Humanform

Measurement

Thumb Tip To Crotch

25 years · United States

Thumb Tip To Crotch for fit, clearance, and sizing decisions across populations.

Thumb Tip To Crotch for grip, glove, control, and handheld product sizing.

Male–female median gap

Difference between median predictions for the 25yo US cohort.

0.5 cm (9%)

Median male is 0.5 cm larger than median female

Design accommodation range

5th to 95th percentile span for the 25yo US cohort (cm).

Male

Low
5.2 cm
Median
5.8 cm
High
6.5 cm

Female

Low
4.6 cm
Median
5.3 cm
High
6.1 cm

Male vs female distribution

Predicted values at key percentiles for 25-year-olds in the United States (cm).

Related hands measurements

Median values for nearby hands peers in the 25yo US cohort (cm). Male and female medians as paired bars when both are available.

Typical applications

Grip and controls

Size handles, buttons, and grips so thumb tip to crotch fits the intended users.

Gloves and wearables

Set size runs from percentile targets instead of a single sample hand.

Market variants

Compare thumb tip to crotch across countries when a product ships regionally.

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 thumb tip to crotch for the ages, percentiles, genders, and countries you design for. Start with a free API key.