I didnt look but http://unitsofmeasure.org http://unitsofmeasure.org which is part of the HL7 standard for electronic medical records might be an interesting s

I didnt look but http://unitsofmeasure.org http://unitsofmeasure.org which is part of the HL7 standard for electronic medical records might be an interesting source/reference It has zillions of base units and a algebra syntax for definitions of many more Edit: "common" units https://github.com/ucum-org/ucum/tree/main/common-units https://github.com/ucum-org/ucum/tree/main/common-units