How does the Critical Path Calculator work?

List all project tasks and dependencies Then: Calculate duration for each task Then: Find all paths through tasks Then: Identify longest path (critical path).

Can you give an example of how to use the Critical Path Calculator?

Example: Input A→B→C 12days gives a result of 12 day min.

Is the Critical Path Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Critical Path Calculator?

Our Critical Path Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Financial

Critical Path Calculator

Critical Path Duration

Task Durations (days, comma-separated)

Identifies the longest sequence of dependent tasks determining minimum project duration. Changes to critical tasks directly impact completion date.

Difficulty:intermediate

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Did You Know?

Proper critical path analysis reduces project delays by 20-40% vs. informal scheduling.

References

›Critical Path Method

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Critical Path Calculator

Critical Path Duration

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Critical Path Duration