# How Do You Measure Downtime?

## What is the formula of OEE?

The OEE formula is calculated by multiplying availability, performance and quality and is represented by a percentage.

Finding the OEE of an asset starts with measuring availability, which is calculated by dividing the total run time of an asset by the total planned production time of an asset..

## What is average production downtime?

A common estimate is that factories lose anywhere from 5% to 20% of their productivity due to downtime. (source) … Manufacturers experience an average of 800 hours of downtime every year. (We don’t have a primary source for this, but it’s a frequently cited number in the literature.)

## What is downtime and uptime?

Uptime is a computer industry term for the time during which a computer is operational. Downtime is the time when it isn’t operational. … For example, one standard for uptime that is sometimes discussed is a goal called five 9s – that is, a computer that is operational 99.999 percent of the time.

## How do you calculate hours and minutes for payroll?

You do this by dividing the minutes worked by 60. You then have the hours and minutes in numerical form, which you can multiply by the wage rate. For example, if your employee works 38 hours and 27 minutes this week, you divide 27 by 60.

## How do you calculate downtime?

For instance, if you want to calculate downtime losses for the month of May and you were operating for 20 days in May for eight hours per day, multiply 20 by 8 to get 160. Subtract the actual operating time for this period from the planned operating time to get the total amount of downtime.

## How do you calculate equipment downtime?

Downtime is any time the equipment is not available for production, including planned and unplanned downtime. To calculate system availability for a certain period of time, divide an asset’s total amount of uptime by the sum of total uptime and total downtime.

## How do you measure availability?

Calculating system availability System availability is calculated by dividing uptime by the total sum of uptime and downtime. For example, let’s say you’re trying to calculate the availability of a critical production asset. That asset ran for 200 hours in a single month.

## What is ideal cycle time in OEE?

Performance = Ideal Cycle Time / (Operating Time / Total Pieces) Ideal Cycle Time is the minimum cycle time that your process can be expected to achieve in optimal circumstances. It is sometimes called Design Cycle Time, Theoretical Cycle Time or Nameplate Capacity.

## How can I calculate average?

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

## What is OEE and TPM?

OEE = Availability% x Performance% x Quality% OEE (Overall Equipment effectiveness) is the main performance measure that drives action within Total Productive Maintenance (TPM) and is used by the teams to focus their continuous improvement activities as well as identifying those areas that require resource.

## How can calculate percentage?

1. How to calculate percentage of a number. Use the percentage formula: P% * X = YConvert the problem to an equation using the percentage formula: P% * X = Y.P is 10%, X is 150, so the equation is 10% * 150 = Y.Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.More items…

## How much downtime is 99.5 Availability?

Percentage calculationAvailability %Downtime per yearDowntime per month99% (“two nines”)3.65 days7.31 hours99.5% (“two and a half nines”)1.83 days3.65 hours99.8%17.53 hours87.66 minutes99.9% (“three nines”)8.77 hours43.83 minutes12 more rows

## How do I sum time duration in Excel?

In cell B4, enter =B2+B3 and then press Enter. The result is 16:15—16 hours and 15 minutes—for the completion the two tasks. Tip: You can also add up times by using the AutoSum function to sum numbers. Select cell B4, and then on the Home tab, choose AutoSum.

## How do you calculate downtime percentage?

ExampleTotal number of seconds your website was down: 600 seconds.Total number of seconds your website was monitored: 86,400. We divide 600 by 86,400, which is 0.0069. In percentages, this is 0.69%.This is the downtime percentage.The uptime percentage for this website would be: 100% minus 0.69% is 99.31%.