Daily Water Intake
The usual guide is 30–35 mL per kilogram, plus roughly 350 mL for every 30 minutes of exercise. The count of 250 mL glasses is shown as well.
Your numbers
Water
2,505mL
Result
2,145mL
Count
10
Formula
Water = Weight (kg) × 33 + Minutes × 12
Food and soup contribute water too, so you need to drink less than this. Heart or kidney conditions may require limits.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Weight (kg)The second weight you are comparing against. | 65 | 10 ~ 300 |
| MinutesA duration in minutes — take care not to mix it with hours. | 30 | 0 ~ 300 |
Step by step
Quick reference table
Results when only Weight (kg) changes and everything else stays put.
| Weight (kg) | Water (mL) | Result (mL) | Count |
|---|---|---|---|
| 32.5 | 1,433 | 1,073 | 6 |
| 48.8 | 1,970 | 1,610 | 8 |
| 65 | 2,505 | 2,145 | 10 |
| 97.5 | 3,578 | 3,218 | 14 |
| 130 | 4,650 | 4,290 | 19 |
What each result means
| Result | At default values |
|---|---|
| Water (mL)Water to drink in a day; water inside food is not counted. | 2,505 |
| Result (mL)What the formula gives back — the answer this page is for. | 2,145 |
| CountA plain count of items; it often ends up as the denominator. | 10 |
Common mistakes
Food and soup contribute water too, so you need to drink less than this. Heart or kidney conditions may require limits.
Glossary
- Weight (kg)
- The second weight you are comparing against.
- Minutes
- A duration in minutes — take care not to mix it with hours.
- Water
- Water to drink in a day; water inside food is not counted.
- Result
- What the formula gives back — the answer this page is for.
- Count
- A plain count of items; it often ends up as the denominator.
Frequently asked questions
Q. How is Daily Water Intake calculated?
Water = Weight (kg) × 33 + Minutes × 12 — The usual guide is 30–35 mL per kilogram, plus roughly 350 mL for every 30 minutes of exercise. The count of 250 mL glasses is shown as well.
Q. Can you walk through an example?
With Weight (kg) 65, Minutes 30, the answer is Water 2,505mL.
Q. What do I need to enter?
Enter Weight (kg), Minutes. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Weight (kg) moves the answer to Weight (kg) 32.5 → Water (mL) 1,433 and Weight (kg) 130 → Water (mL) 4,650. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
Food and soup contribute water too, so you need to drink less than this. Heart or kidney conditions may require limits.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.