Free tools
Maintenance KPI calculators
Calculate MTBF, MTTR, availability, OEE and the other numbers that show whether maintenance is getting better. Free, no sign-up, right in your browser.
MTBF
Mean time between failures: how long the asset runs before it breaks.
(period hours − downtime hours) ÷ no. of failuresMTTR
Mean time to repair: how long it takes to get the asset running again.
total repair time ÷ no. of repairsAvailability
Percentage of time the asset was ready to operate.
MTBF ÷ (MTBF + MTTR)OEE
Overall effectiveness: availability × performance × quality.
availability × performance × qualityBacklog
How many weeks of work the crew has piled up.
pending WO hours ÷ (technicians × productive hours per week)Planned vs. corrective
How much of the work is planned and how much is firefighting.
(preventive + predictive) ÷ total hours% Sick units
Share of the fleet with recurring failures: 3 or more failures in 30 days.
units with recurring failures ÷ total unitsCost vs. replacement value
Annual maintenance cost over the replacement value of the assets.
annual maintenance cost ÷ replacement asset valueWant these numbers without a spreadsheet?
In taskfield, the KPIs come from work orders closed in the field, by asset, location and crew.
Notify meGet notified at launch
Leave your email and tell us about your operation. A person will reply, not a bot.
