How to Use the Cash Conversion Cycle Calculator
The cash conversion cycle counts the days between paying for inventory and collecting cash from the customer who eventually buys it. It adds days inventory outstanding to days sales outstanding, then subtracts days payable outstanding.
All three components must sit on the same time basis, which here is a 365-day year. DIO and DPO divide by COGS because inventory and payables are carried at cost, while DSO divides by revenue because receivables are recorded at selling price.
A shorter cycle means less working capital is tied up to support the same revenue. A negative result means customers pay before suppliers do โ common in fast-turning retail and subscription models, where cash arrives up front.
There are three levers for shortening it: carry less inventory to cut DIO, invoice and collect faster to cut DSO, or negotiate longer supplier terms to raise DPO. The output is calculated only from the balances you enter, so reconcile them with your financial statements.
Frequently Asked Questions
It is not recommended. Inventory and payables are booked at cost, so COGS keeps both sides of the ratio on the same basis. Dividing by revenue shortens the day counts by the whole gross margin and makes the cycle inconsistent.
For working capital, yes โ the business is funded by its suppliers and customers. But if it comes from stretching payables, check the effect on supplier relationships and any early-payment discounts you are giving up, so look at the three components separately.