Body Fat Calculator Percentage

Age (years): Gender: MaleFemale Weight (lbs): Waist Circumference (inches): Neck Circumference (inches): Height (inches): Calculate Body Fat Percentage:

 

Introduction

Calculating body fat percentage is crucial for maintaining a healthy lifestyle. A precise Body Fat Calculator aids in monitoring fitness progress and tailoring workout and nutrition plans. In this article, we’ll provide a step-by-step guide on how to create a functional Body Fat Calculator using HTML and JavaScript.

How to Use

1. Input your age, gender, weight, and waist circumference in the designated fields.
2. Click the “Calculate” button to obtain your body fat percentage.

Formula

The Body Fat Calculator employs the U.S. Navy formula for accurate results:

$\text{Body Fat Percentage}=495/(1.0324-0.19077\times \log (\text{waist}-\text{neck})+0.15456\times \log (\text{height}))-450$

Example

Suppose a male with a waist circumference of 32 inches, neck circumference of 15 inches, height of 70 inches, and age of 30. Plugging these values into the formula:

Body Fat Percentage=495/(1.0324−0.19077×log⁡(32−15)+0.15456×log⁡(70))−450

The result will be the accurate body fat percentage.

FAQs

Q: What is the significance of calculating body fat percentage?

A: Calculating body fat percentage is crucial for assessing fitness levels, setting realistic fitness goals, and tailoring personalized nutrition and exercise plans.

Q: Why use the U.S. Navy formula?

A: The U.S. Navy formula is considered reliable and accurate, taking into account various factors such as age, gender, height, weight, waist, and neck circumference.

Q: Can this calculator be used by both men and women?

A: Yes, the calculator is designed to be used by both men and women. The formula incorporates gender-specific constants for accurate results.

Q: How often should I calculate my body fat percentage?

A: It is recommended to calculate body fat percentage periodically, such as every month, to track changes and adjust fitness plans accordingly.

Conclusion

Creating a Body Fat Calculator using HTML and JavaScript provides a convenient way to monitor and manage fitness goals. The accuracy of the U.S. Navy formula ensures reliable results for both men and women, making it a valuable tool for maintaining a healthy lifestyle.