While inputting your information, you may find that some of the sections and terms are confusing. If this is the case for you, simply click on the lower case “i” logo located near the title of each section of our keto calculator. After you click on the lower case “i” logo, you will be directed to a brief explanation that should answer your questions.

If you are still unsure of how to use the keto calculator or if you think you aren’t getting the right keto macro numbers, read through the other Q&As and comments below, you will probably find the answer there.

If you still don’t find the answer, please submit a comment with the question and we will address it as soon as possible.

Most people aim for a specific goal on a ketogenic diet. We aim to make sure the results of the calculator are accurate and can be used by anyone.

Our keto calculator uses the Mifflin-St.Jeor Formula, which was the most accurate (versus the Katch-McCardle Formula or the Harris-Benedict Formula) in a few studies. In this formula, the gender, height, weight, and age are needed to calculate the number of calories to consume.

Why do you need my body fat percentage?

Our keto calculator uses body fat percentage to calculate your lean body mass. Using this number, we’re able to calculate how much protein you need to sufficiently lose weight without losing excess muscle. Eating too little or too much protein on a ketogenic diet (or any diet) can lead to dangerous or unwanted results.

DEXA scans are proven to be the most accurate measurement of body fat. They’re commonly available at gyms and some doctor offices when requested. If you don’t have access to this, you can always go the old-fashioned route and use a good quality caliper. The last resort is to use a guide to visually estimate – this can sometimes be a little bit inaccurate, so try to over estimate your body fat percentage.



Why do you need to know my activity level?



This will give us an idea of how much the minimum amount of calories your body will burn in a day. Our keto calculator uses this to calculate your Basal Metabolic Rate (BMR). We use this number, along with your body fat percentage, to estimate how many calories you’ll need for your goals.

BMR is simply the number of calories we burn while our bodies are at rest and from eating and digesting food. Together they form what’s known as TDEE, or total daily energy expenditure. This is the keto calculator’s estimate for your total calories burned per day. If you use a heart rate monitor or third party software to monitor you