OhMyCalc

WIP Inventory Calculator

Calculate Work-In-Progress inventory using Little's Law: WIP = Throughput × Cycle Time.

How to Use the WIP Inventory Calculator

  1. Enter production throughput per hour.
  2. Enter average cycle time in hours.
  3. Enter unit cost and click Calculate.

Casos de Uso

Fórmula

Formula: WIP = Throughput × Cycle Time (Little's Law). WIP Value = WIP Units × Unit Cost.

Preguntas Frecuentes

What is Little's Law?
Little's Law states that the average number of items in a system equals the average arrival rate multiplied by the average time spent in the system.
Why should WIP be minimized?
High WIP increases lead time, ties up capital, hides quality problems, and reduces process flexibility.
How can I reduce WIP?
Implement pull systems, reduce batch sizes, improve flow, and reduce changeover times to lower WIP levels.