Best Weight Calculator Workout Apps

244+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated September 2026

Finding the right weight calculator workout apps can be overwhelming with so many options. We've analyzed 244+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Weight Calculator Workout Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (28K)NoYesSep 2026
2Bar Is Loaded - Gym CalculatorBar Is Loaded - Gym CalculatorFree4.9★ (301)NoYesSep 2026
3BMI Calculator‰BMI Calculator‰Free4.9★ (24K)YesNoSep 2026
4BMI Calculator: Weight TrackerBMI Calculator: Weight TrackerFree4.9★ (374)YesYesSep 2026
5Weight Calculator BMI BMR RDIWeight Calculator BMI BMR RDIFree3.8★ (9)YesYesSep 2026
6Perfect Weight CalculatorPerfect Weight CalculatorFree2.2★ (6)NoNoMay 2026
7EZBarEZBarFree4.8★ (10)NoNoMay 2026
8BMI Calculator for Weight LossBMI Calculator for Weight LossFree4.7★ (2K)YesNoSep 2026

Top Picks for Weight Calculator Workout

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
Bar Is Loaded - Gym Calculator#2

Bar Is Loaded - Gym Calculator by Danny Li

It's leg day, not brain day.
Strong Contender
💪 Health & Fitness
4.9😊(301 ratings)
FreeIn-App Purchases
Bar Is Loaded - Gym Calculator screenshot 1
Bar Is Loaded - Gym Calculator screenshot 2
Bar Is Loaded - Gym Calculator screenshot 3
Bar Is Loaded - Gym Calculator screenshot 4
Bar Is Loaded - Gym Calculator screenshot 5
Bar Is Loaded - Gym Calculator screenshot 6

This app simplifies weightlifting calculations, instantly determining the correct plates to load onto a barbell. It offers custom settings for inventory and a reverse calculator, along with tools for meet preparation and performance scoring.

What We Love

  • 👍 Extremely user-friendly and intuitive interface
  • 🚀 Fast and accurate plate loading calculations
  • 💰 Completely free with no ads or subscriptions
  • 🧠 Eliminates mental math during workouts
  • 📊 Rich feature set including RPE, Wilks, and 1RM calculators
  • 🔄 Reverse calculation functionality for bar loading
  • 📱 Supports both kg and lb conversions seamlessly
  • 🎨 Clean and simple design
  • 👨‍💻 Responsive developer who takes feedback seriously
  • 📸 Ability to share loaded bar images on social media
  • ⚡ Lightweight and quick performance
  • 🏋️ Tailored specifically for powerlifters and weightlifters

Room to Improve

  • 🐛 Frequent crashes and infinite loading screens
  • 🐛 5kg calculation glitch in reverse section
  • 🐛 Inconsistent weight calculations with kg plates
  • ⚙️ Limited barbell weight customization options
  • ⚙️ Collar weight incorrectly set to 4kg instead of 5kg
  • ⚙️ Rounding errors with decimal plate weights
  • 📱 Compatibility issues with newer devices (iPhone 16 Pro)
  • ❌ No ladies bar weight option (35 lbs)
  • ❌ Missing 7.5kg plate option
BMI Calculator‰#3

BMI Calculator‰ by Tim O's Studios, LLC

Body Mass Index Calculator
Worth Considering
💪 Health & Fitness
4.9😐(24K ratings)
FreeAds
BMI Calculator‰ screenshot 1
BMI Calculator‰ screenshot 2

Easily calculate your Body Mass Index (BMI) with this straightforward application. It provides a quick way to understand your weight status based on your height and weight.

What We Love

  • 🚀 Quick and easy to use
  • 👍 Straightforward interface
  • ✅ Accurate BMI calculations
  • 💡 Supports both metric and imperial units

Room to Improve

  • 🐛 Inability to input decimal values for height and weight
  • 🔍 Lacks advanced features like body composition analysis
  • 💸 Aggressive advertising interrupting usage
  • 🔧 Compatibility issues with newer OS versions

More Weight Calculator Workout apps to explore

FAQ about Weight Calculator Workout

What are the best weight calculator workout apps for iPhone?
BMI Calculator – Weight Loss tops our weight calculator workout apps ranking as of September 2026, with a 4.5-star average from 28K App Store ratings, and it's free to download.
Yes — 20 of the top weight calculator workout apps we rank are free to download, including BMI Calculator – Weight Loss and Bar Is Loaded - Gym Calculator.
BMI Calculator – Weight Loss has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 244+ weight calculator workout apps on the iOS App Store as of September 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.