Free local tool

Critical Path Method Calculator

Calculate a bounded Finish-to-Start project schedule, total float, duration, and critical tasks from task dependencies.

Private by design: inputs and local files stay in this browser tab. The tool sends no input to a server and stores nothing after the page closes.

JavaScript is required for the interactive tool.

Method and limits

Supports up to 200 tasks and 5,000 Finish-to-Start dependency edges with finite nonnegative abstract durations. A topological cycle check precedes O(V+E) forward and backward passes. Leads, lags, PERT, resource leveling, calendar dates, collaboration, and cost optimization are outside scope. This is unrelated to advertising cost per mille.