Free hydration tool
Daily hydration & fluid tracker
Calculate your daily fluid requirement and log intake across waking, training, and recovery windows. Build consistency with real-time streak tracking and private local storage.
Free, interactive, and private. All data is saved directly on your device.
Daily Fluid Intake
—/ 131oz
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Hydration Streak
—days
Consecutive days hitting ≥90% of goal
7-Day Average
—/ day
Private local storage
Target Settings: 131oz / day
180 lbs · moderate activity · temperate climate · +creatine
Daily Hydration Insight · Thursday Focus
Sleep Architecture & Recovery→Evening Hydration Tapering & Sleep
Front-loading your daily fluid intake during daylight hours and tapering 1 to 2 hours before bed minimizes sleep disruptions from nighttime bathroom awakenings.
Today's Fluid Logging
Morning Rehydration
Waking window (target ~33oz)
Pre-Workout & Mid-Day
Pre-training priming (target ~39oz)
Post-Workout & Afternoon
Recovery & fluid balance (target ~39oz)
Evening Wind-Down
Tapered intake (target ~20oz)
0oz of 131oz logged today. Saved locally.
Daily Hydration Tracker email updates
Want these results emailed + weekly insights on training and recomposition?
The science of daily fluid & electrolyte pacing
Hydration status directly influences cellular hydration, blood plasma volume, and neuromuscular excitation. Even mild dehydration (1–2% loss of body mass from fluids) can elevate heart rate at a given workload, reduce maximal strength expression, and accelerate perceived exertion during resistance training.
Pair this daily tracker with our free daily protein tracker and macro calculator to align your nutrition, hydration, and recovery protocols.
FAQ
Quick questions
How is the daily hydration target calculated?
Baseline fluid needs are calculated at approximately 0.55 ounces per pound of body weight (around 35 ml per kg). Additional fluid increments are added for resistance training volume (16 to 32 oz / 500 to 1000 ml), warm climate sweat loss (+12 oz / 350 ml), and creatine monohydrate supplementation (+16 oz / 500 ml).
Why distribute fluid intake across distinct time windows?
Pacing fluid intake across morning, peri-workout, afternoon, and evening windows prevents sudden fluid overload, maintains plasma volume during lifting, and allows a gentle evening taper to prevent sleep disruptions.
How does the daily hydration streak work?
A day counts toward your active streak when your total logged fluid intake reaches at least 90% of your daily calculated goal. All streak calculations and daily history are stored securely in your web browser local storage.
Do I need an account to save my water intake log?
No. All inputs, quick additions, and streak records persist automatically in your browser local storage with zero account creation or cloud sync required.
Frequently asked questions
- How is the daily hydration target calculated?
- Baseline fluid needs are calculated at approximately 0.55 ounces per pound of body weight (around 35 ml per kg). Additional fluid increments are added for resistance training volume (16 to 32 oz / 500 to 1000 ml), warm climate sweat loss (+12 oz / 350 ml), and creatine monohydrate supplementation (+16 oz / 500 ml).
- Why distribute fluid intake across distinct time windows?
- Pacing fluid intake across morning, peri-workout, afternoon, and evening windows prevents sudden fluid overload, maintains plasma volume during lifting, and allows a gentle evening taper to prevent sleep disruptions.
- How does the daily hydration streak work?
- A day counts toward your active streak when your total logged fluid intake reaches at least 90% of your daily calculated goal. All streak calculations and daily history are stored securely in your web browser local storage.
- Do I need an account to save my water intake log?
- No. All inputs, quick additions, and streak records persist automatically in your browser local storage with zero account creation or cloud sync required.
