Crystalline Fitness Tools

Know Your Body.
Train With Purpose.

Understand your body, set realistic goals and make smarter fitness decisions with our free fitness assessment and practical calculators.

Free to useTakes 2–3 minutesBeginner friendly
Personal Fitness Assessment

Start With Your Fitness Profile

Answer a few simple questions about your goals, training, lifestyle and experience. We'll use your answers to understand where you are starting from.

Question 1 of 10

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Question 1

What is your primary fitness goal?

Select the option that best describes you.

Your next question will appear automatically.

Fitness Calculators

Simple Tools Better Decisions

Use these tools to understand important fitness metrics and create a more informed approach to your training and nutrition.

BMI Calculator

Calculate your Body Mass Index using your height and weight.

Calorie & TDEE

Estimate your daily calorie requirements based on your activity level and goals.

Protein Calculator

Estimate a practical daily protein target based on your body weight and fitness goal.

Macro Calculator

Get an estimated split of protein, carbohydrates, and fats for your daily nutrition.

Body Fat Calculator

Estimate your body-fat percentage using standard body measurements.

1RM Calculator

Estimate your one-repetition maximum from your current lifting performance.

How It Works

Your Fitness Journey Starts Here

Start with your assessment, understand your current position and then use the tools to make better training decisions.

01

Take Assessment

Tell us about your goals, training experience, lifestyle and preferences.

02

Understand Your Numbers

Use BMI, calorie, protein, macro and strength calculators to understand your starting point.

03

Train With Purpose

Turn your information into smarter training and nutrition decisions.

Start Today

Ready to understand your fitness better?

Take the free assessment and get a clearer picture of your current fitness goals and preferences.

Take Fitness Assessment