Best Fitness Calculator Apps

232+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our fitness calculator list covers 232+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Fitness Calculator

Army Fitness Calculator#1

Army Fitness Calculator by Benjamin Hultquist

ACFT, APFT, and Body Comp
Editor's Choice
💪 Health & Fitness
4.7😞(947 ratings)
FreeAdsIn-App Purchases
Army Fitness Calculator screenshot 1
Army Fitness Calculator screenshot 2
Army Fitness Calculator screenshot 3
Army Fitness Calculator screenshot 4
Army Fitness Calculator screenshot 5
Army Fitness Calculator screenshot 6

Calculate Army Fitness Test (ACFT, APFT) scores, body composition, and promotion points. Get target raw values for minimum, maximum, or 80% scores based on gender and age. Includes event instructions and links to official resources.

What We Love

  • 🚀 Up to Date
  • 👍 One of the best apps of its type
  • 👍 Just what I was looking for

Room to Improve

  • 🔒 Locks your old scores behind new Premium version
  • 🐛 Heats up quick
  • 🐛 Freezes Up iPhone
MyFitnessPal: Calorie Counter#2

MyFitnessPal: Calorie Counter by MyFitnessPal, Inc.

Food, Fitness & Weight Tracker
Strong Contender
💪 Health & Fitness
4.7😐(2.3M ratings)
FreeAdsIn-App Purchases
#1in Health & Fitness
MyFitnessPal: Calorie Counter screenshot 1
MyFitnessPal: Calorie Counter screenshot 2
MyFitnessPal: Calorie Counter screenshot 3
MyFitnessPal: Calorie Counter screenshot 4
MyFitnessPal: Calorie Counter screenshot 5
MyFitnessPal: Calorie Counter screenshot 6

This AI-powered app helps you achieve your health and fitness goals by tracking calories, macros, and water intake. It offers a comprehensive food database, workout logging, personalized goals, and meal planning to monitor your progress.

What We Love

  • 💪 Effective for weight loss/healthy eating
  • 🔍 Extensive food database
  • 📊 Helpful tracking and progress features
  • 🤝 Social features and community support

Room to Improve

  • 🐛 Buggy and glitchy app performance
  • 💰 Aggressive push for premium subscription
  • 📋 Inaccurate food data and calculations
BMI Calculator – Weight Loss#3

BMI Calculator – Weight Loss by Steffen Mayer

Calculate your ideal weight
Worth Considering
💪 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

More Fitness Calculator apps to explore

4
BMI, BMR & Body Fat Calculator
BMI, BMR & Body Fat Calculator
BMI, BMR & Body Fat Calculator
BodyFat Percentage, TDEE, EER
Free

Calculate key body metrics like BMI, BMR, and body fat percentage. Track progress with charts, access diet plans, recipes, and fitness blogs for a holistic approach to health.

BMI, BMR, and Body Fat calculationIdeal Body Weight and Daily Water Intake trackingDiet plans and recipes
💪 Health & Fitness
(333)
free with in-app purchases
5
Fitness Coach - Workout Plan
Fitness Coach - Workout Plan
Fitness Coach - Workout Plan
Lose Weight, Build Abs & Butt
Free

Personalized workout plans adapt to your fitness goals and level, whether you train at home, the gym, or outdoors. Access numerous training sessions and hundreds of exercises to target all muscle groups. Track your progress over time and stay motivated with 30-minute sessions.

Personalized workout programsGoal-based training adaptationDozens of training sessions
💪 Health & Fitness
(73K)
subscription
6
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
7
BMI Calculator - Fitness Track
BMI Calculator - Fitness Track
BMI Calculator - Fitness Track
Body Weight & Health Check
Free
💪 Health & Fitness
(0)
8
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
(763K)
free with in-app purchases
9
Cronometer: Calorie Counter
Cronometer: Calorie Counter
Cronometer: Calorie Counter
Nutrition, macro, diet tracker
Free

Track your diet and exercise with an extensive food database and detailed nutrient breakdowns. Monitor progress towards health goals, integrate with fitness devices, and gain insights into sleep patterns. Offers premium features for enhanced tracking and an ad-free experience.

Extensive verified food databaseDetailed nutrient and calorie trackingFitness goal setting and progress monitoring
💪 Health & Fitness
(93K)
free with in-app purchases
10
Macro Calculator By Fittur
Macro Calculator By Fittur
Macro Calculator By Fittur
Calculate Macros Accurately
Free

This app calculates personalized macronutrient targets for fat loss, muscle gain, or weight maintenance. It uses body fat percentage for greater accuracy than traditional BMI-based calculators. Achieve your fitness goals with precise nutrition guidance.

