Best 12 Fitness Calculators Apps

228+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our 12 fitness calculators list covers 228+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top 12 Fitness Calculators Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
112 Fitness Calculators12 Fitness CalculatorsFree was $3.995.0★ (3)NoNoMay 2026
2Healthify: AI Calorie TrackerHealthify: AI Calorie TrackerFree4.6★ (6K)YesYesJul 2026
3AI Calorie Counter - AppedietAI Calorie Counter - AppedietFree4.8★ (46K)NoYesJul 2026
4Air & Space Fitness CalculatorAir & Space Fitness Calculator$0.994.6★ (116)NoNoJul 2026
5Army Fitness CalculatorArmy Fitness CalculatorFree4.7★ (947)YesYesJul 2026
6Navy SEAL FitnessNavy SEAL Fitness$1.994.9★ (214)NoNoJul 2026
7Planfit AI Gym Workout PlannerPlanfit AI Gym Workout PlannerFree4.8★ (7.4K)YesYesJul 2026
8FITTR: Health & Fitness AppFITTR: Health & Fitness AppFree4.6★ (2.4K)YesYesJul 2026

Top Picks for 12 Fitness Calculators

12 Fitness Calculators#1

12 Fitness Calculators by Edward A. Greenwood, Inc.

Fitness & exercise calculators
Editor's Choice
💪 Health & Fitness
5.0(3 ratings)
Free
12 Fitness Calculators screenshot 1
12 Fitness Calculators screenshot 2
12 Fitness Calculators screenshot 3
12 Fitness Calculators screenshot 4
12 Fitness Calculators screenshot 5
12 Fitness Calculators screenshot 6

This app offers a suite of 13 popular fitness, exercise, and weight loss calculators using scientifically accurate formulas. It provides detailed instructions and interprets results, supporting both metric and English units. The app prioritizes user privacy by not tracking or collecting data and is ad-free.

Healthify: AI Calorie Tracker#2

Healthify: AI Calorie Tracker by HealthifyMe Private Limited

Weight loss, diet, fitness app
Strong Contender
💪 Health & Fitness
4.6😞(6K ratings)
FreeAdsIn-App Purchases
Healthify: AI Calorie Tracker screenshot 1
Healthify: AI Calorie Tracker screenshot 2
Healthify: AI Calorie Tracker screenshot 3
Healthify: AI Calorie Tracker screenshot 4
Healthify: AI Calorie Tracker screenshot 5
Healthify: AI Calorie Tracker screenshot 6

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.

What We Love

  • 🚀 Great app that tracks Indian food
  • 👍 Simple but powerful features
  • 💡 Love AI-powered features
  • 👍 Easy to use and track meals

Room to Improve

  • 🐛 Inaccurate calorie counting
  • 🐛 Storage issues with photo tracking
  • 🔒 Forced to pay for premium features
AI Calorie Counter - Appediet#3

AI Calorie Counter - Appediet by Appediet Information PTE. LTD

Food, Macro & Fitness Tracker
Worth Considering
💪 Health & Fitness
4.8😊(46K ratings)
FreeIn-App Purchases
AI Calorie Counter - Appediet screenshot 1
AI Calorie Counter - Appediet screenshot 2
AI Calorie Counter - Appediet screenshot 3
AI Calorie Counter - Appediet screenshot 4
AI Calorie Counter - Appediet screenshot 5
AI Calorie Counter - Appediet screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 👍 Helpful AI assistant
  • 💡 Free barcode scanner
  • 🚀 Intuitive interface

Room to Improve

  • 🐛 Inaccurate food database
  • 🐛 AI analysis issues
  • 💰 Expensive subscription

More 12 Fitness Calculators apps to explore

4
Air & Space Fitness Calculator
Air & Space Fitness Calculator
Air & Space Fitness Calculator
Fitness Assessment Calculator
$0.99

Calculate your Air Force or Space Force fitness assessment score with up-to-date charts and component options. This tool helps determine exemptions, adjust for altitude, and find the best combination of tests to maximize your score. It also provides access to current regulations for reference.

Calculate fitness assessment scoresDetermine component exemptionsAdjust for altitude
💪 Health & Fitness
(116)
free
5
Army Fitness Calculator
Army Fitness Calculator
Army Fitness Calculator
ACFT, APFT, and Body Comp
Free

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.

ACFT and APFT score calculationBody fat and Ht/Wt calculationPromotion points calculation
💪 Health & Fitness
(947)
free with in-app purchases
6
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
7
Planfit AI Gym Workout Planner
Planfit AI Gym Workout Planner
Planfit AI Gym Workout Planner
Workout Tracker Fitness Plans
Free

This app creates personalized workout plans using AI to help you exercise smarter and achieve your fitness goals. It offers guidance on exercises, tracks your progress, and suggests alternatives when equipment is unavailable. Optimize your training whether you're at home or in the gym.

Personalized AI workout plannerOptimized sets and repsMachine/equipment guide
💪 Health & Fitness
(7.4K)
freemium
8
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
9
Trifecta: Diet & Weight Loss
Trifecta: Diet & Weight Loss
Trifecta: Diet & Weight Loss
Calorie & Macro Tracker
Free

This app helps you achieve your health and fitness goals with personalized nutrition tracking, exercise guidance, and healthy recipes. It offers tools to calculate macros, log meals, scan barcodes, track water intake, and follow workout videos. Create a step-by-step program for sustainable habit building.

