Critical Path Calculator
Calculate critical path duration, ES, EF, LS, LF for project activities.
Inputs
days
days
days
days
days
Results
Critical Path Duration
25 days
Path A Duration (1→2→4)23 days
Path B Duration (1→3→5→4)25 days
Path A Float2 days
Path B Float0 days
Critical Path is B (1=Yes)1
Avg Activity Duration6.6 days
A1EF5
A1LF5
How to Use This Calculator
- Enter the duration and dependencies for each task in the project.
- The calculator identifies the longest path through the network.
- Review the critical path tasks — any delay here delays the entire project.
- Use float (slack) values for non-critical tasks to optimize resource allocation.
- Update the schedule regularly as tasks complete and durations become known.
Ad Placeholder
Related Calculators
Ad Placeholder