Early sizing studies
Use trunk depth at buttocks to set fit targets before physical prototyping.
Measurement
Trunk Depth At Buttocks
Trunk Depth At Buttocks for fit, clearance, and sizing decisions across populations.
Front-to-back trunk depth at buttocks for clearance and spatial packaging studies.
Male–female median gap
Difference between median predictions for the 25yo US cohort.
1.0 cm (4%)
Median male is 1.0 cm larger than median female
Design accommodation range
5th to 95th percentile span for the 25yo US cohort (cm).
Male
- Low
- 25.0 cm
- Median
- 28.5 cm
- High
- 32.0 cm
Female
- Low
- 23.7 cm
- Median
- 27.5 cm
- High
- 31.2 cm
Male vs female distribution
Predicted values at key percentiles for 25-year-olds in the United States (cm).
Related torso measurements
Median values for nearby torso peers in the 25yo US cohort (cm). Male and female medians as paired bars when both are available.
- Front Of Neck To Waist LengthMale 25.4Female 23.5cm
- Waist Depth StandingMale 26.4Female 25.0cm
- Waist To Crotch LengthMale 26.8Female 26.2cm
- Trunk Depth At ButtocksCurrentMale 28.5Female 27.5cm
- Chest BreadthMale 29.6Female 25.7cm
- Whole Body Depth MaxMale 31.2Female 31.0cm
Typical applications
Accommodation bands
Choose percentile ranges for the people you need to include.
Cross-market work
Compare trunk depth at buttocks across countries and cohorts from one catalog.
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 trunk depth at buttocks for the ages, percentiles, genders, and countries you design for. Start with a free API key.