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Cash Conversion Cycle: How Long Cash Is Tied Up in Operations

For educational purposes only; not investment advice.

The cash conversion cycle (CCC) estimates how many days cash is tied up between paying for inventory and collecting cash from customers, after considering how long the company can wait before paying suppliers.

Shorter is usually better, but context matters. A negative CCC can be excellent for a business that collects cash before paying suppliers, or risky if it depends on stretching payables unsustainably.

cash conversion cycle = DIO + DSO - DPO

Where:

  • DIO = average inventory / cost of goods sold × days
  • DSO = average accounts receivable / revenue × days
  • DPO = average accounts payable / cost of goods sold × days

DIO measures how long inventory sits before sale. DSO measures how long customers take to pay. DPO measures how long the company takes to pay suppliers.

A retailer has:

  • DIO: 60 days
  • DSO: 10 days
  • DPO: 45 days

CCC = 60 + 10 - 45 = 25 days

If inventory days rise to 100 while receivables and payables are unchanged:

CCC = 100 + 10 - 45 = 65 days

That means more cash is trapped in working capital. The cause could be planned inventory build, demand slowdown, supply-chain disruption, or obsolete goods. The number needs explanation.

  • Use average balances, not only period-end balances.
  • Match numerator and denominator periods.
  • Compare with the company’s own history and close peers.
  • Separate seasonal inventory builds from structural deterioration.
  • Check whether lower CCC comes from better operations or delayed supplier payments.
  • Read notes on receivables, inventory write-downs, supplier financing, and revenue recognition.
  • Watch cash conversion alongside gross margin and operating cash flow.

A lower CCC is not always healthier. Aggressively delaying suppliers can create operational risk.

A higher CCC is not always bad. Fast-growing companies may invest in inventory and receivables before revenue is collected.

CCC is not comparable across all industries. Grocery, software, aerospace, and industrial equipment have different working-capital structures.

One quarter is not enough. Seasonality can distort inventory, receivables, and payables.

  • SEC, “Beginners’ Guide to Financial Statements.”
  • SEC, “Investor Bulletin: How to Read a 10-K.”
  • FASB ASC Topic 230, “Statement of Cash Flows.”