Cash conversion cycle

Definition

The cash conversion cycle (CCC) is the time, in days, it takes a company to turn cash spent on inputs back into cash collected from customers. It combines three stretches: how long stock sits before it sells, how long customers take to pay, and how long you take to pay suppliers. In short: days stock is held, plus days customers take to pay, minus days you take to pay suppliers.

Why it matters

The CCC is one of the clearest measures of how hard your working capital is working. A long cycle means cash is locked up in stock and unpaid invoices for weeks before it returns — money that cannot be used elsewhere. A short or even negative cycle, where you collect from customers before you have to pay suppliers, frees cash and reduces the need to borrow. You can shorten it by selling stock faster, collecting from debtors sooner, or negotiating longer terms with creditors — without stretching them to breaking point. Where the gap is unavoidable, invoice finance or a flexible working capital facility bridges it. Forecast the effect of changes with the working capital calculator.

In practice

Picture a small manufacturing or wholesale limited company: it buys materials, holds them as stock, turns them into finished goods, then sells on trade credit terms. Cash goes out at the start of that chain and only returns once the customer actually pays — everything in between is a period where the company's own money is doing the supplier's and the customer's waiting for them.

For a growing business, the cash conversion cycle often lengthens even while trading is healthy. Winning a larger contract can mean buying more stock upfront and extending credit to a bigger customer, both of which stretch the cycle at exactly the moment cash is most needed to fund growth. Directors who track the cycle spot this squeeze early, rather than being surprised by it when the bank balance tightens.

How lenders read it

A lender looking at a limited company's accounts will read the cash conversion cycle alongside working capital as a sense-check on how the business actually behaves day to day, not just what its profit and loss statement says. A business that is profitable on paper but has a long, stretching cycle can still run short of cash to pay wages, suppliers or tax on time — this is why lenders care about the trend in the cycle, not only its direction at a single point.

Consistency also matters: a cycle that moves predictably with the trading calendar reads very differently to one that is drifting longer for no obvious seasonal reason, which can signal slower-paying customers, overstocking, or supplier terms coming under pressure. Where a temporary stretch is expected — a big order, a new customer relationship — a working capital facility is often used deliberately to bridge it rather than as a sign of distress.