Cash Conversion Cycle Calculator
Days between paying suppliers and collecting from customers.
Reviewed by the Calculation Machine team · Updated 24 October 2026 · How we check our maths
Your values
ⓘ Live results
- Cash conversion cycle
- 53 days
- Cash tied up
- $174,246.58
- Operating cycle
- 83 days
- Cash released per 5 days saved
- $16,438.36
Quick answer
The cash conversion cycle (CCC) is the number of days between paying suppliers and collecting cash from customers: days inventory outstanding + days sales outstanding − days payables outstanding. A business holding stock for 45 days, collecting from customers in 38 days and paying suppliers in 30 days has a CCC of 53 days.
What the Cash Conversion Cycle calculator does
This calculator adds inventory days and receivable days, subtracts payable days, and turns the result into a dollar figure: roughly how much cash your operating cycle locks up, and how much you would free by cutting five days from it. Finance teams use it in budgeting and lender conversations; owners of growing product businesses use it to understand why profitable months can still leave the bank account short.
The cash-tied-up figure is an estimate based on daily revenue (annual revenue ÷ 365 × CCC). It is a quick sizing tool, not a substitute for a cash-flow forecast, and it assumes sales are fairly even through the year. For the balance-sheet view of the same problem, see the working capital calculator.
If you do not have the day counts yet, the section below shows how to work out each one from your financial statements.
The formula
CCC = DIO + DSO − DPO Cash tied up ≈ annual revenue ÷ 365 × CCC Operating cycle = DIO + DSO
| Symbol | Meaning | Unit |
|---|---|---|
| DIO | Days inventory outstanding: average time stock sits before it is sold | days |
| DSO | Days sales outstanding (debtor days): average time customers take to pay | days |
| DPO | Days payables outstanding (creditor days): average time you take to pay suppliers | days |
| annual revenue | Sales for the year, used to convert days into dollars | $ |
The cash conversion cycle is a standard working-capital measure in corporate finance textbooks such as Brealey, Myers and Allen's *Principles of Corporate Finance*. It is most meaningful for businesses that hold inventory and sell on credit. Service firms with no stock can set DIO to zero; subscription businesses paid upfront often have a negative cycle.
This page also covers the accounts payable days and debtor days calculations that used to have their own pages: DPO and DSO are two of the three inputs, and their formulas are below.
Worked examples
Wholesale distributor
A distributor with $1.2 million of annual sales holds stock for 45 days, collects in 38 days and pays suppliers in 30 days.
Inputs
- Days inventory45 days
- Days sales outstanding38 days
- Days payable outstanding30 days
- Annual revenue1200000 $
Result
- Cash conversion cycle53 days
- Cash tied up$174,246.58
- Operating cycle83 days
- Cash released per 5 days saved$16,438.36
A 53-day cycle ties up about $174,000. Each five days cut — for example by chasing invoices sooner — frees roughly $16,400.
Grocery-style retailer with a negative cycle
A retailer with $5 million of sales turns stock in 20 days, is paid by card within 2 days and pays suppliers on 35-day terms.
Inputs
- Days inventory20 days
- Days sales outstanding2 days
- Days payable outstanding35 days
- Annual revenue5000000 $
Result
- Cash conversion cycle-13 days
- Cash tied up-$178,082.19
- Operating cycle22 days
- Cash released per 5 days saved$68,493.15
The cycle is −13 days: customers pay before suppliers are paid, so the business is effectively funded by its suppliers. The negative cash-tied-up figure is cash this model provides rather than consumes.
Manufacturer with slow stock and slow payers
A manufacturer with $8 million of sales holds raw materials and finished goods for 90 days, waits 60 days for customers and pays suppliers in 45.
Inputs
- Days inventory90 days
- Days sales outstanding60 days
- Days payable outstanding45 days
- Annual revenue8000000 $
Result
- Cash conversion cycle105 days
- Cash tied up$2,301,369.86
- Operating cycle150 days
- Cash released per 5 days saved$109,589.04
A 105-day cycle locks up about $2.3 million. Growth makes this worse, because every extra dollar of sales needs more stock and receivables funded in advance.
How to calculate DIO, DSO and DPO
Use averages of the opening and closing balance-sheet figures for the period, and the income-statement figures for the same period. For a quarter, replace 365 with the number of days in the quarter.
| Input | Formula | Also called |
|---|---|---|
| DIO | Average inventory ÷ cost of goods sold × 365 | Inventory days, days in inventory |
| DSO | Average accounts receivable ÷ revenue × 365 | Debtor days, receivable days |
| DPO | Average accounts payable ÷ cost of goods sold × 365 | Creditor days, payable days |
Ways to shorten the cycle
- Inventory (DIO): reorder in smaller, more frequent batches, clear slow-moving lines and review safety stock. The inventory turnover calculator shows the same measure as turns per year.
- Receivables (DSO): invoice on delivery rather than at month end, offer card or direct-debit payment, and follow up on overdue accounts at a fixed point.
- Payables (DPO): negotiate longer terms, but compare against any early-payment discount. Skipping a 2% discount for paying 20 days early costs far more than most loans.
Stretching suppliers beyond agreed terms lowers the number on paper but damages relationships and can raise prices later, so treat DPO as something to negotiate, not to abuse.
What a good cash conversion cycle looks like
There is no universal benchmark because the cycle depends on the business model. Supermarkets and online retailers paid by card can run negative cycles; manufacturers and wholesalers commonly run 60 to 120 days or more. The most useful comparisons are your own trend over time and companies in the same industry. A rising CCC while sales grow is an early warning that the business will need more funding; if cash is already short, a burn rate and runway calculator shows how long reserves will last.
How to use the Cash Conversion Cycle Calculator
- 1Work out inventory days, receivable days and payable days from your accounts (formulas in the table above), or take them from your accounting software's reports.
- 2Enter each figure in days, using the same period for all three.
- 3Enter annual revenue to convert the cycle into an approximate dollar amount.
- 4Read the cash released per 5 days saved to compare the value of improving each input.
Frequently asked questions
Can the cash conversion cycle be negative?
Yes. If customers pay you before you pay suppliers, DPO exceeds DIO + DSO and the cycle is negative. Large retailers and some subscription businesses operate this way.
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 for it. The cash conversion cycle subtracts payable days to show how long your own cash, rather than suppliers' credit, funds that cycle.
How do I calculate debtor days?
Divide trade receivables by annual credit sales and multiply by 365. $150,000 of receivables on $1.2 million of sales is about 46 days.
How do I calculate accounts payable days?
Divide trade payables by cost of goods sold (or total purchases) and multiply by 365. $60,000 of payables on $730,000 of cost of sales is 30 days.
Should I use cost of goods sold or revenue for DIO and DPO?
Cost of goods sold, because inventory and payables are recorded at cost. Using revenue understates both figures.
References
- Principles of Corporate Finance — Brealey, Myers & Allen (McGraw-Hill)
- Corporate Finance — Ross, Westerfield & Jaffe (McGraw-Hill)
About this calculator
- Built and reviewed by the Calculation Machine team · How we build and test calculators
- Last reviewed: October 24, 2026
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