Age Calculator

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Popular Calculators

Professional tools designed for accuracy and speed.

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Adult BMI Calculator

WHO & CDC adult BMI with race-specific classification and healthy weight range.

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BMI Calculator for Women

Slightly adjusted screening categories for biological structures.

Body Fat Calculator

Estimate body fat percentage with US Navy circumference formulas, ACE categories, and Jackson & Pollock ideal targets.

Waist-to-Height Ratio (WHtR)

Measure cardiovascular risk index with tummy guidelines.

Waist-to-Hip Ratio (WHR)

Explore scientific adipose metrics and visceral health ratios.

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BMI Calculator for Men

Targeted scaling metric suitable for standard muscular body frames.

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Asian BMI Calculator

Calculate BMI using WHO Asia-Pacific and country-specific standards for China, Japan, South Korea, Singapore, China (Taiwan), India, Thailand, Malaysia, Philippines, Indonesia, and Vietnam.

BMR Calculator

Estimate basal metabolic rate with Harris-Benedict, Mifflin-St Jeor, Schofield, or Katch-McArdle formulas.

Child & Teen BMI Calculator

Track growth percentiles accurately using official WHO, CDC, and IOTF international standards.

US Army Body Fat Calculator 2026

Calculate your body fat percentage using the US Army's official 2023 one-site tape test formula, then check it against the AR 600-9 maximum allowable standards for your age and sex.

US Navy Body Fat Calculator 2026

Calculate your body fat percentage using the US Navy's official 2026 2-step Body Composition Assessment (BCA) procedures, then check it against the OPNAVINST 6110.1L maximum allowable standards for your gender.

US Air Force Body Fat Calculator 2026

Calculate your body fat percentage and waist-to-height ratio (WHtR) using the US Air Force official 2026 DAFMAN 36-2905 procedures.

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