Best Weight Loss Calculator Apps

249+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated August 2026

Out of 249+ weight loss calculator apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Weight Loss Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (28K)NoYesAug 2026
2Happy ScaleHappy ScaleFree4.9★ (58K)NoYesAug 2026
3Calorie Deficit CalculatorCalorie Deficit CalculatorFree4.7★ (3.7K)NoYesAug 2026
4Monitor Your WeightMonitor Your WeightFree4.8★ (23K)YesYesAug 2026
5Weight Diary LiteWeight Diary LiteFree4.8★ (7.1K)YesNoAug 2026
6BMI Calculator ~ Weight LossBMI Calculator ~ Weight LossFreeYesNoMay 2026
7Body Visualizer: Weight LossBody Visualizer: Weight LossFreeNoYesAug 2026
8BMI Weight Loss CalculatorBMI Weight Loss CalculatorFree5.0★ (2)NoNoMay 2026

Top Picks for Weight Loss Calculator

BMI Calculator – Weight Loss#1

BMI Calculator – Weight Loss by Steffen Mayer

Calculate your ideal weight
Editor's Choice
💪 Health & Fitness
4.5😞(28K ratings)
FreeIn-App Purchases
BMI Calculator – Weight Loss screenshot 1
BMI Calculator – Weight Loss screenshot 2
BMI Calculator – Weight Loss screenshot 3

Calculate and track your Body Mass Index (BMI) with this user-friendly app. It provides personalized health insights, ideal weight recommendations, and supports various units and classification systems. Monitor your weight journey and understand health risks.

What We Love

  • 🚀 Easy to use
  • 📊 Helps track progress
  • 💪 Motivates weight loss

Room to Improve

  • 🤕 Can cause insecurity
  • 🚫 Inaccurate BMI calculations
  • 🚨 Promotes unhealthy behaviors
Happy Scale#2

Happy Scale by Front Pocket Software LLC

Weight Loss Tracker
Strong Contender
💪 Health & Fitness
4.9😊(58K ratings)
FreeIn-App Purchases
Happy Scale screenshot 1
Happy Scale screenshot 2
Happy Scale screenshot 3
Happy Scale screenshot 4
Happy Scale screenshot 5
Happy Scale screenshot 6

This app helps you understand your weight loss journey by analyzing scale fluctuations. It smooths out daily variations to reveal your true progress, predict future weights, and break down goals into manageable milestones.

What We Love

  • 👍 Excellent weight loss support tool
  • 👍 Motivating and engaging to track weight
  • 👍 Provides great insights and predictions
  • 👍 Smooths out weight fluctuations

Room to Improve

  • 🐛 Reminders don't work for some users
  • 💰 Subscription model is expensive for some
Calorie Deficit Calculator#3

Calorie Deficit Calculator by Starry Web Ltd

Oatsy Macro Tracker Diet Coach
Worth Considering
💪 Health & Fitness
4.7😐(3.7K ratings)
FreeIn-App Purchases
Calorie Deficit Calculator screenshot 1
Calorie Deficit Calculator screenshot 2
Calorie Deficit Calculator screenshot 3
Calorie Deficit Calculator screenshot 4
Calorie Deficit Calculator screenshot 5
Calorie Deficit Calculator screenshot 6

This app helps you achieve your health and nutrition goals by tracking your food intake, water consumption, and exercise. It offers a comprehensive nutrition database, custom diet plans, and AI-powered food scanning to make logging easier.

What We Love

  • 🚀 Simple and easy to use
  • 👍 Helpful for tracking calories and macros
  • 🚀 Efficient barcode scanning
  • 👍 Integrates with Apple Health

Room to Improve

  • 🐛 Bugs and glitches with the app
  • 🔍 Limited food options, especially for cultural dishes
  • 🔍 Inaccurate macro calculations

More Weight Loss Calculator apps to explore

4
Monitor Your Weight
Monitor Your Weight
Monitor Your Weight
Track weight & body measures
Free

Track your weight and body measurements to achieve your fitness goals. This app offers detailed statistics, personalized ideal weight suggestions, and the ability to manage multiple profiles. It supports various units and integrates with digital scales and HealthKit.

Track single or multiple profilesTrack body measurementsCalculate ideal weight
💪 Health & Fitness
(23K)
free with in-app purchases
5
Weight Diary Lite
Weight Diary Lite
Weight Diary Lite
daily weight loss tracker
Free

Track your weight loss journey with this intuitive app. It helps you monitor daily weight entries, visualize progress with a trend line, and estimate time to reach your goals without calorie counting. Includes calculators for goals and calories, plus privacy features.

