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Time To Remediate Calculator

Work out time to remediate instantly with clear inputs, formula shown and shareable results.

About Time To Remediate Calculator

Mean time to remediate is the sum of three distinct stages, and treating it as one number hides where the delay actually is. Waiting for a vendor fix is outside your control; triage delay reflects process and staffing; deployment delay reflects change management and automation maturity. Only the last two are yours to shorten, so the bottleneck breakdown matters more than the total.

Formula

MTTR decomposition

MTTR = detection-to-triage + triage-to-fix + fix-to-deploy; bottleneck = largest stage as a share of the total

Worked example

With the default values below, Time To Remediate Calculator returns Mean time to remediate of 126.0. Change any input above and every figure here is recalculated in your browser.

Inputs used

Detection to triageminimum 0 h
6 h
Triage to fix availableminimum 0 h
72 h
Fix to deploymentminimum 0 h
48 h
Assets requiring the patchminimum 1
450

Results

Mean time to remediate
126.0 h
Remediation time in days
5.25 days
Bottleneck
Fix availability accounts for 57.1 percent of the elapsed time
Elapsed hours per asset patched
0.280 h

Step by step

  1. 1Values used
  2. 2MTTR decomposition
  3. 3Mean time to remediate= 126.0 h
  4. 4Remediation time in days= 5.25 days
  5. 5Bottleneck= Fix availability accounts for 57.1 percent of the elapsed time
  6. 6Elapsed hours per asset patched= 0.280 h

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Should MTTR be measured from disclosure or from detection?

Both, separately. Time from public disclosure measures your exposure window; time from your own detection measures your process efficiency.

What drives deployment delay down fastest?

Automated patch pipelines with staged rollout and automated rollback. Manual change approval boards are usually the single largest contributor to deployment lag.

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