Best Weight Calculators Apps

240+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated May 2026

Out of 240+ weight calculators apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Weight Calculators

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
BMI Calculator‰#2

BMI Calculator‰ by Tim O's Studios, LLC

Body Mass Index Calculator
Strong Contender
💪 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
BMI Calculator for Weight Loss#3

BMI Calculator for Weight Loss by VisualHype GmbH

Body Mass Index & Ideal Weight
Worth Considering
💪 Health & Fitness
4.7😐(1.7K ratings)
FreeAds
BMI Calculator for Weight Loss screenshot 1
BMI Calculator for Weight Loss screenshot 2
BMI Calculator for Weight Loss screenshot 3

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.

What We Love

  • 👍 Easy to use
  • 📈 Helpful for tracking progress
  • 🚀 Quick calculations
  • 💯 Accurate BMI information

Room to Improve

  • 🐛 Inaccurate BMI categorization
  • 🚫 Metric-only measurements
  • 📢 Intrusive ads

More Weight Calculators apps to explore

4
Conversion Calculator Plus
Conversion Calculator Plus
Conversion Calculator Plus
Unit Converter
Free

This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.

Unit and currency conversionSupports 160+ currencies (real & crypto)Automatic currency exchange rate updates
📊 Productivity
(15K)
free with in-app purchases
5
BMI Calculator + Weight Loss
BMI Calculator + Weight Loss
BMI Calculator + Weight Loss
Lose weight. Improve your BMI.
Free

This app helps users achieve their weight and body goals through a comprehensive suite of tracking and analysis tools. It offers a BMI calculator, weight diary, and detailed body measurements to visualize progress and stay motivated on the journey to better health.

Professional BMI CalculatorSmart Weight TrackerBody Data Analytics
💪 Health & Fitness
(4.7K)
free with in-app purchases
6
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
7
Metal Weight Calculator Pro
Metal Weight Calculator Pro
Metal Weight Calculator Pro
Steel, Pipe & Sheet Weight
Free

Quickly estimate the weight of various metals and alloys for engineering, fabrication, and construction. Supports multiple shapes like sheets, pipes, bars, plates, and beams, with customizable units and density settings.

Calculate weight for sheets, pipes, bars, plates, and beamsSupports steel, aluminum, copper, brass, stainless steel, and alloysSwitch between metric and imperial units
📊 Productivity
(10)
free
8
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
9
BMI Calculator: Weight Tracker
BMI Calculator: Weight Tracker
BMI Calculator: Weight Tracker
BMI & Weight Loss Tracker
Free

Calculate your Body Mass Index (BMI) using age, gender, height, and weight. Track your health progress, find your ideal weight, and receive tips for weight control. Supports metric and imperial units and syncs with Apple Health.

Calculate BMI scientificallyFind ideal weightLog BMI history
💪 Health & Fitness
(328)
free with in-app purchases
10
Weight calculator for metals
Weight calculator for metals
Weight calculator for metals
Metal Weight calculator
Free

Easily calculate the mass, length, and price of various metal shapes. Supports custom metals and multiple units for length and weight. Offers both length and weight calculation modes for flexibility.

Calculate mass, length, and priceSupports custom metalsMultiple length and weight units
📊 Productivity
(252)
free with in-app purchases
11
BMI-Calculator: Weight Tracker
BMI-Calculator: Weight Tracker
BMI-Calculator: Weight Tracker
Weight Loss, BMI Tracker, IMC
Free

Easily calculate your Body Mass Index (BMI) to understand your weight classification and ideal weight. Track your weight progress towards a personal goal, whether for weight loss or gain. This tool provides a quick BMI assessment and classification based on WHO standards.

BMI calculationWeight classificationIdeal weight determination
💪 Health & Fitness
(1.5K)
free with in-app purchases
12
Food Score Calculator for Weight-Loss Nutrition
Food Score Calculator for Weight-Loss Nutrition
Food Score Calculator for Weight-Loss Nutrition
by Cloforce LLC
Free

Easily calculate a food score to simplify your weight loss journey. Break down complex nutritional information into a single, easy-to-understand number. Access a vast database of foods and barcodes, or input your own data for instant scoring.

