
BMI Calculator: Weight Plan
Body Fat, BMR & TDEE Tracker
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Free
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About
Get your BMI in seconds.
Type in your height and weight. You get your BMI, your healthy range, a body fat estimate (US Navy method), plus BMR and TDEE.
Most BMI apps stop there. If your number isn't where you want it, this one keeps going: it turns your result into an actual plan.
YOUR PERSONAL 12-WEEK WEIGHT PLAN
• A daily calorie budget computed from your own TDEE – not a generic 1,200-calorie template
• A projected weight curve: see the date you reach your goal at a safe 0.5–1 lb per week
• 84 tiny daily lessons – why crash diets bounce back, what to do after a bad weekend, how to actually keep weight off. Under 3 minutes each
• Daily habit check-ins – one reminder a day, not twelve, and you can shut it off
• A weight tracker with a smoothed trend line, so one salty dinner never ruins your week
• Widgets for your Home Screen and Lock Screen
• After week 12: the Maintenance Year – one short lesson a month for the part where the weight stays off
CALCULATORS INCLUDED
• BMI with WHO categories and healthy range
• BMR (Mifflin-St Jeor) and TDEE with five activity levels
• Body fat % (US Navy method) and ideal weight range
• Metric and imperial – kg, lbs, cm, ft/in
PRIVATE BY DESIGN
Your height, weight, BMI and answers are calculated and stored on your iPhone, and never leave it. There is no account and no cloud sync. The app sends anonymous usage data – which screens you open, and whether a purchase succeeded – so we can improve it; you can switch that off in Settings. Optional Apple Health sync (read weight from your smart scale, write BMI back) – your Health data never leaves your device.
WEIGHT PLAN PRO
The calculators are always available, full stop. Pro is the plan on top: the 12-week program, lessons, goal-date projection, habit check-ins, and the widget.
BMI is a screening measure and this app does not provide medical advice; consult a healthcare professional before starting any weight-loss program.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://resonancelogic.com/bmiplan/privacy
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What's New in BMI Calculator
1.1.0
September 25, 2026
Add double-tap on the back of the phone to quickly log the weight
4
Subscriptions & In-App Purchases
Weight Plan Pro Monthly
Full plan, lessons, tracking & widget
$9.991 Month
7 Days trial




