OEE Calculator
Calculate Overall Equipment Effectiveness from your planned time, downtime, cycle time and piece counts — broken into Availability, Performance and Quality.
Your OEE
How to calculate OEE
Overall Equipment Effectiveness (OEE) is the single best gauge of how much productive capacity a machine or line is actually delivering. It's the product of three factors:
OEE = Availability × Performance × Quality- Availability = Run time ÷ Planned production time (run time = planned − downtime)
- Performance = (Ideal cycle time × Total count) ÷ Run time
- Quality = Good count ÷ Total count
What is a good OEE score?
100% is perfect — only good parts, as fast as possible, with no stops. 85% is world-class for discrete manufacturing, 60% is fairly typical, and 40% is common for plants that have just started measuring. Most factories find a lot of hidden capacity once they make their losses visible.
OEE is your capacity multiplier
OEE is exactly the efficiency factor that turns theoretical capacity into the output you actually ship. A line with a great theoretical rate but 55% OEE is leaving nearly half its capacity on the floor — usually concentrated at one or two stations. ManuMap models OEE-style losses across every machine in your line at once, so you can see where the lost capacity is and what recovering it is worth.
FAQ
How is OEE calculated?
OEE = Availability × Performance × Quality. Availability = run time ÷ planned time; Performance = (ideal cycle × total count) ÷ run time; Quality = good ÷ total.
What is a good OEE score?
85% is world-class for discrete manufacturing, 60% is typical, and 40% is common for plants new to measuring it.
Can Performance be over 100%?
Yes, if your "ideal" cycle time is set too slow. Recalibrate the ideal cycle time to the machine's true fastest sustainable rate.