Conicity Index: Females, Age 55-59

What these numbers mean

A value around 1.326 index is typical (50th percentile) for females in this age group. The middle 50% of the reference population fall between about 1.270 index and 1.384 index; values below or above that central range sit in the lower or upper half of the distribution.

These percentiles reflect the US population (adult obesity rate 42.4% by BMI, Hales et al. 2020); in a leaner population the same Conicity Index would be expected to rank at a higher percentile, though we did not find a directly comparable non-US Conicity table to quantify that.

Also see: 50-54 · 60-64 · All ages

Data source: NHANES (CDC), derived Conicity Index percentiles (2026) · n=18.9K About this study

Reference population: US adults aged 20 and over from three pooled NHANES cycles (2015-2016, 2017-March 2020, 2021-2023), nationally representative

Conicity Index Body Composition Females 55-59

Conicity Index Percentile Chart (index)

Very low 1.177 index
Low 1.270 index
Average 1.326 index
High 1.384 index
Very high 1.468 index
Conicity Index percentile distribution chart for Females, age 55-59 5th 5th: 1.177 index (Very low) 1.177 Very low 25th 25th: 1.270 index (Low) 1.270 Low 50th 50th: 1.326 index (Average) 1.326 Average 75th 75th: 1.384 index (High) 1.384 High 95th 95th: 1.468 index (Very high) 1.468 Very high 0 0.3 0.6 1.0 1.3 1.6 index Conicity Index percentile distribution chart for Females, age 55-59 5th 5th: 1.177 index (Very low) 1.177 Very low 25th 25th: 1.270 index (Low) 1.270 Low 50th 50th: 1.326 index (Average) 1.326 Average 75th 75th: 1.384 index (High) 1.384 High 95th 95th: 1.468 index (Very high) 1.468 Very high 0 0.3 0.6 1.0 1.3 1.6 index

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

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Other age brackets
20-2425-2930-3435-3940-4445-4950-5460-6465-6970-7475-7980+ All
Males data Males, 55-59
Age trend

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