PERT Calculator | Project Management Instructions: Use this calculator to find the PERT by entering values of optimistic (a), most likely (m), and pessimistic (b). Please input the desired values in the form below: Tags: PERT calculator, PERT calculator excel You Might Also Like Cost Variance Calculator – Project Management August 1, 2021 Cost Performance Index (CPI) Calculator – Project Management August 1, 2021 Schedule Variance Percentage (SVP) Calculator – Project Management August 1, 2021