IMPOSSIBLE Calculators | Fitness, Nutrition, and Race Calculators

Measurement Unit

What unit do you prefer?

MetricImperial

Your Details

Enter your personal information.

Gender

Male

Female

Your age

years old.

Height

What is your height in feet and inches?

ft.

in.

Weight

What is your weight in pounds?

lbs.

Activity Level

How active are you on a weekly basis?

Sedentary

Not much activity with little to no exercise. Includes most desk jobs.

Lightly active

Light exercises 1-3 times a week and lightly active day jobs such as teaching, etc.

Moderately active

A moderately active day job or scheduled exercise (i.e. riding your bike to work or lifting a few times a week).

Very active

A very active day job (e.g. industrial worker) or intense amount of exercise five or more times per week.

Hyper active

Professional athlete or daily hard exercise

Custom

If you want to input a specific daily caloric expenditure, your input will replace our calculations entirely.

Your Goal

What are your fitness goals?

Macronutrient Distribution

How do you want your macro nutrients to be distributed?

Ketogenic

Carbohydrate 5-10%, Protein 20-30%, Fat 65-80%

Balanced

Carbohydrate 50%, Protein 25%, Fat 25%

Body builder

Carbohydrate 40%, Protein 40%, Fat 20%

Custom

To create a custom distribution, enter a value for each macro nutrient below. The total must equal 100%.

Advanced Fields

Body Fat Percentage

Use Skinfold Calipers to measure your body fat percentage or check online to visually estimate your body fat percentage using comparison images.

%.

Net Carbs

Net carbs are the grams of carbohydrates in a food minus the grams of fiber in it. Typically, 20-30 net carbs is the recommended amount to start with.