Fill your Hydra

A calm way to figure out how much water your body actually needs, and watch the glass rise as you go.

0ml

of 0 ml target

Set your details to begin →

Work out your target

Three inputs, tuned to how your body loses and needs water. Adjust anytime — the bottle updates live.

Body weight 65 kg

Activity level

Sedentary

Light

Active

Intense

Climate

Mild

Warm

Hot / humid

Recommended daily intake

0 ml

≈ 0 glasses (250ml)