Work Tools

Case Backlog Calculator

Estimate ending case backlog from starting backlog, new cases received, and resolved cases.

Updated April 16, 2026
Free online tool
Planning and research use

Why this page exists

Service workload gets easier to track when starting backlog, incoming work, and resolved volume are rolled into one ending-backlog estimate instead of being reviewed as separate counts. This calculator helps teams estimate case backlog from starting backlog, new cases received, and resolved cases.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

Case backlog calculator

Estimate ending case backlog from starting backlog, new cases received, and resolved cases.

Result

65 cases

Estimated ending backlog based on starting backlog plus new cases received minus resolved cases.

Ending backlog65 cases

Starting backlog used120

New cases used85

Resolved cases used140

120 of starting backlog plus 85 new cases minus 140 resolved cases gives 65 in simple backlog math.
This helps show whether workload is building or shrinking across the period measured.
Use the result as a planning snapshot only, because reopen behavior, aging rules, and reporting cutoffs can still change the real backlog picture.

This is a simple workload estimate only. Real backlog movement can still depend on case aging rules, reopened work, and how the reporting window is defined.

Planning note

Last updated April 16, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter starting backlog, new cases received, and resolved cases.

The calculator adds new cases to the starting backlog and subtracts resolved cases.

It shows the estimated ending backlog along with the values used in the calculation.

Understanding your result

This is a simple workload-tracking measure. It helps show whether work is building up or being cleared down, but it does not explain case complexity, aging, or queue mix.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Check whether backlog is growing

A single ending-backlog estimate can make it easier to see if incoming work is outpacing resolution volume.

Compare one period against another

Using the same backlog math each period can show whether operations are stabilizing or falling behind.

Use it with service-capacity tools

Backlog often becomes more useful when reviewed beside closure-rate, throughput, and staffing metrics.

When to use it

Good times to run this calculator

Use this when you want a quick ending-backlog estimate for a service queue, support team, or operations period.

It is especially useful when you need to see whether intake and throughput are staying in balance.

Assumptions and limitations

The estimate assumes starting backlog, new cases, and resolved cases are all counted on the same reporting basis.

It does not show case age, priority mix, complexity, or whether some work items are much harder than others.

Common mistakes

Avoid the usual input mistakes

Comparing backlog changes without checking whether case definitions stayed consistent can make the trend misleading.

Treating a stable backlog as healthy without checking aging or reopen behavior can hide quality issues.

Practical tips

Review ending backlog alongside closure rate and average resolution time so you can see both workload and pace.

Track the calculation over a few periods in a row if you want to spot whether backlog pressure is becoming structural.

Worked example

Walk through a realistic scenario

A worked example shows how the estimate behaves when the inputs resemble a real planning decision.

Estimate ending backlog for one period

A team starts with 140 open cases, receives 95 new cases, and resolves 88.

1. Enter the starting backlog, new cases, and resolved cases.

2. Add new cases to the starting backlog.

3. Subtract resolved cases to estimate the ending backlog.

Takeaway: The result gives a simple workload snapshot that can show whether the team ended the period ahead or behind.

FAQ

Common questions

How is case backlog calculated here?

The calculator adds new cases to the starting backlog and subtracts resolved cases to estimate the ending backlog.

What if resolved cases exceed the work available?

The calculator still shows the simple math but treats the operational ending backlog as fully cleared rather than negative.

Why does backlog matter?

Because it gives a fast view of whether work is accumulating faster than the team is closing it.

Related tools

Keep comparing

Backlog-days, closure-rate, and resolution-time tools help explain whether the ending-backlog number reflects a capacity issue, a speed issue, or both.

Resolved-ticket-cost and reopen-rate tools can add quality and cost context when backlog is part of a broader service review.

Work ToolsUpdated April 12, 2026