Apparel and soft goods
Use knee circumference to set size grades before cutting samples.
Measurement
Knee Circumference
25 years · United States
Knee Circumference for fit, clearance, and sizing decisions across populations.
Girth around the knee circumference, used to set fit bands for apparel, equipment, and protective gear.
Male–female median gap
Difference between median predictions for the 25yo US cohort.
1.8 cm (6%)
Median male is 1.8 cm larger than median female
Design accommodation range
5th to 95th percentile span for the 25yo US cohort (cm).
Male
- Low
- 28.9 cm
- Median
- 32.0 cm
- High
- 35.1 cm
Female
- Low
- 27.0 cm
- Median
- 30.2 cm
- High
- 33.3 cm
Male vs female distribution
Predicted values at key percentiles for 25-year-olds in the United States (cm).
Related legs measurements
Median values for nearby legs peers in the 25yo US cohort (cm). Male and female medians as paired bars when both are available.
- Circumference Below KneeMale 28.8Female 27.4cm
- Knee CircumferenceCurrentMale 32.0Female 30.2cm
- Calf CircumferenceMale 38.2Female 36.3cm
- Leg LengthMale 41.8Female 38.1cm
- Outside Leg LengthMale 41.8Female 38.1cm
- Thigh LengthMale 42.8Female 39.1cm
Typical applications
Wearable and gear fit
Size straps, harnesses, and protective gear to population girth.
Market variants
Compare girth across countries when a size run must travel.
API example
Request a median prediction for a 25-year-old man in the United States. Replace the API key with yours from the dashboard.
Coverage at a glance
176 countries
Population coverage for cross-market work
1–88
Age span for developmental and adult cohorts
1–99
Percentile range for accommodation studies
mm, cm, in
Output units for your design system
Start with a free API key
Request knee circumference for the ages, percentiles, genders, and countries you design for. Start with a free API key.