Cash conversion cycle and supporting figures
DIO measures inventory holding time, DSO collection time, and DPO the payment delay to suppliers. The calculator accepts already-computed day measures from the same reporting basis.
To examine inventory movement when preparing DIO inputs, the Inventory Turnover Calculator uses inventory and cost-of-goods amounts.
The formula
DIO measures inventory holding time, DSO collection time, and DPO the payment delay to suppliers. The calculator accepts already-computed day measures from the same reporting basis.
Worked cash conversion cycle example
Inventory outstanding for 45 days plus 30 days to collect receivables gives a 75-day operating cycle. Subtracting 40 payable days leaves a 35-day cash conversion cycle.
How to use this calculator
- Enter days inventory outstanding (dio), days sales outstanding (dso).
- Set days payable outstanding (dpo) using the stated units or choices.
- Calculate and compare cash conversion cycle, inventory and receivable operating cycle, supplier-funded days.
Choosing inputs for cash conversion cycle
The operating cycle follows inventory through sale and customer collection. Supplier credit can fund part of that interval, so payable days are subtracted to estimate how long the business’s own cash is committed. Input each measure in days rather than entering inventory turnover or a receivables balance directly.
Use compatible reporting periods and day conventions when deriving the three measures. For example, annual sales paired with a quarterly average receivable balance would change the meaning of DSO. Seasonal businesses may need averages across more observations than opening and closing balances.
Interpreting cash conversion cycle
A negative cash conversion cycle is possible when supplier payment is delayed beyond inventory sale and customer collection. The tool preserves that signed result. It does not mean every invoice is financed safely or that paying suppliers later is always beneficial; discounts, contract terms, stock availability, and customer payment risk require separate assessment.
Assumptions & limitations
What this calculation assumes
- Entered day measures use the same accounting period and compatible conventions.
- Day values represent nonnegative durations and can be fractional averages.
What to keep in mind
- The tool does not derive day measures from financial statements or model individual invoice dates, supplier penalties, and cash balances.
Common questions
Can the cycle be negative?
Yes. If payable days exceed inventory plus receivable days, the result is negative and is shown without clamping.
Do I enter inventory turnover?
No. Enter days inventory outstanding. Convert a consistent turnover ratio to days before using this tool.
What is the operating cycle output?
It is inventory days plus receivable days, before subtracting the supplier payment delay.
Sources & further reading
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