Estimate body fat percentage using BMI-based formula adjusted for age and gender. Shows fitness range and category. Everything runs locally in your browser — nothing is uploaded.
Calculate body fat percentage using the US Navy circumference method. Enter waist, neck, height, and hip measurements. Everything runs locally in your browser — nothing is uploaded.
Calculate lean body mass from total weight and body fat percentage. Understand your muscle mass versus fat mass. Everything runs locally in your browser — nothing is uploaded.
Calculate BMI for children with age and gender considerations. Track childhood growth and weight status. Everything runs locally in your browser — nothing is uploaded.
Computes percentage values, percentage increases and decreases, and what-percent-of-what relationships with precise decimal arithmetic. Essential for everyday math — tips, discounts, tax rates, grade scores, and statistical comparisons where quick percentage answers are needed.
Calculate exact age in years, months, and days from a date of birth in DD/MM/YYYY format. Includes eligibility check for Indian government age requirements.
Body Fat Estimator lets you estimate body fat percentage using BMI-based formula adjusted for age and gender. Shows fitness range and category. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Estimate body fat percentage using BMI-based formula adjusted for age and gender. Shows fitness range and category. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Enter numeric values in the input fields — amounts, rates, or percentages.
Yes. After the initial page load, Body Fat Estimator runs entirely on your device with no internet connection needed. All processing is done locally.
The formula uses BMI, age, and gender to estimate body fat percentage: BF% = (1.20 × BMI) + (0.23 × Age) - (10.8 × Gender) - 5.4, where Gender = 1 for male, 0 for female.
Within 3-5% of DEXA scans for most body types. Less accurate for athletes with high muscle mass, elderly, or very lean individuals. Use as a general indicator.
Essential fat, athletes, fitness, acceptable, and obese categories for both men and women. These follow WHO and ACSM guidelines.
Height, weight, age, and gender. The tool calculates BMI internally and applies the age/gender adjustment.
No. All calculations run locally in your browser. No health data is transmitted.
Body Fat Percentage Calculator
Calculate body fat percentage using the US Navy circumference method. Enter waist, neck, height, and hip measurements. Everything runs locally in your browser — nothing is uploaded.
BMI Calculator
Computes Body Mass Index from metric or imperial height and weight inputs, categorizing the result into underweight, normal, overweight. Everything runs locally in your browser — nothing is uploaded.