How to calculate pressure for your mod Jul 31, 2020 1:46:27 GMT Quote Select PostDeselect PostLink to PostBack to Top Post by justme on Jul 31, 2020 1:46:27 GMT I made an Excel sheet for my pressure cooker stem and weight replacement using the formulas illustrated here:web.archive.org/web/20101107071902/http://kfc.forumup.co.uk/about832-kfc.htmland verified it with a completely different formula that I found online after a whole lot of searching.