Inbody Calorie and Protein Calculator

Inbody results from your OTF or F45 studio can be insightful, but also confusing. Use this calculator to learn how many calories you should eat per day for weight loss or maintenance based on your BMR, and how much protein is important to have for muscle building and repair.

You’ll notice there is not a result for carbs and fat. That’s because these are less important to your overall results. In general, I like to set carbs at around 40% of total calories. and fat at around 30% of total calories. This depends on your personal preferences and lifestyle but is a good guideline.

Note that this calorie and protein target calculator is meant as a guideline and not as a replacement for the personalized advice and analysis of a Registered Dietitian or physician.

If you don’t have inbody scan results, you can use this calculator

This calculator uses the Mifflin St Jeor formula, but I have given the activity factor options a slight tweak to make them more understandable because they can be very confusing.

Please note that this calculator will not work as well if your BMI is over 30 or so. This is really annoying but that’s the limitation of any of the formulas out there that do not use body fat percentage. My recommendation is to enter your weight as if your BMI was 30 and that will give you the best results. I’m not a big fan of BMI and don’t use it in my practice, but for an online calculator that can’t take everything possible into account it can be useful.