Body fat-based macro calculationPersonalized nutrition targetsSupports fat loss, muscle gain, weight maintenance
💪 Health & Fitness
(4.1K)
free
11
Yoga-Go: Tai Chi & Pilates
Yoga-Go: Tai Chi & Pilates
Yoga-Go: Tai Chi & Pilates
Wall Pilates for Beginners
Free

Engage in low-intensity yoga, Tai Chi, and Pilates routines designed for home use. Improve flexibility, strength, and reduce stress with guided workouts ranging from 7 to 30 minutes daily. Explore over 2000 exercises, including somatic yoga and chair yoga, to enhance your overall well-being.

Low-intensity home workoutsYoga, Tai Chi, Pilates, Somatic YogaChair yoga for mobility
💪 Health & Fitness
(89K)
free with in-app purchases
12
JEFIT Workout Plan Gym Tracker
JEFIT Workout Plan Gym Tracker
JEFIT Workout Plan Gym Tracker
Strength Log Gym Planner
Free

This app helps you achieve fitness goals with personalized workout plans, detailed exercise instructions, and progress tracking. Log your weight, reps, and sets, and gain insights into your training effectiveness. It supports strength tracking and syncs with Apple Health and smartwatches.

Personalized daily workout plans1,400+ exercises with HD videoWorkout logging and progress tracking
💪 Health & Fitness
(47K)
free with in-app purchases
13
Healthify: AI Calorie Tracker
Healthify: AI Calorie Tracker
Healthify: AI Calorie Tracker
Weight loss, diet, fitness app
Free

This app simplifies your health journey with AI-powered tools for weight loss, nutrition, and fitness. Track calories by photo or voice, log meals, and receive personalized AI insights and coaching. Monitor water intake, sleep, weight, and workouts for data-driven decisions.

AI calorie tracking with photosVoice-based meal loggingPersonalized AI insights and actionables
💪 Health & Fitness
(6K)
free with in-app purchases
14
FITTR: Health & Fitness App
FITTR: Health & Fitness App
FITTR: Health & Fitness App
Health Tests, Workouts & Diets
Free

This app helps you proactively manage your health through a science-backed ecosystem. It integrates wearables, smart tools, and lab tests to help you understand your body, diagnose potential issues, and implement personalized lifestyle interventions for long-term well-being.

Health and lifestyle tracking via wearablesCalorie, protein, and body fat calculatorsSmart scale with 50+ health metrics
💪 Health & Fitness
(2.4K)
free with in-app purchases
15
Calorie Counter - MyNetDiary
Calorie Counter - MyNetDiary
Calorie Counter - MyNetDiary
Food Nutrition Macro Tracker
Free

Track your food intake and nutrition with a comprehensive calorie counter. Log meals quickly using a barcode scanner, photo analysis, or search. Monitor macros, vitamins, minerals, and more with detailed insights and progress charts.

Barcode scannerMeal Scan (photo logging)Macro and protein tracking
💪 Health & Fitness
(155K)
freemium
16
ArmyFit
ArmyFit
ArmyFit
Ace the AFT | Become a PT Stud
Free

This app helps soldiers prepare for and track their Army Fitness Tests (AFT, APFT, ACFT). It offers score calculators, progress tracking, video tutorials, and an AI fitness assistant to help users achieve their goals.

AFT/ACFT score calculatorsProgress tracking dashboardVideo tutorials for events
💪 Health & Fitness
(4.9K)
free with in-app purchases
17
Navy SEAL Fitness
Navy SEAL Fitness
Navy SEAL Fitness
Calcs and Helpful References
$1.99

This app provides a comprehensive guide to achieving elite physical fitness inspired by Navy SEAL training. It includes over 220 exercises, instructional videos, and numerous calculators and reference materials covering exercise physiology, training principles, and nutrition.

Over 220 exercises90+ instructional videos20+ fitness calculators
💪 Health & Fitness
(214)
paid
18
AI Calorie Counter - Appediet
AI Calorie Counter - Appediet
AI Calorie Counter - Appediet
Food, Macro & Fitness Tracker
Free

Effortlessly track your food intake with AI-powered photo and barcode scanning. Get detailed nutritional breakdowns, personalized diet plans, and expert health advice to achieve your weight loss and wellness goals.

AI food photo scanningBarcode scanner for food entryDetailed nutritional breakdown
💪 Health & Fitness
(45K)
subscription
19
APFT App
APFT App
APFT App
APFT and Body Fat Calculator
Free

This application helps users calculate their Army Physical Fitness Test (APFT) scores and body fat percentages. It allows for saving, editing, and digitally signing these records, with options to preview them as official DA forms and email them as PDFs. Data can be synced and backed up using a Google account.

Calculate APFT scoreCalculate body fat percentageSave and edit records
🔧 Utilities
(70)
free
20
Health Checkup Fitness Test
Health Checkup Fitness Test
Health Checkup Fitness Test
Fitness test - Fitness tracker
Free

This app helps you monitor your health with various calculators and tests. It offers tools for tracking blood sugar, blood pressure, BMI, and more, aiding in regular health checkups for adults and children. Analyze your data and gain insights into your well-being.

Blood sugar calculatorBlood pressure calculatorBMI and body fat calculator
💪 Health & Fitness
(5)
free

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