Intuitive food score calculationMassive 5 million food database2 million barcode database search
💪 Health & Fitness
(827)
free
13
Steel Weight Calculator App
Steel Weight Calculator App
Steel Weight Calculator App
Swift Steel Weight Calculation
Free

Quickly calculate the weight of various steel types for construction projects. Supports multiple units and provides instant, accurate results through a user-friendly interface. Ideal for professionals and DIY enthusiasts alike.

Supports I-beams, H-beams, angles, channels, platesCustomizable units (lb, kg)Instant and accurate results
🔧 Utilities
(43)
free with in-app purchases
14
WeightWatchers Program
WeightWatchers Program
WeightWatchers Program
Weight Loss and Better Health
Free

This app offers a science-backed weight loss tracker and personalized diet plans. It includes specialized support for weight-loss medications, AI-powered progress tracking beyond the scale, and flexible tools for various weight management goals. Connect with coaches and a supportive community for lasting results.

Personalized diet plansWeight-loss medication supportAI body scanner
💪 Health & Fitness
(2.4M)
free with in-app purchases
15
Weight Monitor, BMI Calculator
Weight Monitor, BMI Calculator
Weight Monitor, BMI Calculator
Weight Loss Tracker & Ozempic
Free

This app helps you track your weight loss or gain journey with motivational tools and progress monitoring. Set goals, join challenges, and log body measurements to stay on track. Enjoy a secure, private experience with customizable features.

Weight tracking and BMI calculationBody measurement logging28-day healthy habit challenges
💪 Health & Fitness
(664)
free with in-app purchases
16
Ideal BMI: Weight Loss Tracker
Ideal BMI: Weight Loss Tracker
Ideal BMI: Weight Loss Tracker
Healthy Weight Scale Monitor
Free

Calculate your Body Mass Index (BMI) using weight, height, age, and sex. Understand your weight status according to WHO classifications and find your ideal weight. Track your BMI history and share your progress.

Accurate BMI calculationWHO-based insightsIdeal weight determination
💪 Health & Fitness
(108)
free with in-app purchases
17
Weight loss tracker - BMI
Weight loss tracker - BMI
Weight loss tracker - BMI
Daily weight loss tracker
Free

Monitor your weight and calculate your BMI with this user-friendly app. Log daily measurements, add notes, pictures, and track your progress with charts. Set goals and stay motivated on your health journey.

Daily weight loggingBMI calculationProgress charts
💪 Health & Fitness
(990)
ad-supported
18
BMI Calculator - BMR Manager
BMI Calculator - BMR Manager
BMI Calculator - BMR Manager
Fitness Tracker & Weight Loss
Free

Calculate your Body Mass Index (BMI) and Basal Metabolic Rate (BMR) with this fitness tracker. It provides accurate measurements based on your weight, height, and age, helping you understand body fat and estimate daily calorie needs for weight management. Supports imperial and metric units and tracks your history offline.

BMI calculationBMR calculationHistory tracking
💪 Health & Fitness
(290)
free with in-app purchases
19
Calorie Counter by fatsecret
Calorie Counter by fatsecret
Calorie Counter by fatsecret
Diet & Weight Loss Tracker
Free

Track your food, exercise, and weight with a comprehensive database and supportive community. Features include barcode scanning, image recognition, and integration with health apps. Premium options offer personalized meal plans and advanced tracking.

Food diary with extensive databaseBarcode scanner and image recognitionExercise tracking and calorie burn log
💪 Health & Fitness
(14K)
freemium
20
Weight Loss Surgery Calculator
Weight Loss Surgery Calculator
Weight Loss Surgery Calculator
Bariatric Weight Estimations
Free

Estimate potential weight loss from various bariatric surgeries. Calculate BMI, target weights, and percentage of excess body weight lost. Useful for medical professionals and individuals considering surgical weight loss.

Calculate BMIEstimate potential weight lossDetermine potential final weight
🏥 Medical
(9)
free

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