Biometric wellness portal

Know your numbers. Shape steadier days.

Four honest calculators, a private daily log and preventive guides, built to explain your heart rate, hydration, energy and sleep in plain language.

Try the toolsStart today's log
Person exercising outdoors
64bpm

Sleep 7.4 h

Water 2.3 L

Resting 58

Sample readout for illustration only

Four calculators, one clear method

Every result shows its formula, range and assumptions.

Heart Rate Reserve

Karvonen training zones from age and resting pulse.

5 zonesOpen

Hydration Target

Daily fluid range by weight, activity and climate.

ml & cupsOpen

BMI / BMR

BMI band plus resting and daily energy estimate.

Metric / imperialOpen

Sleep Architecture

Bedtimes and wake times built on 90-minute cycles.

4–6 cyclesOpen

Daily biometric log

Saved only in this browser (LocalStorage). One entry per date; adding the same date replaces it.

DateSleep hWater LRest HRMoodNote

Preventive guides in four categories

Movement & Cardio

Baselines, zones and desk-break habits.

3 guides

Nutrition & Hydration

Plates, fluids and energy estimates.

3 guides

Sleep & Recovery

Cycles, wind-downs and rest days.

3 guides

Stress & Mindful Habits

Breathing, check-ins and screen limits.

3 guides
Calm meditation session

Built on review standards, not hype

Each formula cites a recognised method, states its limits and avoids diagnosis. Your data stays on your device.

Read our standards