Daily Water Intake Calculator
This calculator is designed to help you estimate how much water you should drink a day based on factors like your weight, activity level, and location. Hydration is a key part of healthy weight loss. Start a consultation to see if Weight Loss by Hims is right for you.
Daily water intake should usually be between half a gallon (8 cups) and a gallon (16 cups). One cup of water equals 8 fluid ounces.
The Water Intake Calculator is only an estimate of daily water intake based upon factors, including age, activity level, weight, environment, and health conditions. The calculator may not accurately reflect the daily water intake of individuals of a specific race/ethnic group, those with high muscle mass, pregnant women, children, the elderly, or those with specific health conditions. The calculator should not be used as a sole diagnostic tool.
The calculator does not determine eligibility for any weight loss medications or treatments provided via the Hims platform. Consultation with a healthcare provider is required to assess suitability for any medical treatment based on individual health and medical history.
Overview
Why is water important for health?
Water is vital for all of your body’s functions, physical and mental, and it actually makes up about 60% of your body. There are many benefits to drinking water—it helps improve blood flow, aid digestion, flushes out toxins from your organs, and more.
How is daily water intake for men calculated?
Daily recommended water intake depends person to person, and is influenced by factors like:
Activity level
If you are exercising, moving a lot throughout the day, or doing intense physical activity, you’ll need to drink more water.
Seasons and weather
You often need more water in warmer months than cooler ones since you’ll likely be sweating more.
Health
If you are sick and losing fluids by vomiting or diarrhea, drinking more water helps you rehydrate and your body recover. If you have a health condition like heart failure or kidney disease though, you may need to limit your water intake.
Signs you are hydrated
The color of your urine is a good indicator on if you’re drinking enough water—it should be clear or light yellow. You can also check out more tips for staying hydrated.
Signs you are dehydrated
If you are not drinking enough water, your urine may be dark and have a strong odor. A few other signs to watch out for:
Constipation
Dizziness
Dry mouth
Fatigue
Severe dehydration is considered a medical emergency that requires immediate attention. Some symptoms include:
Confusion
Fainting
Rapid heartbeat
Rapid breathing
How does drinking water help with weight loss?
Studies show that drinking water can help increase your metabolism, reduce your appetite, and increase fat burning. Water also doesn’t have any calories, so opting for it instead of sugary drinks will help reduce your calorie intake.
Drinking more water is just one part of healthy weight loss, other things to prioritize include nutrition, exercise, and sleep.
If appropriate, prescription weight loss medications can help curb cravings and reduce food noise, which can contribute to weight loss.