Daily water

35 ml per kilogram of body weight plus 350 ml for every 30 minutes of activity. A rule of thumb, not a clinician’s fluid plan.

Weight

Activity today

min

Suggested intake

2.80 L

Recent on this tool

This list is the copy in this browser. Click a result to reopen those fields. The server copy sits behind the site owner's PIN.

No results yet. Use a calculator — the first reading appears here.

An educational estimate. Not medical, tax or credit advice.

Basal metabolic rate from Mifflin–St Jeor, then a TDEE estimate from activity.

Split a daily calorie target into grams of protein, carbohydrate and fat.

Body mass index from weight and height, using the WHO bands for adults.

The US Navy circumference method. A tape-measure estimate, not a DEXA scan.

Devine ideal body weight from sex and height. A reference, not a goal you must hit.

Waist divided by hip, a tape measure, not a DEXA scan.