OEE Calculator & Six Big Losses Template
Availability, performance, quality and OEE per shift and machine, with the six big losses split out and an 85% world-class benchmark RAG.
OEE Calculator & Six Big Losses Template is a free Excel workbook: 4 sheets, 295 live formulas and realistic sample data throughout, 17 KB as .xlsx.
The formulas are printed on this page, unedited, so you can check the method before downloading anything. Swap in your own numbers and the whole file recalculates — which is the part no chat window can hand you. Opens in Excel, Google Sheets, Numbers and LibreOffice; no add-in and no macro.
A look inside
This is a real slice of the Shifts sheet from the actual file — not a screenshot, and not a mock-up. Cells shown in violet are live formulas, exactly as they arrive.
| # | Date | Downtime (min) | Ideal cycle (s) | Total count | Rejects | Run time (min) | Availability |
|---|---|---|---|---|---|---|---|
| 2 | 2026-09-07 00:00:00 | 16 | 12 | 1,896 | 68 | =D2-E2 | =IF(D2>0,I2/D2,0) |
| 3 | 2026-09-07 00:00:00 | 33 | 12 | 1,911 | 25 | =D3-E3 | =IF(D3>0,I3/D3,0) |
| 4 | 2026-09-07 00:00:00 | 29 | 4 | 5,601 | 192 | =D4-E4 | =IF(D4>0,I4/D4,0) |
| 5 | 2026-09-07 00:00:00 | 32 | 4 | 5,075 | 179 | =D5-E5 | =IF(D5>0,I5/D5,0) |
| 6 | 2026-09-07 00:00:00 | 22 | 20 | 1,036 | 28 | =D6-E6 | =IF(D6>0,I6/D6,0) |
| 7 | 2026-09-07 00:00:00 | 72 | 12 | 1,540 | 23 | =D7-E7 | =IF(D7>0,I7/D7,0) |
| 8 | 2026-09-07 00:00:00 | 90 | 12 | 1,317 | 11 | =D8-E8 | =IF(D8>0,I8/D8,0) |
| 9 | 2026-09-07 00:00:00 | 66 | 4 | 4,504 | 70 | =D9-E9 | =IF(D9>0,I9/D9,0) |
What’s in the file
What it explains
- OEE is three ratios multiplied, not averaged
- Ideal cycle time is the number people fudge
- Why the losses sheet exists
Download it
The workbook is free with a DataHub Pro account. Free accounts download three templates and keep them forever — re-downloading one you already have never counts again. Pro accounts get all 201.
Related templates
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<a href="https://www.datahubpro.co.uk/excel-templates/manufacturing-oee">OEE Calculator & Six Big Losses Template</a> — free Excel template from DataHub Pro
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