Best Weight Calculator Apps

249+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated July 2026

Looking for free weight calculator apps? 18 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Weight Calculator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (27K)NoYesAug 2026
2Barbell Plate CalculatorBarbell Plate CalculatorFree was $4.994.8★ (236)YesYesJul 2026
3Bar Is Loaded - Gym CalculatorBar Is Loaded - Gym CalculatorFree4.8★ (251)NoYesJul 2026
4BMI Calculator‰BMI Calculator‰Free4.9★ (24K)YesNoAug 2026
5BMI Calculator for Weight LossBMI Calculator for Weight LossFree4.7★ (2K)YesNoAug 2026
6Monitor Your WeightMonitor Your WeightFree4.8★ (23K)YesYesAug 2026
7Happy ScaleHappy ScaleFree4.9★ (58K)NoYesAug 2026
8Steel weight calculatorSteel weight calculatorFreeNoYesMay 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😞(27K 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
Barbell Plate Calculator#2

Barbell Plate Calculator by XD Software Solutions LLC

Plate math made simple
Strong Contender
💪 Health & Fitness
4.8(236 ratings)
FreeAdsIn-App Purchases
Barbell Plate Calculator screenshot 1
Barbell Plate Calculator screenshot 2
Barbell Plate Calculator screenshot 3
Barbell Plate Calculator screenshot 4
Barbell Plate Calculator screenshot 5
Barbell Plate Calculator screenshot 6

Easily calculate the barbell plates needed to reach a target weight or determine the total weight on a loaded bar. This app simplifies weightlifting math, allowing you to focus on your workout. It offers customizable options and a timer for tracking exercises.

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
4.8😊(251 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

Room to Improve

  • 🐛 Frequent crashes and infinite loading screens
  • 🐛 5kg calculation glitch in reverse section
  • 🐛 Inconsistent weight calculations with kg plates

More Weight Calculator apps to explore

4
BMI Calculator‰
BMI Calculator‰
BMI Calculator‰
Body Mass Index Calculator
Free

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.

BMI calculationInput heightInput weight
💪 Health & Fitness
(24K)
ad-supported
5
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
6
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
7
Happy Scale
Happy Scale
Happy Scale
Weight Loss Tracker
Free

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.

See true progress with mathematical analysisSmooth out weigh-in fluctuationsPredict future weight
💪 Health & Fitness
(58K)
subscription
8
Steel weight calculator
Steel weight calculator
Steel weight calculator
by 昆 张
Free

Calculate the weight and price of various steel types using this professional tool. It offers a comprehensive database of steel models and parameters, saving your calculation history for easy access. Ideal for construction and fabrication professionals.

Automatic weight and price calculationSupports construction, form, volume, and tube steelComprehensive database of steel models
📊 Productivity
(0)
free with in-app purchases
9
Paper Weight Calculator
Paper Weight Calculator
Paper Weight Calculator
by Manfred Breede
$0.99
💼 Business
(0)
10
Weight Calculator For Metal
Weight Calculator For Metal
Weight Calculator For Metal
Presented by nodakougyo
Free

Calculate the weight of individual metal materials and the total weight of multiple materials. This tool is useful for design and production considerations.

Calculate individual material weightCalculate total weight of multiple materialsUseful for design
🔧 Utilities
(0)
free
11
Truck Weight Calculator
Truck Weight Calculator
Truck Weight Calculator
Smart scale & Axle estimate
Free

This app helps truck drivers stay legal and avoid fines by estimating axle weights and guiding tandem axle adjustments. It provides tools to offset scale readings, optimize fuel, and understand state weight regulations, ensuring safe and confident operation on the road.

Estimate axle weightsSlide tandem axlesOffset scale readings
🔧 Utilities
(1)
free with in-app purchases
12
Scope Metal Weight Calculator
Scope Metal Weight Calculator
Scope Metal Weight Calculator
מחשבון משקל למתכות ופלסטיק
Free
📊 Productivity
(0)
13
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
(769K)
free with in-app purchases
14
Fitness BMI Calculator
Fitness BMI Calculator
Fitness BMI Calculator
Check Body Mass Index Fast
Free
🔧 Utilities
(0)
15
Phone Scale - Weight Measure
Phone Scale - Weight Measure
Phone Scale - Weight Measure
Estimate Grams And More
Free

This app uses your phone's camera and AI to estimate the weight of objects. Simply take a picture to get instant weight readings in various units, perfect for cooking or mailing. It features smart object recognition and saves your measurement history.

AI-powered weight estimationMulti-unit support (grams, pounds)Smart object recognition
🔧 Utilities
(1)
free with in-app purchases
16
Metal Weight Calculator - MWC
Metal Weight Calculator - MWC
Metal Weight Calculator - MWC
by Brijesh Kothari
Free

Calculate the weight of various metal and steel products with ease. Supports multiple units and metal grades, offering a streamlined solution for industry professionals.

Intuitive interfaceImperial and metric unit supportSupports various metal grades
📊 Productivity
(8)
free with in-app purchases
17
BMI Calculator & Weight Log
BMI Calculator & Weight Log
BMI Calculator & Weight Log
Track BMI, weight & health
Free
💪 Health & Fitness
(0)
18
Fabrication Weight Calculator
Fabrication Weight Calculator
Fabrication Weight Calculator
by Imran Pinjara
$4.99

Calculate the fabrication weight and cost of various metal shapes used in process equipment, pressure vessels, and structural fabrication. Supports a wide range of materials and engineering components.

Weight and cost calculation for fabrication componentsSupports plates, pipes, circles, cones, dishes, angles, channels, beams, and moreCalculates for various materials including steel, aluminum, and copper
🔧 Utilities
(1)
paid
19
Metal Weight Calculator App
Metal Weight Calculator App
Metal Weight Calculator App
Quick Metal Weight Calculator
Free

This tool simplifies metal weight calculations for professionals and hobbyists. It supports various units, metal types, and shapes, offering precise results through an intuitive interface. Customize inputs for single pieces or bulk projects.

Multiple unit options (cm, mm, ft, in, m, yd)Extensive metal density databaseLibrary of diverse metal shapes
🔧 Utilities
(109)
free with in-app purchases
20
Nonwoven Bag Weight Calculator
Nonwoven Bag Weight Calculator
Nonwoven Bag Weight Calculator
Bag Weight Calculator
Free
💼 Business
(0)

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 July 2026, with a 4.5-star average from 27K 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 July 2026.
We track 249+ weight calculator apps on the iOS App Store as of July 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.

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