Results
๐
Body Fat % (Navy)
0%
Category: โ
๐งช
Body Fat % (Skinfold)
โ
Add caliper data for comparison
๐ช
Lean Body Mass
0 kg
Fat mass: 0 kg
๐ฏ
Target Range
โ
Adjustment guidance
Essential
โ
Minimum required for basic physiological function.
Athletic
โ
Typical of competitive athletes.
Fitness
โ
Healthy and sustainable for most adults.
Average
โ
Common population range; monitor for gradual improvements.
Obese
โ
Higher risk bracket; consult healthcare provider.
Skinfold and Navy methods align closely.
๐ How to Use
Measure height, weight, and circumferences using a flexible tape. For accurate readings, stand tall, relax muscles, and take measurements twice to verify consistency. Optionally include a 3-site skinfold total for a second estimate. Choose the calculation method or compare both to understand your range.
๐งฎ Formula
US Navy:
Male BF% = 495 / [1.0324 โ 0.19077 log10(waist โ neck) + 0.15456 log10(height)] โ 450
Female BF% = 495 / [1.29579 โ 0.35004 log10(waist + hip โ neck) + 0.22100 log10(height)] โ 450
YMCA Skinfold:
Male BF% = (0.1051 ร ฮฃSF) + 2.585
Female BF% = (0.1548 ร ฮฃSF) + 3.580
๐ก Tips
- Measure at the same time each day, ideally morning, to reduce fluctuation.
- If numbers vary, remeasure or average multiple days for a stable trend.
- Pair body fat tracking with circumference photos and strength logs.
- Significant differences between Navy and skinfold readings suggest measurement errorโdouble-check tape placement.