Issue Resolution Time Calculator

Calculator Inputs

Enter issue durations as comma-separated or line-separated values. The calculator converts minutes or workdays into hours automatically.

Issue resolution durations

Severity points list (optional)

Input unit

Working hours per day

SLA target per issue (hours)

Reopened issues count

Extra reopen hours

Blocked wait hours

Sprint length (days)

Team members

Engineering hourly cost

Subtract blocked wait hours from the adjusted total time

Example data table

Issue ID	Priority	Resolution hours	SLA target	Reopened	Status
BUG-104	Critical	12	24	No	Met
OPS-221	High	18	24	Yes	Met
API-019	Critical	30	24	No	Breached
UI-311	Medium	9	24	No	Met
SEC-088	High	22	24	No	Met
DATA-55	Medium	15	24	No	Met

Formula used

This calculator combines raw issue durations with reopen effort and optional blocked-time deductions. It then evaluates SLA performance, workload pressure, and cost exposure.

Converted Hours = Entered Value × Unit Factor

Adjusted Total Hours = Sum of Converted Hours + Reopen Extra Hours − Blocked Hours Deducted

Average Resolution Time = Adjusted Total Hours ÷ Number of Issues

Average Business Days = Average Resolution Time ÷ Working Hours Per Day

SLA Met % = (Issues Within SLA ÷ Total Issues) × 100

Reopen Rate % = (Reopened Issues ÷ Total Issues) × 100

Sprint Load % = Adjusted Total Hours ÷ (Team Members × Working Hours Per Day × Sprint Days) × 100

Estimated Labor Cost = Adjusted Total Hours × Engineering Hourly Cost

Severity Weighted Average = Sum(Resolution Hours × Severity Points) ÷ Sum(Severity Points)

How to use this calculator

Paste each issue duration using commas or separate lines.
Select whether your durations are in minutes, hours, or workdays.
Enter working hours per day so business-day conversions stay realistic.
Set the SLA target per issue in hours.
Add reopened issue count and reopen effort if repeat work occurred.
Enter blocked wait hours and choose whether to subtract them.
Define sprint length, team size, and hourly cost for planning metrics.
Optionally add severity points to calculate weighted resolution time.
Press the calculate button to view results above the form.
Use the export buttons to save report data as CSV or PDF.

Frequently asked questions

1. What does this calculator measure?

It measures how long issues take to resolve and summarizes workload quality using averages, percentiles, SLA performance, reopen impact, and cost-based planning metrics.

2. Should I enter calendar days or business days?

Enter business days when your team tracks effort in workdays. The calculator converts them into hours using your working-hours-per-day setting.

3. Why is the median useful?

Median shows the middle issue duration, so one extreme outage does not distort the result as much as the average.

4. What is the benefit of the P90 value?

P90 estimates a high-end resolution threshold. It helps teams understand tail latency and identify whether a small group of tickets is causing major delay.

5. When should blocked hours be excluded?

Exclude blocked hours when you want a controllable team-effort metric. Keep them included when measuring end-to-end customer waiting time.

6. What do severity points change?

Severity points create a weighted average. Higher-severity issues influence the final result more strongly than minor tickets.

7. Can I use this for sprint planning?

Yes. Sprint load, throughput per day, and capacity days needed help estimate whether upcoming issue volume fits available team bandwidth.

8. Why include hourly engineering cost?

Hourly cost turns time into money. That helps compare process fixes, staffing changes, and automation efforts against direct support effort.