Daily weight trackingProgress trend line visualizationGoal and calorie calculators
💪 Health & Fitness
(7.1K)
ad-supported
6
BMI Calculator ~ Weight Loss
BMI Calculator ~ Weight Loss
BMI Calculator ~ Weight Loss
BMI Calculator App
Free
💪 Health & Fitness
(0)
7
Body Visualizer: Weight Loss
Body Visualizer: Weight Loss
Body Visualizer: Weight Loss
Calorie scanner, Steps tracker
Free
💪 Health & Fitness
(0)
8
BMI Weight Loss Calculator
BMI Weight Loss Calculator
BMI Weight Loss Calculator
Weight Loss Tracker
Free

Calculate your Body Mass Index (BMI) using your weight, height, age, and gender. Track your daily weight and view progress through charts and statistics to find your ideal healthy weight. This app helps identify risks associated with being overweight or obese.

BMI calculationWeight trackingProgress charts
💪 Health & Fitness
(2)
free
9
WeightDrop Weight Loss Tracker
WeightDrop Weight Loss Tracker
WeightDrop Weight Loss Tracker
Health Journal, Log & Diary
Free

This app helps you track your weight journey, whether you aim to lose or gain. It offers a simple interface for daily logging, history review, and progress visualization towards your goals. Features include reminders, unit support, and integration with health platforms.

Clever App SetupQuick & Easy Weight AddingWeight History & Editing
💪 Health & Fitness
(4K)
free with in-app purchases
10
TDEE Calculator + BMR + BMI °
TDEE Calculator + BMR + BMI °
TDEE Calculator + BMR + BMI °
dailykcal: tdee, bmr, body fat
$1.99
$2.99 | 33% OFF
💪 Health & Fitness
(0)
11
AI Weight Loss Tracker - BMI
AI Weight Loss Tracker - BMI
AI Weight Loss Tracker - BMI
by Ahmed Hassan
Free
💪 Health & Fitness
(0)
12
BMI Calculator - Lose Weight
BMI Calculator - Lose Weight
BMI Calculator - Lose Weight
#1 Weight Loss/Gain Tracker
Free
💪 Health & Fitness
(0)
13
Weight Tracker, BMI calculator
Weight Tracker, BMI calculator
Weight Tracker, BMI calculator
Lose, scale, gain body tracker
Free
💪 Health & Fitness
(0)
14
BMI Calculator to Weight Loss
BMI Calculator to Weight Loss
BMI Calculator to Weight Loss
Calculate Ideal Weight (BMI)
Free
💪 Health & Fitness
(0)
15
BMI Calculator -weight loss.
BMI Calculator -weight loss.
BMI Calculator -weight loss.
by CodesBunny
Free
💪 Health & Fitness
(0)
16
BMI Calculator for Weight Loss
BMI Calculator for Weight Loss
BMI Calculator for Weight Loss
Body Mass Index & Ideal Weight
Free

Calculate your Body Mass Index (BMI) and ideal weight with this easy-to-use tool. Track your BMI to support weight loss efforts. Ideal for both men and women.

BMI calculationIdeal weight calculationWeight loss tracking support
💪 Health & Fitness
(2K)
ad-supported
17
Lose It! – Calorie Counter
Lose It! – Calorie Counter
Lose It! – Calorie Counter
Food Tracker for Weight Loss
Free

This app helps users achieve their weight loss goals by tracking calorie intake, nutrition, and exercise. It offers features like AI-powered meal logging, barcode scanning, and personalized diet plans to simplify the journey to a healthier lifestyle.

Calorie trackingWeight loss planningAI voice meal logging
💪 Health & Fitness
(773K)
free with in-app purchases
18
LifeCal - BMI Calculator
LifeCal - BMI Calculator
LifeCal - BMI Calculator
BMI, Calorie, TDEE and More!
Free
💪 Health & Fitness
(0)
19
Weight Loss by Blu
Weight Loss by Blu
Weight Loss by Blu
weight loss
Free
💪 Health & Fitness
(0)
20
BMI Calculator: Weight loss.
BMI Calculator: Weight loss.
BMI Calculator: Weight loss.
Lose Weight App For Men&Women
Free

Easily calculate your Body Mass Index (BMI) and track historical changes. This tool also estimates your daily calorie intake using the Harris-Benedict formula. Please note, this app does not provide medical advice.

BMI calculationCalorie intake estimationHistory tracking
💪 Health & Fitness
(8)
free with in-app purchases

FAQ about Weight Loss Calculator

What are the best weight loss calculator apps for iPhone?
BMI Calculator – Weight Loss tops our weight loss calculator apps ranking as of August 2026, with a 4.5-star average from 28K App Store ratings, and it's free to download.
Yes — 19 of the top weight loss calculator apps we rank are free to download, including BMI Calculator – Weight Loss and Happy Scale.
BMI Calculator – Weight Loss has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ weight loss calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app calculates and tracks your Body Mass Index (BMI) using accurate and user-friendly methods. It offers personalized health insights, ideal weight recommendations, and visual feedback on your BMI categories. You can monitor your weight loss or gain journey and understand potential health risks associated with your BMI.
Key features include instant BMI calculation with an animated visual gauge, personalized health insights, and ideal weight recommendations. It supports metric and imperial units, offers a choice between WHO and DGE classification systems, and includes age and gender-specific calculations. The app also works offline and has a clean, intuitive interface.

Related searches