System Availability from MTBF and MTTR Calculator

Calculate system availability percentage from MTBF and MTTR. Availability = MTBF / (MTBF + MTTR). Convert to annual downtime minutes.

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LTV:CAC Ratio

ARPU ($/month)
Monthly Churn %
CAC ($)
Gross Margin %
LTV
$3500
LTV:CAC
11.67
Payback
2.9 mo
Health
Healthy ✓
Benchmark: LTV:CAC ≥ 3 is healthy. Payback under 12 months is excellent. Under 1 means you lose money on each customer.
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How It Works

Calculate system availability percentage from MTBF and MTTR. Availability = MTBF / (MTBF + MTTR). Convert to annual downtime minutes

Each component has a specific meaning:

  • MTBF — The mtbf recorded for the scenario being assessed.
  • MTTR — The mttr recorded for the scenario being assessed.

Note: Interpret the availability calculator result against the thresholds and context described above.

How to Use

Enter the MTBF, MTTR for the scenario you are assessing. Calculate system availability percentage from MTBF and MTTR. Availability = MTBF / (MTBF + MTTR). Convert to annual downtime minutes. Use the availability calculator result to inform your calculation.

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Frequently Asked Questions