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Project Timeline Calculator

Inputs

Number of Tasks

Total count of tasks in your project

Average Task Duration (days)

Mean duration per task across the project

Dependency Factor (%)

Percentage of tasks dependent on others (0-100). Higher = more sequential work.

Buffer/Contingency (%)

Extra time added for risks and delays (10-30% typical)

Team Efficiency (%)

Team productivity level (100% = perfect execution, <100% = learning curve/rework)

Parallel Task Capacity

Number of tasks executable simultaneously with available resources

Results

Sequential Duration

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Critical Path Duration

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Realistic Project Duration

—

Adjusted for team efficiency and dependencies

Timeline with Buffer

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Time Saved by Parallelization

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Formula

Sequential = Tasks × Avg Duration | Critical = (Sequential × Dependency Factor + Sequential × (1 - Dependency Factor) / Parallel Capacity) | Adjusted = Critical / (Team Efficiency / 100) | Buffered = Adjusted × (1 + Buffer / 100)