Estimate a general daily fluid target based on
body weight, exercise and hot-weather exposure.
Unit System
Enter 0 if you do not want an exercise
adjustment.
This only converts the result into an
approximate number of glasses.
Please enter valid values.
Your Estimated Daily Fluid Target
Estimated Daily Fluid
0
litres/day
Total in Millilitres
-
Total in US Fluid Ounces
-
Calculation Breakdown
The result combines a weight-based
baseline with the selected adjustments.
Weight-Based Baseline
-
Exercise Adjustment
-
Heat Adjustment
-
Using your selected glass size:
-
How is water intake estimated?
This calculator uses a simple planning
estimate rather than claiming that one
amount is correct for every adult.
Baseline = Body Weight x 35 mL/kg/day
Exercise Adjustment =
350 mL per 30 minutes of exercise
Hot Weather Adjustment =
+500 mL/day when selected
Example for a 70 kg adult exercising for
30 minutes in normal weather:
Baseline:
70 x 35 = 2,450 mL
Exercise:
+350 mL
Estimated Total:
2,800 mL = 2.8 L/day
Important:
This is a general fluid-intake estimate,
not a medical recommendation. Fluid needs
vary with diet, climate, sweating, exercise,
pregnancy, breastfeeding, illness and other
factors. Some medical conditions involving
the kidneys, heart, liver or fluid balance
may require individualized fluid limits or
targets from a healthcare professional.
Fluids from beverages and water-containing
foods can both contribute to total intake.
Vedicaly's Water Intake Calculator provides an estimate of daily water intake based on the information requested by the calculator. Hydration needs can vary between individuals depending on several personal, lifestyle and environmental factors.
How to Use the Water Intake Calculator
Enter the required information into the calculator and select any applicable options. The calculator will estimate an amount of water based on the values you provide.
Why Is Water Important?
Water is essential for normal body functions. It contributes to processes such as temperature regulation, nutrient transport and the removal of waste products from the body.
What Can Affect Water Needs?
Water requirements can vary with factors such as body size, physical activity, climate, diet, pregnancy, breastfeeding and health conditions. Hot weather and increased physical activity can also increase fluid needs.
Does all daily fluid have to come from drinking water?
No. Daily fluid intake can come from drinking water, other beverages and foods that contain water. The contribution from each source varies depending on a person's diet.
Is a calculated water intake amount exact?
No. A water intake calculator provides a general estimate and cannot determine an exact requirement for every individual. Personal needs may differ depending on activity, environment and health-related factors.
