Tool category
Health Tools
Tools for recording and calculating preliminary health information with clear limits and sources
Food Calorie Log
Enter energy per serving from a label or a trusted database, then total breakfast, lunch, dinner, and snacks without sending food data off your device.
Open toolBMI, BMR and TDEE Calculator
Calculate BMI from height and weight, estimate resting energy with the Mifflin–St Jeor equation, and multiply by an activity factor for a TDEE scenario—not a diagnosis or calorie prescription.
Open toolPeriod and Fertile Window Estimate
Estimate the next period start, ovulation date, and possible fertile window from the first day of the last period and average cycle length without labeling any other day as guaranteed safe.
Open toolProtein and Macronutrient Calculator
See the protein RDA from body weight and convert adult protein, carbohydrate and fat AMDR percentages into daily gram ranges—clearly labelled as healthy-adult references, not individualized nutrition targets.
Open toolSleep and Wake-Time Calculator
Count backward from a wake time to plan bedtime or forward from an in-bed time to plan waking, with CDC adult sleep-duration references and no claim that sleep always follows a fixed 90-minute cycle.
Open toolPregnancy Due Date and Gestational Age Calculator
Estimate a due date with the conventional LMP + 280-day method and count complete weeks plus remaining days on a selected date, with a visible warning that ultrasound and clinical assessment may confirm or revise pregnancy dating.
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