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• Planning & Project Management · Tool

Task Duration Calculator

Estimate working-day duration from task effort and available team capacity.

Enter your figures

Enter the values below to calculate your result.

Calculation Results

Based on the figures you entered.
Estimated duration
6.25 working days
Effective team hours/day12.80 h
This is a capacity-based estimate; task dependencies and coordination overhead are not modeled.

How to use this calculator

What to enter

Enter the values requested in each field: Task effort (hours); People assigned; Hours/person/day; Task availability %. Keep time units, work calendars, and currency amounts consistent, and follow any field notes and validation messages.

What the result means

The schedule result estimates a project or task date, duration, working-day count, milestone, or schedule flexibility from the task and calendar values entered. Check the start/end-date convention, workweek, holidays, dependencies, and whether the end date is inclusive.

When to use it

Use this to plan a project schedule or check a target date. Update dependencies and calendars when plans change; actual delivery can be affected by resource constraints, delays, and work that is not represented in the inputs.