ZIPP has a pressure calculator for tubeless tires on their website.
https://axs.sram.com/guides/tire/pressure
Silca has one too.
https://info.silca.cc/silca-professi...ure-calculator
Unfortunately, pump gauges can be quite inaccurate. My old silca pump was reading about 8 psi higher than a calibrated reference gauge, so my actual tire pressure was a lot lower than I thought it to be. Without an accurate gage, a pressure calculator isn't valuable.