Best Weight Calculator Apps

248+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated September 2026

Looking for free weight calculator apps? 18 of our 248+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Weight Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (29K)NoYesOct 2026
2Barbell Plate CalculatorBarbell Plate CalculatorFree4.8★ (236)YesYesSep 2026
3Bar Is Loaded - Gym CalculatorBar Is Loaded - Gym CalculatorFree4.9★ (428)NoYesSep 2026
4BMI Calculator‰BMI Calculator‰Free4.9★ (24K)YesNoSep 2026
5Monitor Your WeightMonitor Your WeightFree4.8★ (23K)YesYesOct 2026
6Metal Weight Calculator ProMetal Weight Calculator ProFree4.7★ (20)NoYesSep 2026
7Pipe Weight CalculatorPipe Weight Calculator$2.99—NoNoMay 2026
8Happy ScaleHappy ScaleFree4.9★ (58K)NoYesOct 2026

Top Picks for Weight Calculator

BMI Calculator – Weight Loss#1

BMI Calculator – Weight Loss by Steffen Mayer

Calculate your ideal weight
Editor's Choice
💪 Health & Fitness
4.5😞(29K 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#3

Bar Is Loaded - Gym Calculator by Danny Li

It's leg day, not brain day.
Worth Considering
💪 Health & Fitness
4.9😊(428 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

More Weight Calculator apps to explore

FAQ about Weight Calculator

What are the best weight calculator apps for iPhone?
BMI Calculator – Weight Loss tops our weight calculator apps ranking as of September 2026, with a 4.5-star average from 29K App Store ratings, and it's free to download.
Yes — 18 of the top weight calculator apps we rank are free to download, including BMI Calculator – Weight Loss and Barbell Plate 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 248+ weight calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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