Feature Estimate
Estimate feature work from story points, capacity and team size.
About Feature Estimate
Story points times hours per point gives total work, which divides by weekly capacity into person-weeks and then by team size into calendar time. Estimating in points rather than hours stabilizes planning, but converting to calendar weeks is what actually schedules a release.
Formula
Feature Estimate
Person-weeks = story points x hours per point / capacity; calendar weeks = / team size
- story points
- Relative size assigned to the feature
Worked example
With the default values below, Feature Estimate returns Total Hours of 104. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Story pointsminimum 0
- 13
- Hours per pointminimum 0
- 8
- Team sizeminimum 1
- 2
- Weekly capacity hoursminimum 1
- 40
Results
- Total Hours
- 104
- Person-Weeks
- 2.60
- Calendar Weeks
- 1.30
- Dev Days
- 17.3
Step by step
- 1Values used
- 2Feature Estimate
- 3Total Hours= 104
- 4Person-Weeks= 2.60
- 5Calendar Weeks= 1.30
- 6Dev Days= 17.3
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Feature Estimate calculated?
Person-weeks = story points x hours per point / capacity; calendar weeks = / team size Story points times hours per point gives total work, which divides by weekly capacity into person-weeks and then by team size into calendar time.
Why does Feature Estimate matter?
Estimating in points rather than hours stabilizes planning, but converting to calendar weeks is what actually schedules a release.
What values do I need to enter?
This calculator takes 4 inputs: Story points, Hours per point, Team size, Weekly capacity hours. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.