PROJECT MANAGEMENT TOOLS
Calculate, interpret, and check your work.
Each calculator explains its formula, inputs, assumptions, and limits. Use the results as decision support, not as an automatic forecast.
Communication Channels Calculator ↗
Calculate the number of potential one-to-one communication channels in a group and understand why the formula is not a workload forecast.
CPI and SPI Calculator ↗
Calculate cost and schedule performance indexes from earned value data, then interpret efficiency without confusing value-based schedule results with time.
Critical Path Method Calculator ↗
Calculate a simple finish-to-start network duration and critical activities from activity durations and predecessors, with clear scope and model limitations.
EAC and ETC Calculator ↗
Forecast estimate at completion and estimate to complete from BAC, EV, and AC when current cost efficiency is expected to continue.
Earned Value Management Calculator ↗
Calculate CV, SV, CPI, SPI, and a CPI-based EAC while learning what each earned value result means and which assumptions limit the forecast.
PERT Three-Point Estimation Calculator ↗
Calculate a PERT expected estimate, standard deviation, and variance from optimistic, most likely, and pessimistic values using consistent units.
Project Schedule Variance Calculator ↗
Calculate earned-value schedule variance and SPI, then interpret results in value units without presenting schedule variance as days or weeks.
Risk Probability and Impact Matrix ↗
Calculate an illustrative probability-impact score and priority band while preserving organization-specific scales, thresholds, and risk appetite.