Lean Mass Index (LMI): Males, Age 20-24

What these numbers mean

A value around 18.40 kg/m² is typical (50th percentile) for males in this age group. Scores above about 20.24 kg/m² fall near the 75th percentile or higher, indicating above-average performance. Scores below about 17.01 kg/m² fall near the 25th percentile; about 75% of the reference population scored higher.

These are percentiles for all US adults aged 20 and over, from NHANES 1999-2004 Hologic DXA scans. Values from another scanner brand or calibration are not directly comparable, and percentile position is not a clinical category.

Also see: 25-29 · All ages

Data source: FitnessNorms derivation from NHANES 1999-2004 DXA (2026) · n=576 About this study

Reference population: US adults aged 20 and over in NHANES 1999-2004 with measured or NCHS-imputed DXA data, all race and Hispanic-origin groups

Lean Mass Index (LMI) Body Composition Males 20-24

Lean Mass Index (LMI) Percentile Chart (kg/m²)

Poor 14.98 kg/m²
Below average 17.01 kg/m²
Average 18.40 kg/m²
Above average 20.24 kg/m²
Excellent 23.88 kg/m²
Lean Mass Index (LMI) percentile distribution chart for Males, age 20-24 5th 5th: 14.98 kg/m² (Poor) 14.98 Poor 25th 25th: 17.01 kg/m² (Below average) 17.01 Below average 50th 50th: 18.40 kg/m² (Average) 18.40 Average 75th 75th: 20.24 kg/m² (Above average) 20.24 Above average 95th 95th: 23.88 kg/m² (Excellent) 23.88 Excellent 0 5 10 15 20 25 kg/m² Lean Mass Index (LMI) percentile distribution chart for Males, age 20-24 5th 5th: 14.98 kg/m² (Poor) 14.98 Poor 25th 25th: 17.01 kg/m² (Below average) 17.01 Below average 50th 50th: 18.40 kg/m² (Average) 18.40 Average 75th 75th: 20.24 kg/m² (Above average) 20.24 Above average 95th 95th: 23.88 kg/m² (Excellent) 23.88 Excellent 0 5 10 15 20 25 kg/m²

This percentile chart shows how common a value is, not whether it is healthy.

Compare

Other age brackets
25-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+ All
Females data Females, 20-24
Age trend

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