[TOMT] A word for when different units measure the same quantity (e.g. feet and meters)

Feet and meters (and inches, and light years, etc.) are all units used to measure distance. Kilograms and pounds both measure weight. Seconds, years, and days all measure the passage of time. These sets of units are all ____. How can I express this?

Is there a specific word or phrase that is used to describe units like this? An adjective along the lines of "analogous" or "comparable"? Or perhaps a noun.

I want to use it in a sentence like "kilowatt-hours, megajoules, and BTU are all _____ units used to express the amount of electricity generated"