Cash Conversion Cycle Calculator
Use this cash conversion cycle calculator to see how many days cash is tied up in inventory, receivables and payables, and measure working capital.

What it does
The Cash Conversion Cycle Calculator shows how many days cash stays tied up in operations before it comes back as collected sales. It combines how long inventory sits, how long customers take to pay, and how long you take to pay suppliers.
Data sources & parameters
This calculator uses standard financial formulas and runs entirely in your browser. It needs no external rate data — your result is computed only from the values you enter above.
We always strive to use the latest data for every variable so our results and reports are as accurate as possible. Even so, errors are possible — you should not rely on this tool or its report alone, and we accept no liability for any decision made based on it.
The formula
Cash conversion cycle = Days inventory outstanding + Days sales outstanding − Days payable outstanding
How it works
It adds days inventory outstanding to days sales outstanding to get the operating cycle, then subtracts days payable outstanding. A lower or negative result means suppliers finance more of your working capital.
Where it is used
- Spotting how much cash a business ties up in working capital
- Comparing efficiency across periods or against competitors
- Testing how faster collections or slower payments free up cash
Worked example
A company holds inventory for 60 days, collects from customers in 45 days and pays suppliers in 30 days. Its operating cycle is … days and its cash conversion cycle is … days.
What the cash conversion cycle calculator does
The cash conversion cycle is the number of days cash stays tied up in a business's operations before it comes back as collected sales. Enter your days inventory outstanding (how long stock is held before sale), days sales outstanding (how long customers take to pay) and days payable outstanding (how long you take to pay suppliers). The calculator returns the operating cycle and the cash conversion cycle in days, with a chart comparing the three parts. The delay is money the business has to finance itself, so a shorter cycle ties up less cash.
How the cycle works
Cash is spent on inventory, the stock waits to be sold, often on credit, and the customer eventually pays. Meanwhile the business does not pay its suppliers immediately, so suppliers finance part of the stock. Days inventory outstanding plus days sales outstanding gives the operating cycle, the time from buying inventory to collecting cash. Subtracting days payable outstanding gives the cash conversion cycle, because supplier credit covers part of that period.
The formula
Cash conversion cycle = Days inventory outstanding + Days sales outstanding − Days payable outstanding
The first two lengthen the cycle because the business is waiting for its money; the third shortens it because the business holds its cash while suppliers wait. Paying suppliers a little later, without harming the relationship, is therefore a legitimate way to shorten the cycle.
Why it matters
Two businesses with the same profit can be in very different health, because profit is not cash. A company can be profitable on paper and still short of cash if too much is tied up in unsold stock or unpaid invoices. A long cycle has to be funded from reserves, an overdraft or a loan, all of which cost money or carry risk. That is why fast-growing companies with long cycles often run into cash trouble even as sales rise.
Reading the three components
- Days inventory outstanding reflects stock management; high figures can mean overstocking, slow-moving lines or poor forecasting.
- Days sales outstanding reflects credit control; high figures point to slow-paying customers or weak collection.
- Days payable outstanding reflects supplier terms; higher figures help the cycle, but pushing too far can strain relationships or lose early-payment discounts.
The largest component shows where to focus. There is little point tightening collections if the real problem is stock sitting in the warehouse.
Improving the cycle
Each lever has a limit. Running stock too lean risks lost sales when demand rises; very strict credit terms can drive customers to competitors; stretching suppliers too far can damage trust, bring worse prices or breach agreed terms. Lasting improvements usually come from better processes: better forecasting to hold less stock, clear invoices and reminders to speed collection, and supplier terms that work for both sides.
Track the cycle over time and against similar businesses. A single figure means little; whether it is improving and how it compares with your industry tell you more.
This article is general information only and is not financial advice.
About This Cash Conversion Cycle Calculator
Use this cash conversion cycle calculator to get an instant estimate based on the figures you enter. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.
