Project Management

Velocity Stability Index

Analyze sprint velocity consistency with a normalized stability index.

Last validated: 2026-02-14

Use this free online Velocity Stability Index to quantifies variation in completed work across recent sprints. It supports planning, prioritization, and stakeholder discussions by turning assumptions into numbers or summaries people can compare. The form focuses on Velocities and returns Velocity Inputs, Result, so you can move from input to answer without setting up a spreadsheet or custom script. Run one realistic example, adjust the inputs, and compare how the result changes before you copy or share it. Use the result as decision support, then confirm constraints, dependencies, and human factors before changing delivery or staffing plans.

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Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

Velocity Inputs

Enter sprint velocities as comma-separated values.

Result

Sprints analyzed: 6

Average velocity: 28.50

Std deviation: 1.87

Coefficient of variation: 6.56%

Stability index: 93.44 / 100

Stability band: High

How to use this tool

Enter Velocities for the velocity stability index, keeping units, dates, or text format consistent with the form labels.
Confirm the planning horizon, team assumptions, and workload context before calculating the result.
Click "Run the tool" and review Velocity Inputs, Result for the primary output.
Rerun with alternate assumptions before changing plans, staffing, or commitments.

Worked Example

Auto-generated from the tool's current default or entered inputs.

Example Inputs

Velocities: 28, 31, 26, 29, 30, 27
Sprints count: 6
Standard deviation: 1.8708286933869707
Coefficient of variation percent: 6.564311204866563
Stability index: 93.43568879513344
Stability band: high

Expected Outputs

Parsed velocities 0: 28
Parsed velocities 1: 31
Parsed velocities 2: 26
Parsed velocities 3: 29

Interpretation

Parsed velocities 0 is 28.0. Use this as a decision input, not as a standalone conclusion.
Parsed velocities 1 is 31.0. Use this as a decision input, not as a standalone conclusion.
Parsed velocities 2 is 26.0. Use this as a decision input, not as a standalone conclusion.
Cross-check the result against one alternate input set to validate sensitivity.

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Velocity Stability Index

Input Pattern

Velocity Inputs

Result

How to use this tool

Worked Example

Example Inputs

Expected Outputs

Interpretation

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