OEE calculator
Calculate OEE and separate availability, speed and first-pass quality losses for a production period.
Use nonnegative values with at most six decimal places and whole unit counts up to 1,000,000,000. Time inputs are converted to seconds, with a maximum of 1,000,000,000 seconds. Ratios are rounded to six decimal places; JSON and CSV preserve the calculated values and assumptions. Processing stays on your device. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use OEE calculator
- Enter planned and actual run time for the same production period. Select their time unit.
- Enter ideal cycle time in seconds, total units and first-pass good units.
- Calculate OEE and inspect the separate losses. Download the complete JSON or CSV report.
Useful next steps
Keep the three factors separate
Availability is run time divided by planned time. Performance is ideal cycle time multiplied by total units, divided by run time. Quality is first-pass good units divided by total units. Multiplying these factors gives OEE.
Check the input assumptions
Exclude scheduled nonproduction from planned time. Good units exclude rework. A stated ideal cycle cannot imply more ideal production time than the actual run time. With no production, undefined factors remain undefined instead of being shown as zero.