Sprint Velocity Calculator - Agile Scrum Planning Tool
Calculate your agile team sprint velocity, track story points completed per sprint, and forecast future sprint capacity for accurate project planning.
About this calculator
Enter committed and completed story points for recent sprints and get your average velocity, predictability and a forecast for the next sprint, adjusted for team size and leave days.
Velocity helps a Scrum team plan realistically.
How to use it
- Enter committed and completed points per sprint (add more sprints if you like).
- Enter team size, sprint length and leave days.
- Press Calculate Velocity & Forecast.
How velocity is used
Velocity = average story points completed per sprint (use the last 3 to 6 sprints). Predictability = completed ÷ committed. A forecast adjusts for capacity: capacity ratio = available person-days ÷ normal person-days. With 5 people, a 10-working-day sprint is 50 person-days; 2 leave days leaves 48, ratio 0.96. Velocity is a planning aid for one team, never a performance score or a way to compare teams.
Worked example
Completed points 25, 33, 34, 27
| Average velocity | (25 + 33 + 34 + 27) ÷ 4 = 29.75 |
| Forecast with ratio 0.96 | about 28.6 points |
Tips and common mistakes
- Use a rolling average of 3 to 6 sprints.
- Don't change story-point scales mid-stream.
- Don't compare velocities across teams.
- Count only done work.
- Reserve capacity for bugs and support.
Frequently asked questions
What is sprint velocity?
The story points a team completes per sprint.
How many sprints should I average?
The last 3 to 6.
Can I compare teams?
No, point scales differ.
Should I count partly done stories?
No.
What is predictability?
Completed divided by committed.
Is it free?
Yes.