Skip to content
Mathify

Fitness

Instantané, privé et gratuit

Calculatrice: Water Intake.

Utilisez Calculatrice: Water Intake pour obtenir un résultat clair et pratique à partir de vos données.

Cette calculatrice n'est pas encore entièrement traduite ; une partie du texte s'affiche en anglais.

Calcul sur l'appareilSans inscription
01

Saisissez vos valeurs

Les résultats se mettent à jour pendant la saisie.

Hydratation personnalisee

Calcule les besoins selon le poids, l'activite, le climat et la duree d'exercice.

Exercice modere 3-5 jours/semaine

Apport hydrique quotidien

3.5

Litres

3495

Millilitres

118

Onces liquides

Verres par jour (8 oz chacun)

15 Verres par jour (8 oz chacun)

Sources recommandees

Eau simple (80 %) :2.8L
Provenant des aliments (20 %) :0.7L

Repartition suggeree

Matin (7-9 h) :4 glasses
Milieu de matinee (10-12 h) :3 glasses
Apres-midi (13-15 h) :3 glasses
Fin d'apres-midi (16-18 h) :3 glasses
Soir (19-21 h) :2 glasses
Pendant l'exercice :+1 glasses
Bouteilles (500 ml): 7 bottles

Bouteilles (500 ml)

7 bottles
Tasses (250 ml): 14 cups

Tasses (250 ml)

14 cups
Niveau d'hydratation: Optimal

Niveau d'hydratation

Optimal

Facteurs augmentant les besoins en eau :

  • • Consommation de cafeine et d'alcool
  • • Apport eleve en proteines ou sodium
  • • Grossesse ou allaitement
  • • Fievre, vomissements ou diarrhee
  • • Voyage en avion ou haute altitude

Conseils d'hydratation :

  • • Commencez la journee par un verre d'eau
  • • Gardez une bouteille d'eau visible
  • • Programmez des rappels horaires si necessaire
  • • Surveillez la couleur de l'urine (jaune pale ideal)
  • • Augmentez l'apport avant, pendant et apres l'exercice
  • • Mangez des aliments riches en eau (fruits et legumes)

Cite this calculator

Canonical URL: https://mathify.one/fr/fitness/water-intake

Cite as: Mathify. (2026). Calculatrice: Water Intake. https://mathify.one/fr/fitness/water-intake

Use Cases

Daily Hydration Tracking

Use the calculator to determine your baseline daily water intake, then track your consumption to meet your goal.

Example: A 30-year-old active male weighing 80 kg might get a recommendation of 3.5 liters per day.

Adjusting for Exercise

If you exercise regularly, you can input your activity level to get a higher water intake recommendation to compensate for fluid loss.

Example: An athlete training for a marathon may need an extra 500 ml per hour of exercise.

Frequently Asked Questions

How does the Water Intake Calculator determine my daily water needs?
The calculator uses your personal inputs, such as age, gender, weight, and activity level, to estimate the amount of water you should drink each day. It applies general hydration guidelines to provide a personalized recommendation.
Can I use this calculator if I'm pregnant or breastfeeding?
Yes, the calculator may include options for pregnancy or breastfeeding, as these conditions increase fluid needs. However, always consult your healthcare provider for specific advice.
Is the water intake recommendation a one-size-fits-all number?
No, the recommendation is personalized based on your inputs. It's a general estimate, and your actual needs may vary based on climate, health conditions, and physical activity.

Tips & Common Mistakes

Tips

  • Drink water consistently throughout the day, not all at once.
  • Increase your intake during hot weather or when you're physically active.
  • Monitor the color of your urine – pale yellow usually indicates proper hydration.
  • Remember that foods like fruits and vegetables also contribute to your daily fluid intake.

Common Mistakes to Avoid

  • Ignoring your activity level when calculating water needs.
  • Drinking too much water too quickly, which can lead to discomfort.
  • Assuming the calculator's output is a strict rule rather than an estimate.

Last updated: August 13, 2026