Working Capital & Cash Conversion Cycle Calculator

The cash conversion cycle is the number of days between paying suppliers and getting paid by customers. A negative CCC means you are funded by your supply chain; a high positive CCC means you finance everyone else.

The cash conversion cycle

The CCC measures how many days of working capital the business needs to fund. A 60-day CCC means that for every $1M of monthly COGS, you need approximately $1.97M of working capital (60/365 × 12 × $1M / 12) to keep the doors open. Reducing CCC by 10 days releases real cash that can fund growth or pay down debt.

Negative CCC: the supply-chain bank

Some businesses have negative CCC: they collect from customers before paying suppliers. Amazon's marketplace business famously runs negative — sellers wait two weeks for payouts while customers pay instantly. Subscription businesses billed annually run negative when the receivable converts to cash before any meaningful COGS is incurred. Negative CCC is a powerful financial structure because growth requires no working capital — in fact, growth releases cash.

Net working capital

Net working capital is the cash the business would have if it collected everything owed and paid everything due. It's a snapshot of liquidity. A negative NWC isn't necessarily a problem (see negative CCC above), but it does mean current obligations exceed current assets — manageable only if the business is reliably generating cash.

Worked example

A growing distributor has $24M revenue, $18M COGS, $4.2M AR, $2.7M inventory, and $1.8M AP. DSO: 64 days. DIO: 55 days. DPO: 36 days. CCC: 83 days — meaning every dollar of COGS is funded for 83 days before customer cash arrives. Reducing DSO from 64 to 50 (better collections) would release $920K of cash — about a month of payroll for a business this size.

What this doesn't account for

• Seasonality. Year-end snapshots can over- or under-state averages dramatically. Monthly or quarterly averages give a truer picture.
• Customer mix. A blended DSO can hide one slow-paying enterprise customer skewing the average.
• Vendor stretching. High DPO can mean strong working-capital management or it can mean late payments — not the same thing.
• Inventory quality. See the turnover calculator for the related caveats.

FAQ

How do you calculate the working capital cycle using COGS? Inventory and payables are measured against cost of goods sold, receivables against revenue. DIO = Inventory ÷ COGS × 365, DPO = Accounts payable ÷ COGS × 365, DSO = Accounts receivable ÷ Revenue × 365. Daily COGS (COGS ÷ 365) is the cost of one day of inventory or payables; the cycle is CCC = DIO + DSO − DPO.

What is the difference between the cash conversion cycle and net working capital days? The CCC is a flow measure in days built from three operating ratios (DIO + DSO − DPO). Net working capital days is a balance-sheet measure: NWC ÷ Revenue × 365, and NWC can include cash, prepaid items, accrued liabilities and short-term debt that the CCC ignores. They usually move in the same direction, but a business can have a short CCC and still carry a large NWC balance because of cash or other current assets.

How much cash is released by reducing working capital days? Multiply the days removed by the daily base for that ratio. For DSO use revenue ÷ 365; for DIO and DPO use COGS ÷ 365. Example: $24M revenue is about $65,750 of sales per day, so cutting DSO from 64 to 50 days (14 days) releases roughly $920K of cash. Stretching DPO by 10 days on $18M COGS releases about $493K.

What does a 60-day cash conversion cycle mean as a percent of revenue? Working capital tied up ≈ CCC ÷ 365 × the cost base being funded. If COGS is 75% of revenue, a 60-day CCC ties up about 60 ÷ 365 × 75% ≈ 12% of annual revenue. On $10M of revenue that is roughly $1.2M permanently invested in the operating cycle, and the amount grows in proportion to revenue.

Is a negative cash conversion cycle good? Usually yes. A CCC of −2 days means the business collects from customers slightly before it pays suppliers, so growth generates cash instead of consuming it. Grocers, restaurants, marketplaces and annual-billing SaaS often run near zero or negative. Check that the negative number comes from fast collection and fast inventory turns, not from paying suppliers late, which strains relationships and can reverse quickly.

What is a typical cash conversion cycle for restaurants and distributors? Restaurants collect at the point of sale (DSO near zero), hold a few days of perishable inventory and pay food suppliers in 7–30 days, so their CCC is often close to zero or negative. Wholesale distributors (food, fuel, industrial supplies) carry receivables and inventory, and commonly run 30–90 days. Manufacturers are often higher. In due diligence, compare against peers and look at monthly averages rather than a year-end snapshot.