A profitable business can still experience cash pressure. Sales, purchases and payments do not occur at the same time, and part of the company’s money may remain tied up in inventory or customer receivables before returning as available cash.
Three indicators help describe this operating cycle: working capital requirements, inventory turnover and the cash conversion cycle.
Working capital looks at short-term operating balances
Working capital measures depend on the accounting definition used, but the underlying question is how short-term operating assets and liabilities interact.
The working capital calculator helps structure the values used in the calculation.
Receivables consume cash while the company waits for customers to pay. Inventory also ties up funds until goods are sold. Supplier payment terms can partially offset those needs by delaying cash outflows.
A single balance-sheet value, however, does not show how quickly these elements move.
Inventory turnover measures movement
The inventory turnover calculator relates the cost of goods sold to average inventory.
A higher turnover generally means inventory cycles through the business more frequently, but interpretation depends heavily on the sector, seasonality, supply constraints and service level. Extremely low inventory can create stockouts just as excessive inventory can immobilize cash.
Turnover should therefore be compared with relevant periods and operational targets rather than treated as a universal score.
The cash conversion cycle adds time
The cash conversion cycle calculator expresses the operating cycle in days by combining three timing measures:
Cash conversion cycle = inventory days + receivable days − payable days
The indicator estimates how long cash remains committed to the operating cycle before returning through customer payments, after taking supplier terms into account.
A shorter cycle can reduce financing needs, but the components matter. Extending supplier payments aggressively is not equivalent to improving inventory management or collecting invoices more efficiently.
Read the three indicators together
Suppose inventory days increase while customer and supplier payment terms remain stable. More cash may remain tied up in stock, increasing the cash conversion cycle.
If customer collection improves, receivable days fall and the cycle may shorten even if inventory is unchanged.
This is why a useful analysis goes beyond the final number and identifies which component changed.
A practical review sequence
- calculate average inventory and observe turnover;
- translate inventory, receivables and payables into comparable day measures;
- calculate the cash conversion cycle;
- compare the result with previous periods using consistent definitions;
- identify whether the movement comes from stock, customers or suppliers;
- connect the operational finding to cash planning.
These indicators describe operating mechanics. They do not replace a cash forecast, profitability analysis or assessment of financing conditions. Their value comes from showing where cash is tied up and how quickly the operating cycle releases it.