Enjoy Free Shipping on Kul Orders!

Shop Kül Learn
My Cart
away from free shipping.
Your shopping cart is empty!
Continue Shopping
You May Also Like
Kül CO2 2-Pack – Exchange $29.98
Add to Cart
Kül Ultimate $75.00
Add to Cart
Kül SideKick $79.99
Add to Cart
Total
Shipping & taxes calculated at checkout.
American Express Mastercard Visa
Back to Blog

How Much Water Should Kids Drink?

July 20, 2025

Back-to-School Edition: Keep Kids Hydrated and Focused All Day

It’s back-to-school season. That means new pencils, fresh notebooks, lunchbox snacks - and one very important item that often gets overlooked: water.

Between recess, PE, classroom learning, and after-school activities, kids are burning energy nonstop. And just like adults, they need to stay hydrated to feel - and function - their best. But how much water should kids actually drink each day? Let’s break it down.

Stick around until the end for a fun hydration checklist you can post on the fridge.

Why Hydration Matters More Than You Think

Water is like a secret superpower for kids. It helps with:

  • Energy levels

  • Focus and mental clarity

  • Digestion and regularity

  • Temperature regulation during outdoor play

  • Immune system support

In short, hydrated kids are happier, healthier, and more focused in school.

How Much Water Should Kids Drink Each Day?

There isn’t a one-size-fits-all answer, but here are some general daily water goals based on age:

  • Ages 1 to 3: About 4 cups (32 ounces)

  • Ages 4 to 8: About 5 cups (40 ounces)

  • Ages 9 to 13: Around 7 to 8 cups (56 to 64 ounces)

  • Ages 14 to 18: Up to 8 to 11 cups (64 to 88 ounces)

This includes water from drinks and food combined. Keep in mind that active kids or kids in hot climates may need even more to stay properly hydrated.

Easy Ways to Help Kids Drink More Water

Getting kids to drink enough water doesn’t have to be a daily struggle. Here are some easy tips to make it part of the routine.

1. Build water into daily habits
Encourage water first thing in the morning, with meals, after school, and before bed.

2. Let them pick a fun water bottle
A cool bottle with their favorite character or color can make all the difference. Look for ones with ounce markers so they can track their progress.

3. Infuse with natural flavor
Add slices of fruit like strawberries, oranges, or cucumbers to make water more exciting without added sugar.

4. Keep it cold and easy to access
Kids are more likely to drink water if it’s chilled. A countertop water dispenser at home makes it simple for kids to fill up on their own throughout the day.

Signs of Dehydration in Kids

Kids don’t always recognize when they’re thirsty, so it’s important to keep an eye out for the following signs:

  • Headaches

  • Tiredness or sluggishness

  • Dry mouth or lips

  • Trouble focusing

  • Dark yellow urine

If you notice any of these symptoms, it may be time for a water break.

What About Juice, Milk, or Sports Drinks?

While milk is a nutritious part of a child’s diet and sports drinks can help after intense physical activity, water should always be the go-to drink throughout the school day. Juice - even 100 percent juice - adds extra sugar and doesn’t hydrate as well as plain water.

Hydration Challenge for Kids

Try this fun back-to-school hydration challenge. Use it as a daily checklist or stick it on the fridge to track progress:

  • Morning: Drink a glass of water after brushing teeth

  • Lunch: Finish one water bottle during lunchtime

  • After School: Refill and drink while doing homework

  • Evening: One more glass of water after dinner or before bed

Make it a game. If they check off each step all week, let them pick a new fruit to infuse their water with for the weekend.

Tips for Back-to-School Hydration Success

Here are a few more ways to keep hydration front and center:

  • Pack a water bottle every day

  • Ask teachers if water bottles can stay at desks

  • Include water-rich snacks like oranges and cucumbers

  • Keep water cold and easily accessible 

  • Lead by example - when kids see adults drinking water, they’re more likely to join in

Final Thoughts

Water might not be the flashiest school supply, but it’s one of the most essential. As your kids head back into the classroom, don’t forget to fuel their minds and bodies with plenty of hydration.

Helping kids build healthy water habits now sets them up for a stronger school year and a lifetime of wellness.

Here’s to a happy, hydrated school year.