Maintenance indicators: Eight KPI's to follow
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Maintenance indicators: Eight KPI's to follow

Abraão Almeida
Abraão Almeida

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If you want to know if your equipment and installations are prepared for what future holds, certainly maintenance indicators should be your main allies.

They are fundamental in the process of monitoring and increasing productivity, as well as guiding the planning and assertive decision-making.

From the monitoring of maintenance indicators, it is possible to analyze aspects such as the work routine, internal processes and equipment.

We can say that the company as a whole benefits from the strategic use of these indicators, since it can promote cost reduction and greater competitiveness, just to mention some of its main benefits.

Therefore, the quality management of your system must rely on maintenance indicators, as they provide essential information for the satisfactory functioning of activities.

In summary, the maintenance indicators are for you to make sure that your machines and equipment are in the best possible condition.

Along with other performance indicators, maintenance indicators must be part of your strategic management.

Importance of maintenance indicators

The maintenance indicators are part of the KPIs (Key Performance Indicators)

This means that they are part of a strategy that aims to analyze a company's performance in various aspects.

In the specific case of maintenance indicators, the aspect to be analyzed is the conditions of equipment, facilities and machines.

As companies depend on these items to develop their activities, especially with digital transformation and business automation, it is impossible to ignore maintenance indicators.

By making sure that your machines and computers are working satisfactorily, you can avoid interruptions due to technical failures.

These sporadic interruptions may seem unavoidable and even harmless, but they represent significant losses as the problem may take time to be resolved.

It always better not only avoid technical failures, but also improve your processes so that your company remains competitive in the market.

The search for constant improvement of internal processes is called benchmarking and it is carried out through internal and external comparisons with the help of maintenance indicators.

Keeping this goal of improvement and knowledge about the market, the company is better prepared for possible changes.

There are several maintenance indicators. But, calm down, you don't have to use them all. Just select the ones that are most specifically relevant to your business. This selection must be made based on the segment that best fits your company.

The main maintenance indicators

In the following topics, we will list some of the most popular and used maintenance indicators so that you can identify the most interesting for your business and calculate the best indicators immediately.


MTBF, whose acronym stands for Mean Time Between Failures, serves to calculate the rate of unforeseen failures.

Also called reliability indicator, it is a time-based metric that considers the period between one failure and the next.

Therefore, your goal should be to increase the MTBF, because the higher it is, the longer the mean time between failures. This means that the number of failures will be less.

To calculate the MTBF, simply subtract the Lost Time from the Total Available Time and divide the result by the Number of Stops.



The acronym MTTR stands for Mean Time to Repair and is used to calculate the time your company takes to repair equipment that has malfunctions.

In other words, MTTR calculates the average time that equipment was down due to failures.

Unlike with MTBF, you should aim for a low MTTR, because if it's high, it means your company is taking a long time to fix things.

The MTTR is calculated by dividing the total time taken to make repairs in a given period by the number of failures presented in the same period.



This indicator, which means availability, analyzes the time in which the equipment is operating according to plan.

Therefore, the greater the result of your calculation, the better it will be for your business, as this will mean that the machine offers high availability.

Availability is calculated by dividing the MTBF by the sum of MTBF and MTTR and multiplying the result by 100.

A/100 = MTBF / MTBF + MTTR


The backlog is the maintenance indicator that represents the maintenance delay and measures the accumulation of pending activities for each employee.

That is, through it you calculate the time required for the maintenance team to complete all pending activities.

All activities carried out by this sector must be taken into account: preventive, predictive, corrective maintenance, adaptations, inspections, installations, among others.

The calculation, in this case, is a little more complex and is done by the sum of the man-hour values ​​based on the planned, executed, pending and scheduled work orders.

The main advantage of Backlog is being able to learn more about your team's productivity.


The CMF refers to the maintenance/billing cost and serves to measure the effectiveness of the sector's financial management.

The calculation is given by dividing the total annual maintenance cost by the company's gross sales for the same period and multiplying the result by 100.


The acronym ERV stands for Estimated Replace Value.

This indicator is based on the relationship between the total expenses with the maintenance of equipment over a year and the amount needed to purchase new equipment.

The calculation is done by dividing these two values ​​and multiplying the result by 100.

If the result is greater than 2.5%, it means that the most advantageous path is to replace the equipment.


The MPd refers to predictive maintenance and serves to indicate the fulfillment of the maintenance program tasks and its percentage of success.

The calculation can be done by dividing the number of tasks in the plan by the number of actions that were scheduled and multiplying the result by 100.


The MP refers to preventive maintenance and, like the MPd, serves to assess compliance with the strategic action plan.

Using it, you can find out if the prevention proposals are working in practice.

To calculate the MP, simply divide the preventive maintenance tasks by the number of scheduled actions and multiply the result by 100.

Now that you know the main maintenance indicators, you should understand the importance of planning to get the best possible performance from your equipment. A preventive maintenance plan can be your first step. Click here to learn more about it.

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