Macro calculator for personalized nutritionFood and nutrition loggingBarcode scanner for packaged foods
💪 Health & Fitness
(1.5K)
free with in-app purchases
10
EGYM Fitness
EGYM Fitness
EGYM Fitness
Fitness App by EGYM
Free

Easily monitor your workouts, track progress, and achieve your fitness goals with engaging insights and motivation. Offers personalized training plans, fun challenges, and class booking.

Workout trackingPersonalized training plansActivity level milestones
💪 Health & Fitness
(151)
free
11
MyFitnessPal: Calorie Counter
MyFitnessPal: Calorie Counter
MyFitnessPal: Calorie Counter
Food, Fitness & Weight Tracker
Free

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.

AI Food TrackerCalorie and Macro TrackingWater Intake Monitoring
💪 Health & Fitness
(2.3M)
free with in-app purchases
12
Fitness AI Gym Workout Planner
Fitness AI Gym Workout Planner
Fitness AI Gym Workout Planner
Personal Trainer: Muscle Coach
Free

This app uses an advanced algorithm to create personalized workout plans for home or gym. It optimizes sets, reps, and weights to help you build muscle, get toned, or lose weight efficiently. Track your progress and achieve your fitness goals with data-driven routines.

Personalized AI workout plansOptimized sets, reps, and weightsHome and gym workout options
💪 Health & Fitness
(56K)
free with in-app purchases
13
MyBody: Health & Weight Loss
MyBody: Health & Weight Loss
MyBody: Health & Weight Loss
Meal Plan & Calorie Counter
Free

This app offers personalized meal plans and calorie tracking to support your health and weight loss goals. It includes healthy recipes, at-home workouts, and progress monitoring to guide you towards a healthier lifestyle.

Personalized meal plannerCalorie and macro trackingShopping list generator
💪 Health & Fitness
(1.1K)
subscription
14
Keto Diet App - Carb Tracker
Keto Diet App - Carb Tracker
Keto Diet App - Carb Tracker
Weight Loss, Meal Plan, Recipe
Free

This app acts as your personal keto coach, offering a powerful macro tracker with hundreds of recipes and diet tips. Easily log food using voice recognition or a barcode scanner, and receive a custom weight loss plan to reach your goals faster.

Automatic macro calculatorCarb and calorie counterPersonalized weight loss plan
💪 Health & Fitness
(81K)
free with in-app purchases
15
uFit AI: Gym & Fitness Planner
uFit AI: Gym & Fitness Planner
uFit AI: Gym & Fitness Planner
AI Personal Trainer & Workouts
Free

This app creates personalized workout plans, tracks nutrition with AI-powered meal scanning, and monitors physique changes through AI body scans. It adapts to your fitness level, goals, and available equipment, providing detailed analytics to help you achieve lasting fitness results.

Personalized workout plansAI nutrition scannerAI body composition analysis
💪 Health & Fitness
(2.5K)
subscription
16
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
(767K)
free with in-app purchases
17
Running Walking Tracker Goals
Running Walking Tracker Goals
Running Walking Tracker Goals
Run, Walk & Jog Mile Distance
Free

Track your running, walking, and biking activities to achieve fitness goals like weight loss or calorie counting. Monitor distance, speed, elevation, and calories burned with voice control and Apple Watch integration. Offers various activity types and customizable goals.

Track distance, time, speed, elevation, caloriesVoice control with SiriApple Watch integration
💪 Health & Fitness
(104K)
freemium
18
Map My Walk: Walking Tracker
Map My Walk: Walking Tracker
Map My Walk: Walking Tracker
GPS Step Counter, Weight Loss
Free

This app helps you track your walks, steps, pace, calories, and distance. It offers GPS mapping, progress insights, and community challenges to keep you motivated. It also provides personalized coaching tips for Garmin users to improve your walking technique.

GPS tracking and route mappingStep, pace, calorie, and distance trackingProgress insights and goal setting
🌟 Lifestyle
(474K)
free with in-app purchases
19
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
(95K)
free with in-app purchases
20
Calorie Deficit Calculator
Calorie Deficit Calculator
Calorie Deficit Calculator
Oatsy Macro Tracker Diet Coach
Free

This app helps you achieve your health and nutrition goals by tracking your food intake, water consumption, and exercise. It offers a comprehensive nutrition database, custom diet plans, and AI-powered food scanning to make logging easier.

Advanced food diary with large nutrition databaseCalorie and macro/micronutrient trackingCustomizable diet plans (Keto, Intermittent Fasting, etc.)
💪 Health & Fitness
(3.7K)
free with in-app purchases

FAQ about 12 Fitness Calculators

What are the best 12 fitness calculators apps for iPhone?
12 Fitness Calculators tops our 12 fitness calculators apps ranking as of June 2026, with a 5.0-star average from 3 App Store ratings, and it's free to download.
Yes — 18 of the top 12 fitness calculators apps we rank are free to download, including 12 Fitness Calculators and Healthify: AI Calorie Tracker.
12 Fitness Calculators has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 228+ 12 fitness calculators apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
12 Fitness Calculators offers 13 tools including BMI, BMR, body fat percentage (two methods), calories burned, daily calorie needs, distance-time-pace-speed, metric/English conversion, 1 rep max, resting heart rate timer, and splits for various activities. It uses scientifically accurate formulas from reputable organizations.
No, 12 Fitness Calculators does not track you, collect any data, or include advertising. The app is designed with user privacy as a priority.