Cash Conversion Cycle Calculator
Find how many days your cash is tied up in stock and customer invoices before it comes back — from your financial statements, or from the days you already know.
Last updated: October 2026
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Amounts can be in any currency, as long as all of them use the same one. Days are rounded to one decimal place. General information only, not financial advice.
What the cash conversion cycle measures
Every business that sells on credit or holds stock pays out cash before it gets cash back. It buys materials or goods, holds them until they are sold, waits for customers to pay, and in the meantime pays its own suppliers. The cash conversion cycle (CCC) counts how many days that gap lasts. While the cycle runs, the business has to fund it from its own cash, an overdraft or other borrowing.
A shorter cycle means less cash tied up in day-to-day operations. That is why a profitable business can still run short of cash: if its cycle is long and sales are growing, more and more money is locked in stock and unpaid invoices.
The cash conversion cycle formula
The cycle is built from three measures, each expressed in days. For all three, use balances and totals for the same period, and the same number of days:
| Measure | Formula | What it tells you |
|---|---|---|
| Days inventory outstanding (DIO) | Average inventory ÷ cost of sales × days | How long stock is held before it is sold |
| Days sales outstanding (DSO) | Average receivables ÷ revenue × days | How long customers take to pay |
| Days payables outstanding (DPO) | Average payables ÷ cost of sales × days | How long you take to pay suppliers |
Then CCC = DIO + DSO − DPO. The calculator also shows the operating cycle, DIO + DSO: the total time from buying stock to collecting the cash. The cash conversion cycle is the part of the operating cycle that suppliers do not finance for you.
Inventory and payables days are divided by cost of sales, because both are recorded at cost. Receivable days are divided by revenue, because customers owe you the selling price. Some analysts calculate DPO using purchases instead of cost of sales; if your purchases differ a lot from your cost of sales (for example because stock levels changed sharply), work out DPO that way and use the “From days” option.
Worked examples
1. A small manufacturer
Revenue for the year is 1,200,000 and cost of sales is 780,000. Average inventory is 120,000, average receivables 150,000 and average payables 90,000. These are the calculator’s example figures.
| Step | Calculation | Result |
|---|---|---|
| DIO | 120,000 ÷ 780,000 × 365 | 56.2 days |
| DSO | 150,000 ÷ 1,200,000 × 365 | 45.6 days |
| DPO | 90,000 ÷ 780,000 × 365 | 42.1 days |
| Cash conversion cycle | 56.2 + 45.6 − 42.1 | 59.7 days |
Cash is tied up for about two months. One day of sales is worth 1,200,000 ÷ 365 = 3,287.67, so if customers paid 10 days sooner, roughly 32,876.71 of cash would be released.
2. A retailer with a negative cycle
A shop with revenue of 5,000,000 and cost of sales of 3,800,000 holds average inventory of 260,000. Most customers pay by card, so average receivables are only 40,000, while average payables to suppliers are 515,000.
| Step | Calculation | Result |
|---|---|---|
| DIO | 260,000 ÷ 3,800,000 × 365 | 25.0 days |
| DSO | 40,000 ÷ 5,000,000 × 365 | 2.9 days |
| DPO | 515,000 ÷ 3,800,000 × 365 | 49.5 days |
| Cash conversion cycle | 25.0 + 2.9 − 49.5 | −21.6 days |
The cycle is negative: the shop sells its stock and collects the cash about three weeks before it pays for that stock. Its suppliers are financing its working capital. This is a strength while sales are steady, but it can reverse quickly if sales fall or suppliers shorten their terms.
3. A service business, from days
A consultancy holds no stock, so DIO is 0. Its clients take 52 days to pay and it pays its own suppliers in 20 days. Using “From days”: 0 + 52 − 20 = 32 days. For a service business the cycle is mostly about collecting invoices on time.
What is a good cash conversion cycle?
There is no universal target. A supermarket, a software company and a machinery manufacturer will have very different cycles, and all can be healthy. More useful comparisons are:
- Your own trend. Work out the cycle for each year or quarter. A cycle that keeps getting longer is an early warning that cash is being absorbed, even if profits look fine.
- Similar businesses. Listed companies publish the inventory, receivables, payables, revenue and cost of sales you need to calculate their cycle with the same method.
