Free cash conversion cycle (CCC) calculator. Combine DSO, DIO, and DPO to measure how fast your business converts investment into cash. Optimize cash flow.
The Cash Conversion Cycle (CCC) measures how many days it takes your business to turn inventory purchases into cash from customers. It combines three key metrics: Days Inventory Outstanding (DIO), Days Sales Outstanding (DSO), and Days Payable Outstanding (DPO).
A shorter CCC means your business generates cash faster. A negative CCC (like Amazon's) means you collect from customers before paying suppliers — the ultimate cash flow advantage.
This calculator computes each component and the total CCC, showing exactly where cash gets stuck in your business cycle and which lever will have the biggest impact on improvement. Even modest improvements to your CCC can free up tens of thousands in working capital. Understanding each component reveals exactly where to focus improvement efforts for the greatest impact on overall cash flow efficiency. Businesses that track their CCC quarterly can spot negative trends early, whether from slowing collections, accumulating inventory, or accelerated vendor payments, and take corrective action before cash reserves erode.
The CCC is the single best metric for understanding operational cash efficiency. It explains why profitable businesses sometimes run out of cash (long CCC) and why some low-margin businesses are cash-rich (short CCC). Improving your CCC by even 5 days can free tens of thousands in working capital. Even a one-day improvement in the cycle can translate into meaningful cash savings at scale.
CCC = DIO + DSO − DPO DIO = (Average Inventory / COGS) × 365 DSO = (Average AR / Revenue) × 365 DPO = (Average AP / COGS) × 365 Negative CCC = collecting cash before paying suppliers
Result: CCC: 50 days
Inventory sits 45 days (DIO) + customers take 35 days to pay (DSO) = 80 days of cash tied up. Minus 30 days of supplier financing (DPO) = 50-day CCC. Improving DIO by 10 days would reduce CCC to 40 days.
Imagine buying raw materials on day 0. You make a product over 15 days (part of DIO), it sits in inventory for another 30 days (total DIO = 45), then you sell it and wait 35 days for payment (DSO). Total cash tied up: 80 days. But you don't pay your supplier until day 30 (DPO), so your CCC is 80 − 30 = 50 days.
Inventory: implement just-in-time ordering, improve demand forecasting, liquidate slow movers. Receivables: offer early payment discounts, automate collection reminders, tighten credit terms. Payables: negotiate net-45 or net-60 terms, use scheduled payments on due dates.
Growing businesses face a paradox: growth increases CCC-related cash needs. If your CCC is 60 days and revenue doubles, you need double the working capital. This is why fast-growing companies often face cash crunches. Plan financing ahead by multiplying your daily revenue by your CCC.
The CCC measures the time in days between paying for inventory and collecting cash from customers. It equals DIO + DSO − DPO. A shorter CCC means better cash efficiency. The cash of a business with a 50-day CCC is "locked up" for 50 days per operating cycle.
Yes, and it's highly desirable. A negative CCC means you collect from customers before paying suppliers. Amazon, with its fast inventory turns, quick payment, and long supplier terms, often has a negative CCC. Subscription businesses can also achieve negative CCC through prepayments.
Focus on the largest component. If DIO is 60 days while DSO is 30, inventory management offers more opportunity. Generally: DPO is quickest to improve (negotiate terms), DSO is next (improve collection processes), and DIO requires operational changes (inventory management).
CCC directly determines working capital needs. A longer CCC requires more working capital to fund the gap between paying suppliers and collecting from customers. Reducing CCC reduces working capital requirements and potentially eliminates the need for short-term borrowing.
Manufacturing: 50-80 days. Wholesale: 30-50 days. Retail: 10-30 days. Technology: 20-50 days. Construction: 60-100 days. Service businesses with no inventory: often just DSO − DPO. Compare against industry peers, not across industries.
Calculate quarterly using trailing 12-month averages. This smooths seasonal variations and provides reliable trend data. Monthly calculation may show noise from timing differences that aren't meaningful for operational decisions.