Operating Cycle
The average time it takes a company to convert raw materials into cash from sales, flowing through inventory, production, and receivables.
What is Operating Cycle?
The operating cycle measures the total time elapsed from the purchase of inventory to the collection of cash from customers. It equals the days inventory outstanding (DIO) plus the days sales outstanding (DSO): Operating Cycle = DIO + DSO. A shorter operating cycle indicates faster inventory turnover and quicker cash collection, which reduces the need for working capital financing. The cash conversion cycle (CCC) refines this by also subtracting days payable outstanding (DPO) — the time the company takes to pay its own suppliers — to measure the net days a business must finance its operations. Retailers and manufacturers monitor the operating cycle to optimize inventory levels, credit policies, and payment terms. Industries like grocery retail have very short cycles (days), while capital-intensive manufacturers may have cycles spanning months.
Example
A clothing manufacturer buys fabric and takes 45 days to produce finished goods (DIO = 45). Wholesale customers then take 30 days to pay invoices (DSO = 30). The operating cycle = 45 + 30 = 75 days. The company pays its fabric suppliers in 40 days, so the cash conversion cycle = 75 − 40 = 35 days of self-financed operations.