The working capital cycle, explained: how to measure it and shorten it

Every business has money tied up between paying for inputs and getting paid by customers. That gap is the working capital cycle (also called the cash conversion cycle), and it is one of the first numbers a lender looks at when sizing a working capital limit.

How to calculate it

The cycle has three parts, each measured in days:

• Inventory days = average inventory ÷ cost of goods sold × 365
• Receivable days = average trade receivables ÷ revenue × 365
• Payable days = average trade payables ÷ cost of goods sold × 365

Working capital cycle = inventory days + receivable days − payable days.

For example, a manufacturer holding 60 days of inventory, collecting from customers in 75 days and paying suppliers in 45 days has a cycle of 90 days. Every rupee of sales needs roughly a quarter of a year of funding before it comes back as cash.

Why lenders care

Banks and NBFCs typically size cash credit and overdraft limits from projected current assets and the cycle. A long or lengthening cycle signals that growth will consume cash, so a lender will want to see how it will be funded. A stable or shortening cycle signals discipline.

Levers that shorten the cycle

• Invoice discounting or factoring converts receivables to cash soon after invoicing, without waiting for the customer's payment date.
• Supply chain finance lets you pay suppliers on time (or early, for a discount) while your own payment to the financier is due later.
• Tighter inventory planning — fewer slow-moving SKUs and better demand forecasting free up cash directly.
• Clear credit terms with customers, enforced consistently, reduce receivable days over time.

Choosing the right facility

A business with a long but predictable cycle usually fits a fund-based limit such as cash credit. A business whose cycle swings with large orders often does better with transaction-linked products such as purchase order or invoice finance, which grow with the order book. If you are unsure which fits, a capital specialist can model your cycle and compare options across lenders.