What is the cash conversion cycle?

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The cash conversion cycle (CCC) is a metric that measures how many days it takes a business to convert its operational investments — inventory purchases, goods produced, services delivered — into cash collected from customers. It is calculated as:

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CCC = DSO + DIO − DPO

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Where DSO is Days Sales Outstanding (how long to collect from customers), DIO is Days Inventory Outstanding (how long inventory sits before being sold), and DPO is Days Payable Outstanding (how long the business takes to pay its suppliers).

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Why it matters

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A shorter CCC means cash is cycling through the business faster — less working capital is tied up in operations at any given time. A longer CCC means the business needs more cash to sustain the same level of activity.

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For CFOs and treasury teams, the CCC is one of the clearest indicators of operational efficiency. A business with excellent products but a broken order-to-cash process can have a CCC that is 30–40 days longer than a competitor simply because invoices go out late, disputes aren't resolved quickly, or collections follow-up is inconsistent.

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Levers to improve CCC

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Reducing DSO — by invoicing faster, automating collections, and resolving disputes earlier — directly shortens the cycle. Optimising DPO — by negotiating better payment terms with suppliers while maintaining those relationships — also helps. Finance automation platforms that connect O2C and P2P data make it possible to monitor and act on CCC in real time.

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Related: Days Sales Outstanding (DSO) · Days Payable Outstanding (DPO) · Working Capital Management · Order-to-Cash (O2C)