🛠️ Maintenance

MTBF & MTTR Calculator

Calculate your machine's reliability (MTBF), repair time (MTTR) and overall availability percentage.

e.g. 720 hrs = 1 month of single-shift operation
Sum of all repair times
📊 Reliability Results
MTBF (Mean Time Between Failures)
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MTTR (Mean Time To Repair)
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Machine Availability
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Failure Rate
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How This Calculator Works

MTBF = (Total Time − Downtime) ÷ Number of Failures MTTR = Total Downtime ÷ Number of Failures Availability = MTBF ÷ (MTBF + MTTR) × 100%

Higher MTBF = more reliable machine
Lower MTTR = faster repairs
World-class plants target >95% machine availability.

🔗 Related Calculators

📉 Downtime Production Loss 📊 OEE Calculator 📈 Capacity Utilization

Improving MTBF and MTTR

To improve MTBF (reduce breakdowns): Implement preventive maintenance (PM) schedules, operator-based lubrication and cleaning, condition monitoring, and root cause analysis of each breakdown to prevent recurrence.

To reduce MTTR (faster repairs): Keep spare parts stock for critical components, train maintenance teams on key machines, create visual troubleshooting guides, and implement fast-response repair protocols.

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