A phone charging cable is never going to be more than 10' long
Simpler – use your arm span
It's [within a small percentage] the same length as your height
September 03, 2020 at 11:09AM
via reddit https://www.reddit.com/r/LifeProTips/comments/ilv6af/lpt_use_an_iphone_cable_to_measure_long_distances/g3uso9w?utm_source=ifttt