IRON EMPIRE FITNESS
Build the Body. Rule Your Empire.
Free fitness calculators, science-based workout plans and straight-talking nutrition guides — everything you need to build strength, burn fat and take control of your body.
IRON EMPIRE FITNESS
Build the Body. Rule Your Empire.
Free fitness calculators, science-based workout plans and straight-talking nutrition guides — everything you need to build strength, burn fat and take control of your body.
9 Free Calculators
Calories, macros, BMI and more — free, with no sign-up.
18 Exercises
Form guides for every major movement.
3 Training Hubs
Training hubs for building muscle, losing fat and staying fit.
EXPLORE
Featured
Workout Plans
Structured plans that tell you exactly what to train.
Your Personal Plan
Your calories, macros and weekly training, built around your stats and goal.
Track With Tools
Free calculators for calories, macros, BMI and more — no sign-up.
FREE CALCULATORS
Fitness Calculators
BMI Calculator
Check your body mass index from your height and weight.
Calorie Calculator
Find your daily calorie target for your goal.
Macro Calculator
Split your calories into protein, carbs and fat.
Protein Calculator
Work out your daily protein target.
Body Fat Calculator
Estimate your body fat percentage.
One-Rep Max Calculator
Estimate your one-rep max from any lift.
FROM THE BLOG
Latest Articles
Bulking vs Cutting: Which One Should You Do First?
How to choose between building muscle and losing fat first.
7 Fat Loss Mistakes That Keep You Stuck
Seven common fat loss mistakes — and how to fix them.
The Complete Home Workout Without Equipment
A full home workout that builds real muscle with no equipment.
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OUR STANDARDS
Editorial Standards
Every article is original, research-based writing with references to sources such as the WHO, NHS and CDC. Our calculators use standard published formulas. No invented credentials — just straight answers.
Your Free Personal Fitness Calculator
Tell us your stats and your goal. We will hand you your daily calories, macros and a weekly training split in seconds.
Iron Empire Fitness Tools
Build Your Personal Fitness Plan
Enter your details and pick the body you are training for. You will get your daily calories, macros, BMI reading and a weekly workout split matched to your goal. Free, instant, no sign-up.
Your Daily Targets
Your BMI
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Your Weekly Split
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Eating Guidance
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These numbers are estimates from standard formulas (Mifflin-St Jeor) and are general educational information only — not medical advice. Your real needs vary with body composition, health and training history. Talk to a doctor or a registered dietitian before starting a new diet or training program, especially if you have a health condition. BMI is a rough screening number, not a diagnosis: muscular people often score high while carrying little body fat.
FREE TOOLS
Popular Fitness Tools
Workout of the Day
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Warm up for 5 minutes before you start, rest 60–90 seconds between sets, and pick a weight that makes the last two reps hard but clean. A new workout drops here every day — come back tomorrow.
Why Iron Empire
100% Free Tools
Calories, macros, BMI and more. No sign-up walls, no paywalls — just answers.
Built for Real People
Beginner or advanced, home or gym — plans that fit your life, not the other way round.
Science-Based Plans
Every calculator and plan is built on standard, proven formulas — no bro-science, no guesswork.
Pick Your Mission
Build Muscle
Surplus calories, smart macros and a push/pull/legs split that adds size week after week.
Start BuildingARTICLES & GUIDES
Latest Guides
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Your Empire Won't Build Itself.
Every strong body started with a single decision. Make yours today — it takes 30 seconds.