You will also see it called the cash cycle or the net operating cycle. The shorter it is, the less cash a business needs to fund stock and unpaid invoices. A rising cycle means more cash is tied up in operations, even when sales and profit look healthy.
Cash conversion cycle formula
CCC = DIO plus DSO minus DPO
The formula adds the days stock sits before it is sold to the days customers take to pay, then takes away the days you take to pay suppliers. Each part turns a balance sheet figure into days.
| Part | What it measures | Formula |
|---|---|---|
| Days inventory outstanding (DIO) | How long stock sits before it is sold | Average inventory ÷ cost of goods sold × 365 |
| Days sales outstanding (DSO) | How long customers take to pay | Average accounts receivable ÷ revenue × 365 |
| Days payables outstanding (DPO) | How long you take to pay suppliers | Average accounts payable ÷ cost of goods sold × 365 |
DIO and DPO divide by cost of goods sold because inventory and supplier invoices are recorded at cost, while DSO divides by revenue because receivables include your margin. Inside the company, use credit sales for DSO if you have them. Some analysts use purchases for DPO or year-end balances instead of averages, so keep one method when you compare periods.
DIO plus DSO on its own is the operating cycle, the time from buying stock to collecting cash from the sale. The cash conversion cycle is the part of the operating cycle that suppliers do not fund.
Cash conversion cycle example
Example. A building supplies wholesaler has annual revenue of $10,950,000, or $30,000 a day, and cost of goods sold of $7,300,000, or $20,000 a day. Its average inventory is $1,200,000, average accounts receivable $1,350,000 and average accounts payable $700,000. All figures are illustrative.
- DIO is $1,200,000 ÷ $7,300,000 × 365 = 60 days.
- DSO is $1,350,000 ÷ $10,950,000 × 365 = 45 days.
- DPO is $700,000 ÷ $7,300,000 × 365 = 35 days.
- CCC is 60 plus 45 minus 35 = 70 days.
The operating cycle is 60 + 45 = 105 days. Supplier credit covers the first 35, so the wholesaler funds the other 70 days itself.
Each day cut from DSO releases a day of revenue. Collecting 10 days sooner lowers receivables by 10 × $30,000 = $300,000 and shortens the cycle to 60 days. Holding 10 fewer days of stock releases 10 × $20,000 = $200,000, because inventory is counted at cost.
What a negative cash conversion cycle means
A negative CCC means customers pay you before you pay your suppliers, so supplier credit funds part of the business. It shows up where customers pay at the point of sale, stock sells quickly and suppliers give 30 to 60 days, as in many retailers, and in subscription businesses that bill a year in advance.
Stretching suppliers to get there has limits. In the UK and the EU, a supplier paid late by another business can claim statutory interest and late payment compensation, and UK rules expect agreed terms between businesses to be 60 days or less unless a longer period is fair to both sides.
Businesses without stock, such as agencies and software companies, have no DIO. For them the cycle is DSO minus DPO, so it depends mostly on how fast customers pay.
How to shorten the cash conversion cycle
- Collect sooner. Invoice on delivery, remind customers before the due date and follow up as soon as an invoice is late. Every day off DSO comes straight off the cycle.
- Hold less stock. Reorder closer to demand and clear slow-moving lines, which lowers DIO.
- Agree longer supplier terms. Negotiate them in the contract rather than paying late, which costs interest and goodwill.
- Turn invoices into cash. Early payment discounts and invoice factoring bring cash in sooner, at a cost in margin or fees.
Sunbay works on the DSO part of the cycle. It connects to your ERP or accounting system, sends reminders by email and SMS before and after the due date, makes AI voice calls on invoices that stay unpaid and matches incoming payments using ERP data. It also flags invoices it predicts will be paid late and reports DSO and receivables aging in its analytics view. Tequipy, which provides IT equipment as a service, cut its DSO by 30% with Sunbay.
Frequently asked questions
How do you calculate the cash conversion cycle?
Add days inventory outstanding to days sales outstanding and subtract days payables outstanding. With DIO of 60 days, DSO of 45 and DPO of 35, the cycle is 60 plus 45 minus 35 = 70 days.
Is a negative cash conversion cycle good?
It means customers pay you before you pay suppliers, which frees cash for growth. It is only healthy if suppliers agreed to the terms, because paying them late to get there can cost interest, compensation and goodwill.
What is the difference between the operating cycle and the cash conversion cycle?
The operating cycle is DIO plus DSO, the time from buying stock to collecting cash from the sale. The cash conversion cycle subtracts DPO, the part of that time your suppliers fund by giving you credit.
What is a good cash conversion cycle?
It depends on the industry, because a grocer and a machinery maker hold stock and give credit on very different terms. Compare your cycle with your own history and with companies that sell the same way, and check which of the three parts moved.
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