- Your payment terms. If you give customers 30 days but DSO is 50, a significant share of customers are paying late.
A lower number is generally better, but not at any cost: holding too little stock can lose sales, and paying suppliers very late can damage relationships and cost you early-payment discounts.
How to shorten the cycle
Each component has its own levers. Using the manufacturer in example 1, each 10-day improvement releases this much cash:
| Change | Cash released (approx.) | How |
|---|---|---|
| Collect 10 days faster (DSO) | 1,200,000 ÷ 365 × 10 = 32,876.71 | Invoice promptly, follow up overdue invoices, offer easy payment methods |
| Hold 10 days less stock (DIO) | 780,000 ÷ 365 × 10 = 21,369.86 | Reorder closer to demand, clear slow-moving items |
| Pay suppliers 10 days later (DPO) | 780,000 ÷ 365 × 10 = 21,369.86 | Negotiate terms — but weigh lost discounts and goodwill |
These are one-off releases of cash, not annual savings: the cash comes back once, when the cycle gets shorter, and stays available as long as the shorter cycle is maintained.
Average or closing balances, and which number of days
- Average balances, (opening + closing) ÷ 2, match the balances to the sales and costs that happened during the period. Use closing balances only if that is all you have, and expect them to be distorted by seasonality or rapid growth.
- Days in the period must match the revenue and cost figures. For a full year use 365 (some lenders and textbooks use 360). For a quarter use about 91 days with that quarter’s revenue and cost of sales; do not mix a quarter’s balances with a full year’s sales.
- Credit sales: if a large part of revenue is paid immediately in cash, DSO based on total revenue will look better than the experience of customers who actually buy on credit. Use credit sales for a truer DSO.
Cash conversion cycle in Excel
With revenue in B1, cost of sales in B2, average inventory in B3, average receivables in B4, average payables in B5 and days in B6:
- DIO:
=B3/B2*B6 - DSO:
=B4/B1*B6 - DPO:
=B5/B2*B6 - Cash conversion cycle:
=B3/B2*B6+B4/B1*B6-B5/B2*B6
Need it month by month? The Working Capital Management Template is a paid spreadsheet that tracks DSO, DIO, DPO and the cash conversion cycle for each month, and values the cash that shorter cycles would release. Browse all templates
Frequently asked questions
What is the cash conversion cycle?
The cash conversion cycle (CCC) is the number of days between paying for stock or materials and collecting the cash from selling them. It adds how long inventory is held (DIO) to how long customers take to pay (DSO), and subtracts how long you take to pay suppliers (DPO).
How do you calculate the cash conversion cycle?
CCC = DIO + DSO − DPO. DIO is average inventory ÷ cost of sales × days in the period; DSO is average receivables ÷ revenue × days; DPO is average payables ÷ cost of sales × days. Use the same period and the same number of days for all three.
What is a good cash conversion cycle?
There is no single good number, because it depends heavily on the industry. A shorter cycle means less cash tied up in operations, so the useful questions are whether your cycle is getting shorter or longer over time and how it compares with similar businesses’ published accounts.
Can the cash conversion cycle be negative?
Yes. A negative cycle means you collect cash from customers before you pay your suppliers, so suppliers are effectively financing part of your working capital. It is common in businesses that are paid upfront and sell stock quickly, such as some retailers and subscription businesses.
Should I use 365 or 360 days?
Use 365 days for a year unless your organisation or lender uses 360. What matters most is using the same convention every time, so that results can be compared. For a quarter use about 91 days and for a month the actual number of days, with that period’s revenue and cost of sales.
Should I use average or year-end balances?
Average balances — (opening + closing) ÷ 2 — usually give a fairer picture, because the period’s sales and costs happened throughout the period. Year-end balances are acceptable if that is all you have, but they can distort the result if the business is seasonal or growing quickly.
What is the difference between the operating cycle and the cash conversion cycle?
The operating cycle (DIO + DSO) is the time from buying stock to collecting cash from the sale. The cash conversion cycle subtracts the time you take to pay suppliers, so it measures only the part of the operating cycle you have to finance yourself.
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Written and reviewed by Ghayas Uddin, MS (Finance), financial analyst. Last reviewed 4 October 2026. Found an error? Email support@babadigit.com and we will correct it.