive fitness activities such as crossfit or weight training, you’ll need to ensure you have a high intake of water. 

This bottle can help.

Most common uses: fitness and athletic training, day trips, longer hikes

40 oz stainless steel sport water bottles

For long distances on the road or on the trail, this is a great water bottle solution. When you go on picnics, it can easily serve the whole family and if you know you’re not going to access tap water for a while, it’s a great size.

Most common uses: fitness and athletic training, day trips, longer hikes, family activities, camping