BMR & TDEE Calculator for CrossFit

This tool calculates your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) based on your personal data.

Input your gender, age, weight, height, and activity level to calculate your BMR and TDEE. Use these values to guide your nutrition for optimal performance.

Age

Sex

Weight (lbs)

Height (inches)

Activity Level

Enter your details above

Understanding your BMR and TDEE is crucial for CrossFit athletes to tailor their nutrition to support intense training, recovery, and performance goals.

Examples for CrossFit

Female CrossFit Athlete

BMR: 1,436 calories, TDEE: 2,200 calories

This athlete requires 2,200 calories daily to maintain energy for intense training and recovery.

Male Competitive CrossFitter

BMR: 1,830 calories, TDEE: 3,000 calories

To support rigorous training and competition prep, this athlete needs about 3,000 calories daily.

Recreational CrossFit Member

BMR: 1,847 calories, TDEE: 2,700 calories

This member should aim for 2,700 calories to fuel regular WODs and maintain strength.

Female CrossFit Games Aspirant

BMR: 1,485 calories, TDEE: 2,600 calories

To train and compete at a high level, this athlete requires around 2,600 calories per day.

Older CrossFit Enthusiast

BMR: 1,370 calories, TDEE: 1,800 calories

This member needs approximately 1,800 calories to support her functional fitness goals.

Understanding BMR and TDEE

BMR represents the number of calories your body needs at rest to maintain essential functions. TDEE takes into account your activity level, giving a more comprehensive view of your daily caloric needs. Both metrics are vital for setting nutrition goals.

Why Nutrition Matters in CrossFit

Proper nutrition fuels your workouts and aids recovery. Knowing your caloric needs helps prevent underfueling or overfueling, both of which can hinder performance. Tailoring your intake based on BMR and TDEE keeps you at peak performance.

Adjusting Intake for Goals

If you're aiming to lose weight, you'll want to maintain a caloric deficit from your TDEE. Conversely, for muscle gain, a caloric surplus may be necessary. Adjust your macronutrients accordingly to align with your fitness goals.

Tips for CrossFit

Track your food intake for a week to understand your eating habits better.
Reassess your BMR and TDEE every few months, especially if your weight or activity level changes.
Consider working with a nutrition coach to personalize your diet based on your CrossFit goals.

Track all your crossfit metrics in FirstRep. Start free with up to 3 clients.

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Frequently Asked Questions

What is BMR?

BMR stands for Basal Metabolic Rate, which is the number of calories your body needs to maintain basic physiological functions at rest.

How often should I calculate my TDEE?

It's recommended to recalculate your TDEE every 3-6 months or when significant changes in weight or activity level occur.

Can I use this calculator for weight loss?

Yes, you can use your TDEE to create a caloric deficit for weight loss while ensuring you still fuel your workouts appropriately.