Combines three ratios already built on this site — inventory days, receivable days, and payable days — into one number showing how long cash is tied up in the operating cycle.
How it works
Days inventory outstanding plus days sales outstanding, minus days payable outstanding, gives the cash conversion cycle — the net number of days a business’s own cash is tied up before it comes back in from a sale.
What this does not include
This takes each component ratio as a direct input — computing DIO, DSO, and DPO themselves requires this site’s separate inventory turnover, accounts receivable turnover, and accounts payable turnover calculators.
How to use this calculator
- Enter days inventory outstanding, days sales outstanding, and days payable outstanding.
A worked example
Days inventory outstanding 45, days sales outstanding 30, days payable outstanding 40: cash conversion cycle = 45+30−40 = 35 days — cash is tied up for over a month before being recovered.
DIO 20, DSO 10, DPO 40: CCC = −10 days — a negative cycle, meaning the business collects cash from customers before it has to pay its own suppliers.
What the variables mean
| Variable | Meaning |
|---|---|
| DIO | Days inventory outstanding — how long inventory sits before selling |
| DSO | Days sales outstanding — how long it takes to collect payment from customers |
| DPO | Days payable outstanding — how long the business takes to pay its own suppliers |
Edge cases worth knowing
A negative cash conversion cycle is a strong sign of operational efficiency — it means suppliers are effectively financing the business’s operations, a position companies like large retailers often achieve through payment-term negotiation.
A negative DIO has no real-world meaning, so the calculator declines to show a result for that input.
Frequently asked questions
What does a negative cash conversion cycle mean?
Suppliers are effectively financing the business’s inventory and receivables — a favorable position large retailers with strong supplier terms often achieve.
Is a shorter cash conversion cycle always better?
Generally yes for cash flow, though an extremely short cycle achieved by squeezing suppliers too hard can strain supplier relationships over time.
Why combine three separate ratios into one metric?
Because each ratio alone shows only one piece of the working capital picture — the combined cycle shows the net cash impact across the full buy-hold-sell-collect sequence.
