TCPI calculator
Calculate required future efficiency against BAC and, optionally, a revised EAC.
Methodology note. Formulas are based on established Earned Value Management terminology. Core references include Project Management Institute (PMI) educational resources and U.S. Department of Energy EVM guidance. Last reviewed: August 14, 2026. Read methodology · View sources
TCPI to BAC
TCPI = (BAC − EV) ÷ (BAC − AC)This asks: how efficiently must the remaining budgeted work be delivered with the money remaining in the original BAC?
TCPI to EAC
TCPI = (BAC − EV) ÷ (EAC − AC)If the original BAC is no longer a credible target, a revised EAC provides a different efficiency target.
Compare TCPI with CPI
The most useful interpretation is often the gap between the CPI achieved so far and the TCPI required from now on. A large positive gap indicates the recovery plan demands better future cost efficiency than the project has demonstrated to date.