Body Fat Calculator (PRO)

Body fat calculator with 9 research-backed formulas, measurement history, and Apple Health sync. Cross-check methods and know your real numbers.

Your weight doesn't tell the whole story. Body fat percentage is what actually matters for health, fitness, and performance — and most apps only give you one rough estimate.

Body Fat Calculator gives you 9 different research-backed formulas so you can cross-reference results and get the most accurate picture of your body composition.

THREE FREE METHODS

• YMCA — quick estimate using weight and waist
• Modified YMCA — improved accuracy with additional measurements
• U.S. Navy — the same formula used by the military to assess fitness

SIX PRO+ METHODS

• Jackson & Pollock 3-Site, 4-Site, and 7-Site — the industry standard for skinfold testing
• Durnin & Womersley — clinical gold standard used in exercise science research
• Covert Bailey — comprehensive method using multiple circumference sites
• Parrillo 9-Site — the most detailed method, designed for bodybuilders and athletes

Every formula is implemented directly from peer-reviewed research with documented accuracy ranges (±3–7% depending on method and technique).

TRACK YOUR PROGRESS

• Save every measurement to your history
• See how your body composition changes over time
• Attach progress photos to saved measurements
• iCloud sync across your iPhone and iPad

HEALTH APP INTEGRATION

• Sync body fat, weight, height, and lean mass with Apple Health
• Your data flows into your complete health picture automatically

MEASUREMENT REMINDERS

• Set weekly or monthly reminders so you never miss a check-in
• Stay consistent and watch your progress build

BUILT FOR PRIVACY

• No account required — ever
• Your measurements stay on your device (or your personal iCloud)
• No data sold, no tracking, no ads

WORKS WITH ANY TOOLS Compatible with all major skinfold calipers including Harpenden, Lange, Slim Guide, Accu-Measure, Bozeera, FatTrack, and Lafayette. Works with any anthropometric tape measure. Visual guides show you exactly where and how to measure.

PRO+ unlocks all 9 formulas, 2-decimal precision, measurement history, progress photos, iCloud sync, Apple Health integration, and reminders. Available as a monthly or annual subscription, or as a one-time lifetime purchase.

Download now and know your real numbers in 30 seconds.

Privacy Policy: https://www.bodyfatcalculator.pro/privacy-policy Terms of Service: https://www.bodyfatcalculator.pro/terms-of-service Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/