Cash Conversion Cycle for Distributors: Formula and Ways to Shorten It

Three components make up the cycle:

• Days inventory outstanding (DIO): average inventory divided by cost of goods sold, times 365. It shows how long stock sits before it sells.
• Days sales outstanding (DSO): accounts receivable divided by revenue, times 365. It shows how long customers take to pay.
• Days payables outstanding (DPO): accounts payable divided by cost of goods sold, times 365. It shows how long you take to pay suppliers.

The cycle equals DIO plus DSO minus DPO. A longer cycle means more cash is tied up in operations. For a distributor, inventory and receivables usually dominate, so the cycle can be long even when the business is profitable. Use average balances over a period where you can, because a single month-end can be distorted by a big shipment or a late payment.

Say a distributor has $15,000,000 of annual revenue, $12,000,000 of cost of goods sold, average inventory of $2,000,000, receivables of $2,500,000 and payables of $1,000,000.

• DIO: for example, $2,000,000 divided by $12,000,000 times 365 is about 61 days.
• DSO: if you divide $2,500,000 by $15,000,000 and multiply by 365, you get about 61 days.
• DPO: suppose payables are $1,000,000 against $12,000,000 of cost of goods sold, which is about 30 days.
• The cash conversion cycle is 61 plus 61 minus 30, or about 91 days.

Now price a day: with $15,000,000 of annual revenue, one day of revenue is about $41,000, and one day of cost of goods sold is about $33,000, for example. Say you cut DSO by five days: that frees roughly $205,000. Cutting DIO by five days or extending DPO by five days would each free roughly $164,000, if you use the same figures. Those figures give you a way to rank the levers by cash value before you spend effort on any of them.

Benchmarks help you see whether a number is unusual, though your own trend matters more. In US market data from January 2026, receivables days averaged 45.2 across the total market excluding financials¹, and inventory days averaged 32.8². Inventory days in that dataset are computed on sales, not on cost of goods sold, so they understate the textbook DIO used above.

Industries differ sharply. Receivables days were 100.4 for engineering and construction and 6.4 for grocery and food retail, and inventory days ran from 1.3 for trucking to 226.4 for homebuilding, all in the same dataset. For a distributor, compare against direct peers, your suppliers' terms and your own history.

For more industry detail, see the cash conversion cycle benchmarks guide, and use the working capital calculator to model changes.

Work on each component with specific actions.

• Receivables: send accurate invoices on the shipping date, agree clear terms up front, set credit limits by customer, follow up on a schedule before invoices are late, resolve disputes fast and offer early-payment discounts only where they cost less than the financing you would otherwise use.
• Inventory: classify SKUs by sales velocity and margin, set reorder points from real lead times, cut slow movers, shorten supplier lead times and consider consignment or vendor-managed arrangements where suppliers hold the stock.
• Payables: negotiate longer terms with key suppliers, pay on the due date instead of early, and synchronize payment runs with customer receipts.

Check the trade-offs before acting. For example, a 2% discount for paying 20 days early is worth about 37% annualized, so taking it usually makes sense if you have the cash or cheap financing. Stretching payables past terms can cost you supplier goodwill and priority in shortages. Cutting inventory too far can lead to stockouts and lost sales.

Most distributors carry a positive cycle and fund it with a line of credit, retained cash or receivables financing. The financing cost is the cash tied up times your borrowing rate, so shortening the cycle also cuts interest. If you are weighing financing, compare a bank line with receivables-based options on total cost, recourse and how quickly cash arrives.

A negative cycle, where customers pay before you pay suppliers, is unusual for distributors. It occurs where customers prepay or pay by card at the point of sale and suppliers give long terms. Most distributors are better served by aiming for a shorter cycle than by chasing a negative one.

Extend payables carefully. Card programs can add float on supplier payments if the supplier accepts cards,. Confirm the card terms and fees before you route supplier payments through one. Then track the cycle monthly, by product line if your data allows, so you can see which suppliers and customers drive the gap.