Comment by tzs

Being a 6'2" tall guitar player doesn't actually say big hands. There is some correlation between hand size and height, but plenty of variation. I'm a 6'1" tall guitar player and I have small hands.

Here's an interesting paper on hand size and height: Guerra, R., Fonseca, I., Pichel, F. et al. Hand length as an alternative measurement of height. Eur J Clin Nutr 68, 229–233 (2014). https://doi.org/10.1038/ejcn.2013.220.

Here's what they did:

> A cross-sectional study was conducted using a consecutive sample of 465 inpatients (19–91 years), from a university hospital. Participants were randomly divided into a development sample of 311 individuals and a cross-validation one. A linear regression model was used to formulate the equation. Intraclass correlation coefficients (ICCs) for single measures and differences between measured height (MH) and PH and between BMI calculated with MH (BMIMH) and with PH (BMIPH) were determined.

and here were the results:

> The regression equation for PH is: PH (cm)=80.400+5.122 × hand length (cm)—0.195 × age (years)+6.383 × gender (gender: women 0, men 1) (R=0.87, s.e. of the estimate=4.98 cm). MH and PH were strongly correlated, ICCs: 0.67-0.74 (P<0.001). Differences were small, mean difference±s.d., ⩽−0.6±4.4 cm (P⩾0.24). BMIMH and BMIPH were strongly correlated, ICCs: 0.94-0.96 (P<0.001). Differences were small, ⩽0.3±1.7 kg/m2 (P⩾0.10).

Here's that regression equation in easy to read form, where H is the predicted height in cm, H is hand length in cm, G is 0 for women and 6.383 for men, and A is age in years:

  H = 80.400 + 5.122 L - 0.195 A + G

Plugging in my H, A, and G and solving for L I get 21.8 cm. My actual hand size is 19.5 cm.

Going the other way, from my hand size, age, and gender my predicted height is 5'8".