This measurements problem has been an issue for a very long time. Here is a short excerpt from Mac Tutor. https://mathshistory.st-andrews.ac.uk/HistTopics/Measurement/

"It is not surprising that the earliest mathematics which comes down to us is concerned with problems about weights and measures for this indeed must have been one of the earliest reasons to develop the subject. Egyptian papyri, for example, contain methods for solving equations which arise from problems about weights and measures.

A later civilisation whose weights and measures had a wide influence was that of the Babylonians around 1700 BC. Their basic unit of length was, like the Egyptians, the cubit. The Babylonian cubit (530 mm), however, was very slightly longer than the Egyptian cubit (524 mm). The Babylonian cubit was divided into 30 kus which is interesting since the kus must have been about a finger's breadth but the fraction 1 /30 is one which is also closely connected to the Babylonian base 60 number system. A Babylonian foot was 2 /3 of a Babylonian cubit."

So without the internet, how did Babylonians convert to Egyptian cubits?...lol

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”