Profit and cash are different things, and working capital is where most of the difference lives. A growing company frequently consumes more cash than it generates — not because anything is wrong, but because growth must be funded before it is paid for.
A seller buys stock every morning for cash and sells to households for cash the same day. Then a restaurant offers a large order on 60-day credit. The order is profitable — but for two months he must buy far more stock every morning while receiving nothing. He is more profitable and closer to bankruptcy at the same time.
That is the working capital squeeze exactly. Every rupee of extra revenue required cash up front. The P&L shows a thriving business; the bank account tells a different story.
The three components
| Component | What it measures | Direction you want |
|---|---|---|
| Inventory days | How long stock sits before it is sold | Lower — cash tied up in a warehouse earns nothing |
| Receivable days | How long customers take to pay | Lower — a sale is not a sale until it is collected |
| Payable days | How long you take to pay suppliers | Higher — supplier credit is interest-free funding |
- inventory days
- (inventory ÷ cost of goods sold) × 365
- receivable days
- (receivables ÷ revenue) × 365
- payable days
- (payables ÷ cost of goods sold) × 365
Example: 70 + 65 − 45 = 90 days. Cash leaves the business roughly 90 days before it comes back, and every rupee of growth must fund that gap.
Unit economics describe whether each sale is profitable. The cash conversion cycle describes when you actually see the money — a business can pass one and fail the other.
Enter revenue, cost of goods and the three year-end balances to see receivable, inventory and payable days — and how much cash a shorter cycle would free.
How growth consumes cash
What deterioration looks like
The individual numbers matter far less than their direction over several years. A steady climb in receivable days is one of the earliest signals that reported revenue is being manufactured rather than earned.
- Receivable days flat or falling as revenue grows
- Inventory days stable through a growth phase
- Working capital growing slower than revenue
- Operating cash flow tracking profit over five years
- Receivable days climbing every year
- Inventory building faster than sales
- Working capital growing faster than revenue
- Profit rising while operating cash flow stagnates
Working capital changes appear directly in operating cash flow. When profit and operating cash flow diverge, this is usually the reason.
A company has inventory days of 60, receivable days of 80 and payable days of 100. What is its cash conversion cycle, and what does it mean?
Sabzi wala roz cash mein bechta tha. Ek restaurant ne bada order diya — par paisa 60 din baad. Ab usse roz zyada maal khareedna pad raha hai aur aa kuch nahi raha. Woh zyada profitable bhi hai aur zyada tang bhi — growth cash kha jaati hai, yahi working capital hai.
- Growth consumes cash through working capital before it produces any.
- Cash conversion cycle = inventory days + receivable days − payable days.
- A negative cycle is a major structural advantage — growth funds itself.
- The trend matters more than the level; rising receivable days signal falling growth quality.
- Working capital changes are the usual explanation when profit and operating cash flow diverge.
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Common questions
Short, direct answers to what people ask about this topic.
- cash conversion cycle meaning
- The cash conversion cycle is the number of days between paying cash for inventory and collecting cash from the customer who finally buys it. It is inventory days plus receivable days minus payable days, so a 90-day cycle means every rupee of sales has to be funded for about three months before the money comes back. The shorter the cycle, the less cash growth absorbs.
- the cash conversion cycle equals inventory days plus receivable days minus
- Payable days. Inventory days and receivable days measure how long cash sits locked up in stock and in unpaid invoices, while payable days measure how long suppliers fund the business for free — which is why supplier credit is subtracted. Inventory days are inventory ÷ cost of goods sold × 365, and receivable days are receivables ÷ revenue × 365.
- can a company be profitable and still run out of cash
- Yes, and working capital is the usual reason. Growth has to be funded before it is paid for: stock is bought and customers are given credit long before the money returns, so a company growing 40% on a 90-day cycle can report an excellent profit and generate almost no spare cash. This is why reported profit and operating cash flow can diverge for years in a business that is doing nothing wrong.
- how do I calculate receivable days from an annual report
- Divide trade receivables on the balance sheet by revenue for the year and multiply by 365. A figure of 65 means customers take roughly 65 days on average to pay. The level matters far less than the direction over five years, because receivable days climbing while revenue climbs usually means sales are being pushed to weaker customers on easier terms.
- what is the cash conversion cycle if inventory days are 60 receivable days 80 and payable days 100
- 40 days — 60 + 80 − 100 = 40. Suppliers are financing most of the cycle, leaving only a 40-day gap the company has to fund itself. When the subtraction produces a negative number, as it does for many retailers and quick-service chains that collect immediately and pay suppliers later, growth generates cash instead of consuming it.