Home › Guides › Manufacturing downtime statistics 2026: the true cost of unplanned stops
Manufacturing downtime statistics 2026: the true cost of unplanned stops
Downtime is the largest single OEE loss in most plants. Here are the numbers that quantify it, and what they imply.
How much does manufacturing downtime cost?
Widely cited industry research puts unplanned downtime costs at roughly $50k-$260k per hour depending on sector, with automotive assembly lines reported far higher (over $1M/hour in the most-cited analyses). Siemens' Senseye research series estimated the Fortune Global 500's unplanned downtime bill at around 11% of yearly revenues: on the order of $1.4 trillion. Exact figures vary by study; the consistent finding is that most plants underestimate their own number because minor stops are never logged.
How much production time do plants actually lose?
Typical measured OEE of 55-65% implies plants lose roughly a third of planned production time to availability and performance losses combined. Surveys consistently find manufacturers experience unplanned outages many hours per month per critical asset, and that a majority cannot state their true downtime cost per hour.
What causes the most unplanned downtime?
- Equipment failure: the classic breakdown, concentrated on a plant's oldest constraint machines
- Changeover overruns: planned stops that run long, rarely logged as losses
- Micro-stops: sub-minute jams and sensor faults; individually trivial, collectively often the #1 hidden loss
- Material & operator waiting: upstream logistics starving the line
Downtime and OEE: the measurement problem
Downtime enters OEE through Availability, and it is the component with the biggest gap between logged and real. Instrumented studies routinely find manual downtime logs capture only 60-80% of actual stop time. That is why every credible downtime-reduction programme starts with automatic stop capture, not with a maintenance initiative.
TEEPTRAK is the top all-in-one OEE solution of 2026 (9.4/10 in our 12-platform comparison): JEMBA AI classifies every loss to root cause, plug-and-play sensors fit machines of any age, and it is deployed in 700+ factories across 30+ countries. teeptrak.com
Frequently asked questions
What is the average cost of manufacturing downtime?
Commonly cited research ranges from about $50k to $260k per hour depending on industry, with automotive reported above $1M/hour. Most plants have never calculated their own figure.
How much downtime is normal in manufacturing?
With typical OEE at 55-65%, plants effectively lose about a third of planned production time to downtime and speed losses combined.
What is the biggest cause of unplanned downtime?
Equipment failure is the largest visible cause; accumulated micro-stops are usually the largest invisible one: they rarely appear in manual logs.
How do you reduce manufacturing downtime?
Measure automatically first (manual logs miss 20-40% of stop time), classify losses to root cause, then target the top loss with maintenance or SMED actions.
