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

Understand the cash conversion cycle formula, how DIO, DSO, and DPO connect inventory, receivables, payables, and working-capital pressure.

Canonical: https://wiki.fcontext.com/stocks/cash-conversion-cycle/
Fact checked: 2026-07-14

> For educational purposes only; not investment advice.

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## Direct answer

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.

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    <img src="/images/topics/en/cash-conversion-cycle-timeline-light.svg" alt="Cash conversion cycle timeline showing inventory purchase sale customer collection and supplier payment" width="1200" height="680" loading="lazy" decoding="async" />
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    <img src="/images/topics/en/cash-conversion-cycle-timeline-dark.svg" alt="Cash conversion cycle timeline showing inventory purchase sale customer collection and supplier payment" width="1200" height="680" loading="lazy" decoding="async" />
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  <figcaption>CCC measures operating timing, not cash quality by itself. Business model, seasonality, growth, and classification affect interpretation.</figcaption>
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## Formula

`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.

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## Worked example

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.

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## Practical checks

- 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.

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## Common misconceptions

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.

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## Related topics

- [Accounts Receivable](/stocks/accounts-receivable/)
- [Cash Flow Statement](/stocks/cash-flow-statement/)
- [Current Ratio](/stocks/current-ratio/)

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## Sources

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