best ketone meters monitor ketosis

Keto calculator for ketogenic diet macrosThis simple Keto Calculator is an easy way to give you a foundation on the Macronutrient Ratios, in grams and percentages, to base your Ketogenic Diet around. Your focus (for the first month at least) should be on your Macronutrients, not your “Daily Calories Consumed”, as you enter into a new and better way of eating.

Calculating Body Measurements

Enter your current weight in pounds or kilograms into the Keto Calculator then add your body fat percentage.

The most important thing for those beginning the Ketogenic Diet is not total calories consumed ( to start with ) it is your elimination of carbohydrates.

By sticking with the Macro portions of 70% Fat, 25% Protein and 5% (no more than 30gram) Carbohydrates, it has been proven that your appetite will become suppressed naturally. A high-fat diet is very satisfying.

Do this, and you will see a dramatic loss in weight. For more info on Keto Dieting and the psychology of it, all read our article here.



Measuring Body Fat

You can measure body fat ” at home” with skin fold measurements this is explained on page 129 in The Art and Science of Low Carb Living by Dr Jeff S. Volek and Dr Stephen D. Phinney. We highly recommend it, read it if you want to really educate yourself about Ketogenic Dieting. There are also expensive scans such as DXA or DEXA scans which will give you the most accurate and visual summation of your body composition.

If you want to measure your skin folds you will need some inexpensive skin fold calipers that you can get here.

If you are well overweight and for simplicity just put 45 into the Keto Calculator for your Body Fat measurement. The resulting macros will be perfect for you. Don’t get caught up in the technicalities however as they often just become another excuse. Just get started!


For progress and record keeping take photos weekly (at the same time and day) use circumference measurements around the waist, thighs, chest and upper arms.



BMR – Basal Metabolic Rate

BMR is energy the body expends under normal conditions at rest. The Keto Calculator calculates your BMR based on weight and body fat percentage


TEF-Thermic Effect of Food

TEF is calculated at a baseline of 10% of BMR but varies from individual to individual dependent on various metabolic functions.




Lifestyle, Day to Day Activity:

Select your daily routine and activity level below, not including added or deliberate exercise.

Sedentary – Sitting most of the day
Lightly Active – Walking a lot, retail, etc.
Moderately Active – Walking constantly, fast paced enviro.
Vigorously Active – Physically intense, bricklayers, etc
Custom – I’ll set my TDEE in the form below

Input your TDEE into the Keto Calculator form below if you know your daily expenditure. If you’re using a Fitbit, or similar fitness tracker, you can enter your extra calories burnt into the custom TDEE. You can purchase a Fitbit and various other types of fitness trackers here.


Daily Calories

Set your goals in the Keto Calculator form below by selecting one of the three options. The result will adjust as a percentage of your daily calorie needs whether it be a deficit, maintain or surplus to your base TDEE above.

Ketogenic Diet Goal

Lose Body Fat
Maintain Current Weight and Shape
Build Lean Muscle



Calories without Exercise

This is the amount of calories required to achieve your above-mentioned goals without exercise.




Daily Exercise Info

Set your exercise information into the Keto Calculator fields below to give you an idea of how many calories it will add to your Daily Calorie limit.

ActivityMinutesKcal burned / minTotal Kcal burned

Calories with Exercise

The Keto Calculator will adjust this figure dependant on your input in the Daily Exercise section above.




Keto Calculator Daily Macros Results

To lose fat and maintain muscle, leave protein ratio at 0.6 you may adjust the Keto Calculator upwards to 1.0 grams of protein in maintenance or muscle gaining mode.

If you’ve reached your weight loss goal and want to build lean muscle mass, do not exceed 1.0 if you wish to stay in ketosis and reap the keto diets many benefits, physically and cognitively.

Be aware that excess protein can and will throw you out of ketosis and too little protein will see you unable to maintain lean mass (muscle).

Net Carbs

You will note that the total calories for fat per gram in the keto calculator results are much more than both protein and carbohydrates calories per gram. That is because fat contains 9 calories per gram compared to proteins 4 calories per gram as well as carbohydrates 4 calories per gram.

Daily Ketogenic Macronutrient Breakdown as a Percentage