Maintenance backlog calculator

Backlog shows whether the crew can keep up with demand. Add up the estimated hours of open work orders and compare them with weekly capacity.

Result

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Fill in the fields to see the result.

pending WO hours ÷ (technicians × productive hours per week)

Reference ranges are indicative and vary by industry, asset type and operating regime. Nothing you type leaves your browser.

Why measure backlog in weeks

Pending hours alone say nothing: 500 h is a lot for 2 technicians and little for 20. Dividing by weekly capacity turns the number into a lead time.

The 2 to 4 week range is the most widely cited: you can plan ahead without letting demand go stale.

Backlog (weeks) = estimated hours of pending work orders ÷ (number of technicians × productive hours per technician per week).

The most common benchmark is 2 to 4 weeks. Below that, demand may not be getting recorded; above it, the crew can't keep up.

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