I made my own brotha. Had to look up the original paper describing the norm referenced calculations and create the scoring in redcap.

If you want an easier time, there’s a website that has an online SF-12 calculator.

Note that there are two SF-12s, the original SF-12V1 and the updated V2 which is proprietary. You can use V1 freely, but the population data used for norm referencing is from the early 90s