Calculate your daily calorie needs based on your age, gender, height, weight, activity level, and body fat percentage. Get personalized calorie recommendations for weight maintenance or various levels of weight loss.

Calorie Calculator

Purpose

The Calorie Calculator function helps you determine your daily calorie needs based on your age, gender, height, weight, activity level, body fat percentage, and chosen formula.

Use Cases

• Calculate daily calorie needs for maintaining weight
• Calculate daily calorie needs for mild weight loss (0.5 lb/week)
• Calculate daily calorie needs for weight loss (1 lb/week)
• Calculate daily calorie needs for extreme weight loss (2 lb/week)

How to Use

1. Enter your age, gender, height, weight, activity level, body fat percentage, and choose a formula.
2. Click on the calculate button to get your results.

Input Values

1. Age - Enter your age in years.
2. Gender - Select your gender from the dropdown menu.
3. Height - Enter your height in feet and inches.
4. Weight - Enter your weight in kilograms.
5. Activity Level - Select your activity level from the dropdown menu.
6. Body Fat Percentage - Enter your body fat percentage in percentage.

Default unit is years for age, feet and inches for height, kilograms for weight, and percentage for body fat percentage.

Output Values

1. Maintain Weight - Daily calorie needs to maintain your current weight.
2. Mild Weight Loss (0.5 lb/wk) - Daily calorie needs for mild weight loss.
3. Weight Loss (1 lb/wk) - Daily calorie needs for weight loss.
4. Extreme Weight Loss (2 lb/wk) - Daily calorie needs for extreme weight loss.

Output unit of measurement is calories per day.

Any other Instruction

• It's important to be as accurate as possible with your inputs for the most precise results.
• Consult with a healthcare professional before making significant changes to your diet or exercise routine based on these results.

Code Analysis

1. Calculate the Basal Metabolic Rate (BMR) based on the provided inputs and chosen formula.
2. Adjust the BMR based on the activity level to get the total daily calorie needs.
3. Return the calculated calorie needs for different weight management goals.

Technical Parameters

age, gender, height, weight, activity, formula, body_fat

Return Values

Maintain Weight, Mild Weight Loss (0.5 lb/wk), Weight Loss (1 lb/wk), Extreme Weight Loss (2 lb/wk)

Example Expressions

You can use the following expressions to directly evaluate in a non-interactive manner using eval():

calorie_needs(age='25 yr', gender='F', height='5.2 ft', weight='55.0 kg', activity=1.5, formula='M', body_fat='25 pct')
calorie_needs(age='40 yr', gender='M', height='6.0 ft', weight='70.0 kg', activity=1.2, formula='K', body_fat='15 pct')

Click on Help icon to open the help page on a separate window.