Looked a bit, but not really finding much.

Asking 'cause I’d like to use the expected units, and I’m tired of doing the calculations in Imperial and then converting.

This page: https://www.engineersedge.com/calculators/machining-cutting-speeds-calc.htm list one:

SFM (surface feet per minute) is instead m/min (meters per minute)

I’d like to know the metric for chip load per tooth in particular, but any information on conventions would be welcome