Toolkit ShelfUse this burndown chart calculator to check whether a sprint or fixed-scope delivery plan is ahead, on track, or at risk before changing scope or dates.
Live calculator
100 work units remain versus 88 on the ideal line.
Adjusted scope minus completed work.
20 units per elapsed day so far.
Use one fixed unit definition such as story points, hours, tasks, or tickets for the whole sprint snapshot.
| Burndown measure | Value |
|---|---|
| Adjusted scope | 220 |
| Completed work | 120 |
| Actual remaining work | 100 |
| Ideal remaining work today | 88 |
| Variance vs ideal | 12 |
| Current burn rate/day | 20 |
| Required burn rate/day | 25 |
| Remaining days | 4 |
Burndown is a progress signal, not an individual performance score. Scope changes, batch updates, blocked work, and estimate changes can move the line without proving the team is faster or slower.
Planning comparison only. Check estimates, omitted costs, timing, and constraints before making an operating decision.
Formula
Remaining work = adjusted scope - completed work; ideal remaining = adjusted scope x (1 - days elapsed / sprint days)Use one consistent work unit such as story points, hours, tasks, or tickets. Scope changes should be tracked separately from completed work.
How to use
Example
Calculator use
Before relying on it
Details
The ideal line is a simple reference path, not a guarantee or performance target by itself.
Positive variance means more work remains than the ideal line expects at this point.
Use burndown with blockers, scope changes, batch updates, and quality risk before compressing a schedule.
Benchmarks
The main status number for the current sprint snapshot.
A straight-line reference for reading whether the sprint is ahead or behind pace.
Useful for deciding whether scope, staffing, or date assumptions need a realistic adjustment.
Calculator accuracy
Remaining work = adjusted scope - completed work; ideal remaining = adjusted scope x (1 - days elapsed / sprint days)
Planned work, Scope added, Completed work, Sprint days, Days elapsed
Business results depend on contracts, accounting treatment, taxes, payment timing, refunds, collections, and operating assumptions.
Catalog QA baseline on June 6, 2026. This date marks the catalog-wide automated and editorial QA baseline, not a tool-specific expert review.
Toolkit Shelf. Burndown Chart Calculator. https://toolkitshelf.com/tools/burndown-chart-calculator
FAQ
No. It is a team progress signal for remaining work over time. It should not be used as an individual performance score.
Track scope added separately. Otherwise a rising remaining-work line can be mistaken for poor execution when the real cause is new work.
Late status updates, batch-closing tickets, blocked review work, and estimate changes can all distort the line. Use it with delivery context.
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