Project Capacity Duration CalculatorFree online date & time calculator — instant results, no sign-up
Estimate working days from effort and daily team capacity.
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About the Project Capacity Duration Calculator
Estimate working days from effort and daily team capacity. Duration arithmetic rather than a timezone-aware calendar prediction. Fractional quantities are permitted; no public holidays are inferred. Assumes work is fully parallelizable.
- Remaining effort
- Enter remaining effort in person-hours. Accepted minimum: 0.
- Team size
- Enter team size in people. Accepted minimum: 1.
- Productive hours per person per day
- Enter productive hours per person per day in h. Accepted minimum: 1e-06.
Formula and method
Result = effort / (people * hours) [working days]
- effortRemaining effort (person-hours)
- peopleTeam size (people)
- hoursProductive hours per person per day (h)
Estimate working days from effort and daily team capacity. Substitute the variables using the units defined above. Duration arithmetic rather than a timezone-aware calendar prediction. Fractional quantities are permitted; no public holidays are inferred. Assumes work is fully parallelizable.
Worked example
These are the calculator's starting values and the results it actually produces for them.
Inputs
- Remaining effort160 person-hours
- Team size4 people
- Productive hours per person per day5 h
Results
- Result8 working days
How to use the Project Capacity Duration Calculator
- 1Enter remaining effort in person-hours.
- 2Check team size, productive hours per person per day.
- 3Read the working days result and compare the stated assumptions with your situation.
Reading your result
Estimate working days from effort and daily team capacity. The displayed quantity is working days. A negative value, when the formula permits one, describes the direction of the difference—not a positive gain.
Limitations
Duration arithmetic rather than a timezone-aware calendar prediction. Fractional quantities are permitted; no public holidays are inferred. Assumes work is fully parallelizable. Numeric results are rounded for display; the calculation does not establish that your chosen inputs represent a realistic or permitted scenario.
Common questions
Which units does Project Capacity Duration require?+
Remaining effort: person-hours; Team size: people; Productive hours per person per day: h. Do not mix incompatible units.
What assumptions matter for Project Capacity Duration?+
Duration arithmetic rather than a timezone-aware calendar prediction. Fractional quantities are permitted; no public holidays are inferred. Assumes work is fully parallelizable.
How should I check a Project Capacity Duration result?+
Use the formula above with the shown starting inputs and compare the worked example generated from the tool. Check the original measurements and terms before using the figure.
Does the calculator save my information?+
Calculations run in your browser. While signed in, inputs and results are automatically recorded in account history; saving a result creates a separate saved record.
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Results are estimates for informational purposes and are not financial, medical or legal advice.