Health

Calculators and printable logs for fitness, body composition, cycle and pregnancy planning, and doctor-visit prep. Estimates only — never medical advice. Your data stays on your device.

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Fitness & Body Composition

Estimate your TDEE, BMI, body fat, macros, BMR, and heart-rate zones. Body-composition tools that show the formula and keep your numbers on your device.

Cycle, Ovulation & Pregnancy

4 calculators · private

Estimate your fertile window, period dates, due date, and healthy pregnancy weight gain — calculated on your device, with nothing stored and no account.

Doctor-Visit Prep

5 calculators · private

Walk into your appointment organized — log blood pressure, blood sugar, symptoms, and medications, and bring a checklist. Printable, stored only on your device.

All Health tools

BMR Calculator

Basal metabolic rate (Mifflin-St Jeor / Katch-McArdle)

Calorie Deficit Calculator

Calorie deficit + weekly weight-loss projection (TDEE-derived)

Doctor Visit Checklist

Printable visit-prep checklist with starter questions by visit type, a 5-question cap, and optional pulls from your med list and symptom diary.

Pain & Symptom Diary

Daily pain/symptom log with NRS scale, location, and printable export

Period Calculator

Predict your next 3 period dates and fertile window. Privacy-first: no accounts, no tracking, your dates never leave your device.

Pregnancy Weight Gain Calculator

Pregnancy weight gain vs IOM 2009 trimester ranges

Waist-to-Height Ratio

Waist-to-height ratio (WHtR) calculator with Ashwell / NICE NG246 four-band classification. Imperial default; metric toggle; borderline annotation.

Blood Sugar Log

Glucose log with ADA-based banding by reading type (fasting / post-meal / random), 7-day running average, CSV + print export. Stored on this device only.

BMI Calculator

Body Mass Index calculator with WHO adult bands and CDC LMS pediatric percentiles (ages 2-19). Imperial default; one-click metric.

Body Fat Percentage Calculator

Estimate body fat percentage via the US Navy method (height, waist, neck — plus hip for women) with ACE category bands.

Blood Pressure Log

Printable BP log with AHA stage banding, 7-day running average, CSV + print export, and on-device storage only.

Macro Calculator

Protein, carbs, and fat targets from your TDEE. Protein-anchor default with optional preset ratios.

Heart Rate Zone Calculator

Compute training heart-rate zones from age (Tanaka 208 − 0.7·age or 220 − age) and optional resting HR (Karvonen reserve method).

Pregnancy Due Date Calculator

Estimate your due date from LMP, IVF transfer, or known conception date. No accounts, no tracking, no data leaves your device.

Ovulation and Fertile Window Calculator

Estimate ovulation day and fertile window from your last period and cycle length. Privacy-first: no accounts, no tracking, no data leaves your device.

Sleep Cycle Calculator

Bedtime / wake-time planner using the 90-minute sleep-cycle convention plus 14-minute fall-asleep buffer.

TDEE Calculator

Daily calories to maintain weight via Mifflin-St Jeor + activity multiplier, plus a 6-row cut/bulk target ladder (calorie-floored).

Water Intake Calculator

Daily water target by body weight and activity level, with climate adjustment. US ounces or metric milliliters.

Medication List + Wallet Card

Printable medication list with dosage, schedule, and prescriber columns, plus a wallet-card view. Stored on this device only — never sent anywhere.