The formulas
- DSO = average AR / revenue x days
- DIO = average inventory / COGS x days
- DPO = average AP / COGS x days
- Cash conversion cycle = DSO + DIO - DPO
How it works
The cash conversion cycle measures how many days the business funds its operations. It adds the days to sell inventory and collect receivables, then subtracts the days it takes to pay suppliers.
Auditors use it as an analytical tool: a lengthening DSO can point to slow collection or premature revenue, a lengthening DIO to obsolete stock, and a lengthening DPO to cash stress. Use average balances when you have them, and compare to prior periods and peers.
Illustrative figures only. Check the result against your firm's methodology before relying on it.
Common questions
Can the cycle be negative?
Yes. Businesses that collect before they pay suppliers can have a negative cycle.
Should DSO use credit sales?
Credit sales are better when cash sales are material. Enter that figure as revenue.
Why average balances?
Year-end balances can be distorted by seasonality.
Formulas on this page are the standard definitions.
Runs in your browser. The figures you type are not sent to CORAA or stored. Check the result against your firm's methodology before relying on it.