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Qivtools

Water Intake

Weight plus a desk, workout or hot day. Litres and glasses. A rough guide.

Frequently asked questions

Is 8 glasses the rule?

Eight glasses is a slogan. This uses about 33 ml per kilogram, then adds a little for heat or exercise.

Is this medical advice?

No. Not medical, legal, or financial advice. Thirst, medicine and a clinician come first.