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Macro Calculator

Calculate your optimal macronutrient ratios using the calculator below based on your age, height, weight, gender, and activity level.

What Are Macros?

Each of the foods we eat are made up of three “macros” (macronutrients). These macros are carbohydrate (carbs), protein, and fat. Chicken is high in the protein macro but has no carbs. Rice is high in carbs, but very little fat or protein.

This calculator tells you the best ratio of macros that you should eat to achieve your goals. From there, you need to determine the macros of all the foods you eat. By counting them each day, you can reach a target that leads to fat loss.

Lose, Maintain, or Gain?

This macro calculator gives you the ability to adjust your macros at 4 different goal settings.

  • Lose puts you in a 20% calorie deficit which promotes safe, steady weight loss.
  • Lose 10% puts you in a 10% calorie deficit and is intended for those with less than 4.5KG to lose and who also wish to build muscle at the same time.
  • Maintain allows you to eat at macro levels that will keep you at your current weight.
  • Gain puts you in a 20% calorie surplus and is designed for people who are wanting to build muscle fast in conjunction with a comprehensive weight training program. It can also be used by people who are underweight.

How Do You Calculate the Macros?

The following formula is used:

  1. Protein ratio is set at .375 grams per kilo of bodyweight but this can be adjusted depending on your individual stats and goals.
  2. Fats are set at 30% of daily energy expenditure.
  3. Carbohydrate grams come from the remainder.

Daily energy expenditure is calculated from your age, gender, height, weight, and exercise output.

Normal or Lean Mass?

The default (normal) formula is fine for most people. However, there are some exceptions.

  1. If you are very lean (low body fat percentage) the default formula may not be accurate. Use the “Lean Body Mass” setting. This uses a formula that factors specific body fat percentage into the equation and since muscle tissue burns many more calories than fat tissue while even at rest, it will give you a higher TDEE. This is perfect for “athletic body types” that want to use macro counting to gain more muscle mass.
  2. If you are classified as obese and have a lot of weight to lose, the standard formula will not be accurate because the equation used, factors for an average body fat percentage. If you happen to be above average it will skew the results. Please seek more clarification on how to do macro counting if you are obese.

Activity Level

A higher activity level means a higher daily calorie goal (TDEE). For example; if you can maintain your weight at 2,000 calories per day, then adding vigorous daily exercise to this means you need more calories to maintain your weight. The same rule applies even if your goal is to lose weight.

If you are sedentary and your goal is to lose weight, your calorie goal might be (for example) 1,600 calories per day. If you decide to start exercising, the calculator will increase your daily calorie goal (say, to 1,800 calories/day). Although it may seem counter-intuitive, more energy is required to fuel your workouts, and your metabolism is increased – therefore calories should be higher.

Many people struggle with which exercise level to choose. Basically each level breaks down as follows:

  • Sedentary: Just normal everyday activity like a little walking, a couple flights of stairs, eating etc.
  • Light: Any activity that burns an additional 200-400 calories for females or 250-500 calories for a males more than your sedentary amount.
  • Moderate: Any activity that burns an additional 400-650 calories for females or 500-800 calories for males more than your sedentary amount.
  • Extreme: Any activity that burns more than about 650 calories for females or more than 800 calories for males in addition to your sedentary amount.

This varies based on your individual stats, but you can get a more specific amount of calorie burn by simply subtracting your sedentary calorie amount from the chosen exercise level amount.

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