Example calculation

Hydration Calculator for 900 body weight

With body weight set to 900, review the result alongside the other input values. Adjust one condition at a time to see what changes.

Inputs used in this example

Body weight (lb)900

Fluid ounces per pound1

Estimated result

Estimated water intake

900 oz

The result for hydration calculator uses the inputs shown above. Change one value at a time to see which assumption makes the biggest difference.

Before using the estimate to make a decision, check whether fees, units, timing, or other real-world conditions fall outside this calculation.

Try a slightly different scenario to see how the result moves — useful for narrowing in on the values closest to your situation.