Production calculator
Downtime Cost Calculator
Turn lost production time into missed contribution, standing labor, and total downtime cost.
What this calculator does
- Quantify contribution margin and labor impact from unplanned downtime.
- Use when prioritizing maintenance, reliability, and bottleneck improvement work.
- Quantifies lost contribution and standing labor cost from downtime on a production line, conveyor, or bottleneck asset.
Formula used
- Lost units = downtime hours × output rate
- Lost contribution = lost units × contribution per unit
- Standing labor = downtime hours × standing labor cost
- Downtime cost = lost contribution + standing labor
Inputs explained
- Downtime: undefined
- Output rate: undefined
- Contribution per unit: undefined
- Standing labor cost: undefined
How to use the result
- Use it to prioritize recurring stops, spare parts, maintenance work, and reliability projects by financial impact.
- It excludes longer schedule ripple, missed shipments, premium freight, and customer penalties unless those are added separately.
Common questions
- What is the Downtime Cost calculator for? It turns downtime hours, output rate, contribution per unit, and standing labor into a dollar estimate for a line stoppage.
- What information do I need before using it? Enter downtime hours, normal output rate, contribution per unit, and the labor cost that continues while the line is stopped.
- How can I use downtime cost? Use the cost to rank reliability problems, justify maintenance work, stock critical spares, or compare downtime reduction projects.
- When is the result only an estimate? It is only an estimate when output rate or contribution changes by SKU, operators are reassigned during stops, or downstream recovery changes the true lost volume.
Last reviewed 2026-05-12.