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Velocity (Agile) Calculator

Work out velocity (agile) instantly with clear inputs, formula shown and shareable results.

About Velocity (Agile) Calculator

Velocity is the points completed per sprint, best used as an average over several sprints rather than a single reading. The standard deviation matters as much as the mean: a stable velocity supports forecasting, a volatile one means any forecast needs a wide range.

Formulas

Average velocity

Average = Sum of points completed / Number of sprints

Predictability

Predictability % = 100 - Standard deviation / Average x 100

Worked example

With the default values below, Velocity (Agile) Calculator returns Average velocity of 42.50. Change any input above and every figure here is recalculated in your browser.

Inputs used

Points completed, sprint 1
38
Points completed, sprint 2
44
Points completed, sprint 3
41
Points completed, sprint 4
47

Results

Average velocity
42.50
Most recent two-sprint average
44.00
Standard deviation of velocity
3.35
Predictability
92.11%

Step by step

  1. 1Values used
  2. 2Average velocity
  3. 3Predictability
  4. 4Average velocity= 42.50
  5. 5Most recent two-sprint average= 44.00
  6. 6Standard deviation of velocity= 3.35
  7. 7Predictability= 92.11

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

Should velocity be a target?

No. Making velocity a target causes point inflation and destroys its usefulness as a forecasting input.

How many sprints should the average cover?

Three to five. Fewer is noisy; more masks genuine changes in team composition or working practice.

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Velocity (Agile) Calculator – Calculate Average velocity