Compare ideal sprint burndown with projected completion pace, remaining scope, and day-by-day variance across the sprint. Use it to test different inputs quickly, compare outcomes, and understand the main factors behind the result before moving on to related tools or deeper guidance.
Last updated
What this burndown planner does Compare ideal remaining work against projected remaining work across the sprint so you can see whether the current completion pace is on track.
Sprint status
Sprint is on track
At 10 points per day, the work would finish in 10 days.
Ideal rate
10 pts/day
Projected finish
Day 10
Remaining at sprint end
0 pts
Schedule variance
0 days
Burndown comparison sheet
Day
Ideal remaining
Projected remaining
Variance
0
100 pts
100 pts
0 pts
1
90 pts
90 pts
0 pts
2
80 pts
80 pts
0 pts
3
70 pts
70 pts
0 pts
4
60 pts
60 pts
0 pts
5
50 pts
50 pts
0 pts
6
40 pts
40 pts
0 pts
7
30 pts
30 pts
0 pts
8
20 pts
20 pts
0 pts
9
10 pts
10 pts
0 pts
10
0 pts
0 pts
0 pts
Catch-up note At the current pace, the planned work burns down to zero within the sprint window.
Burndown chart calculator: compare ideal sprint pace with projected completion
A burndown chart calculator turns sprint scope, sprint length, and current completion pace into a simple planning view: how fast work should burn down, how fast it is actually burning down, and whether the team is likely to finish inside the planned sprint window if the same pace continues.
What a burndown chart is really showing
A burndown chart compares the work that should remain on each day of a sprint with the work likely to remain if the current pace continues. The ideal line is simply the original scope divided evenly across the sprint, while the projected line reflects the completion rate you enter.
That comparison is useful because teams rarely need another raw velocity number. They need to know whether remaining work is shrinking fast enough to finish on time, whether the current plan is realistic, and how large the gap is between the plan and the current pace.
Further reading
Atlassian — Burndown chart — Agile reference explaining what sprint burndown charts are for and how teams use them in practice.
How to read ideal remaining versus projected remaining
If projected remaining work stays close to the ideal line, the sprint is broadly on track. If projected remaining work stays above the ideal line, the team is burning down more slowly than planned and may need to reduce scope, remove blockers, or increase throughput to finish on time.
The comparison sheet is especially helpful because it shows the variance day by day instead of only reporting one end-state number. A sprint can be behind early and recover later, or it can look comfortable early and then drift off plan as blockers or unplanned work appear.
Worked example: 100 story points across a 10-day sprint
Suppose the sprint starts with 100 story points across 10 sprint days. The ideal burndown rate is 10 points per day. If the team is actually completing 8 points per day, the projected completion time becomes 12.5 days and about 20 points remain at the end of day 10.
That result does not prove the sprint will fail. It shows that, under the current pace, the plan finishes late. The next practical question is whether the team can raise throughput, cut scope, or accept a later finish. That is exactly the kind of conversation a burndown chart should support.
Limits of a burndown chart calculator
This calculator assumes a steady completion pace, which is rarely how real sprint work behaves. Actual delivery often changes because of dependencies, review bottlenecks, production issues, interruptions, and scope changes. The result is therefore a planning baseline, not a forecast guarantee.
It also assumes that the work estimate itself is meaningful. If the story-point estimate is weak or the sprint backlog changes materially during the sprint, the projected completion day can become less useful. Recalculate whenever the scope or pace changes enough to change the decision.
Further reading
Asana — Burndown chart — Project-management guide on reading burndown charts and using them for sprint planning conversations.
Wikipedia — Burn down chart — General reference on burndown charts, sprint tracking, and agile reporting terminology.
Frequently asked questions
What is the difference between an ideal burndown line and the actual line?
The ideal line shows how much work would remain if progress were perfectly even across the sprint. The projected or actual line shows what remains at the completion pace you enter. The gap between them shows whether delivery is ahead of plan, roughly on plan, or behind plan.
Does a burndown chart guarantee that a sprint will finish on time?
No. It is a planning tool, not a guarantee. It assumes the current completion pace continues and that the total scope remains stable. Real sprint outcomes can still change if blockers appear, estimates change, or scope is added or removed.
Why can a sprint look behind early and still finish on time?
Because work is not always completed evenly. Teams may spend early days on setup, design, testing infrastructure, or dependency resolution, then complete a larger amount of work later. A single snapshot matters less than the ongoing trend and the team's ability to recover the gap.
Should I use burndown charts for projects outside Scrum?
You can, as long as the work can be expressed as a remaining backlog and a meaningful timebox. The concept works outside formal Scrum, but the estimate quality, update cadence, and interpretation still need to match the team's real delivery process.
