FREE TOOL · NO SIGNUP

OEE CALCULATOR

OEE tells you how much real production you got out of the time you planned to run. This calculator gives you your score, breaks it into the three drivers, and tells you which one to fix first. Plug in your numbers, watch the result update live, then save the score and get a 90 day improvement roadmap.

OEE calculator inputs and result

INPUTS

Time the line was scheduled to run, breaks excluded

Breakdowns and changeovers. Breaks already excluded

Everything off the line, defects and rework included

Anything not first pass good. Rework counts

Fastest the machine can run per spec

YOUR OEE

63%

Run time 420 min · Availability × Performance × Quality

Availability

88%

Performance

75%

Quality

96%

WHERE YOU SIT

40% · TYPICAL60% · AVERAGE85% · WORLD CLASS

NEXT MOVE · PERFORMANCE IS LOWEST

Slow cycles and micro stops are bleeding production. Validate ideal cycle time at the line and check for short stoppages under five minutes.

BEFORE THE EMAIL · GENCHI GENBUTSU

The Toyota Way says: go and see before deciding. Walk this line right now with these four questions in your pocket:

  1. What stops the line? (availability)
  2. What slows it when it is running? (performance)
  3. Where do operators wait for the next part, signal, or instruction?
  4. What visual standard is missing or out of date at the workstation?

Twenty minutes of observation will tell you more than another month of dashboards. Bring back one concrete fix.

NEXT MOVE → PARETO CHART

At 63% OEE the next leverage point is the long tail. Sort your top reasons and find the vital few that account for 80% of the loss.

OPEN →
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WHAT YOUR ROADMAP WOULD CONTAIN

Three of the first ten actions a Sharpen roadmap would put in front of you, sequenced for plants with the result you just calculated.

  • P5

    Standard Work + SMED on the changeover-heaviest line

    Above 60%, changeover loss is usually the biggest remaining lever.

  • P6

    Poka-yoke on the top recurring defect mode

    Quality drag in the 80%+ tier is almost always defect-driven, not speed-driven.

  • P8

    Kaizen pipeline with sustain checks

    Without sustain, gains erode. The platform tracks them 30/60/90.

Your full roadmap is ten actions across three phases, every action mapped to a guide and a template. Sequenced by ceiling rule + dollar impact + dependency.

IF THIS LIVED IN THE PLATFORM

A snapshot of what this same data looks like as a live tracker, not a one-shot calculator.

OEE · 7-DAY AVERAGE

63%

Availability × Performance × Quality

OEE TRACKER

  • ·Daily entry per line, takes 30 seconds
  • ·7-day, 30-day, 12-month trend
  • ·Component breakdown: A/P/Q per line
  • ·Auto-pulled into the daily Production Board
SEE MORE OF THE PLATFORM →

NEXT STEP

Your OEE is 63%. 85% is reachable with rigor.

Above 60% is a different game: standard work, SMED, poka-yoke. The roadmap shows the next three moves.

Takes you to a 10-minute diagnostic that generates your roadmap. We'll email a copy. No spam.

OTHER FREE TOOLS

DOWNTIME COST

Annual cost of unplanned stops

SCRAP COST

Annual scrap plus savings vs world class

TAKT TIME

Required takt vs actual cycle

5S AUDIT

25 questions, radar chart, action plan

SEE ALL TOOLS →

FAQ

QUESTIONS PLANT MANAGERS ASK

SHOULD BREAKS COUNT AS DOWNTIME?

No. Subtract scheduled breaks from your planned production time before you put anything in the calculator. Stop time should only include unplanned events: breakdowns, changeovers, material shortages, waiting on operators or supervisors. Counting breaks as downtime makes Availability look artificially low and hides the real losses.

WHAT COUNTS AS A REJECT IF I CAN REWORK IT?

A rework still counts as a reject. OEE measures first-pass quality. If it took an extra step beyond the standard cycle to make the part good, it is a quality loss, even if it eventually ships. The exception is if you have already counted the rework time inside Stop time, in which case it would double-count.

WHERE DO I FIND IDEAL CYCLE TIME?

The machine spec sheet or OEM documentation. If you cannot find it there, time the actual best-case cycle on the floor with no operator interruption, no quality issues, no setup events. Use that as your standard. Do not use the average; that hides Performance loss.

WHAT IS A GOOD OEE SCORE?

For a small or mid-size manufacturer, 40 percent is typical of a plant that does not actively manage equipment. 60 percent is average once basic tracking is in place. 85 percent is world class and is rare outside high-volume, high-discipline operations. Most plants we work with land between 50 and 65 percent on the constraint machine.

HOW DO I IMPROVE THE LOWEST COMPONENT?

If Availability is the lowest, run a Pareto on your downtime reason codes and attack the top one. If Performance is lowest, validate the ideal cycle time and look for short stoppages. If Quality is lowest, run a Pareto on reject reasons and a 5 Why on the top defect. Full walkthrough on the blog.

BUILT BY OPERATORS, NOT CONSULTANTS

The Sharpen platform covers the full operating system that makes a number like OEE move. The free 10-minute diagnostic scores your plant across all 10 pillars and produces a prioritized roadmap.
THE METHODOLOGYBUILD MY ROADMAP →ALL FREE TOOLS