Calculator · Cash Flow
Cash Conversion Cycle Calculator
Combine inventory, collection and supplier-payment days into a cash conversion cycle, including a negative cycle when collection comes first.
Formula and cost boundary
Cash conversion cycle = inventory days + receivable days − payable days
Use day measures from compatible periods and consistent averages. DSO should relate receivables to credit sales; DIO relates inventory to cost of goods sold. DPO can use credit purchases, while a COGS proxy needs disclosure. A negative cycle describes timing, not negative costs or guaranteed excess cash. Seasonality and averages can hide the actual payment calendar.
Worked example: Positive funding interval
The following inputs are hypothetical values for checking the calculation. They are not recommended prices, wages, margins or platform charges. Keep the units and period shown in each label when replacing them with your own records.
| Input | Example value |
|---|---|
| Inventory holding days | 45 days |
| Receivable collection days | 30 days |
| Supplier payment days | 25 days |
| Result | Calculated value |
|---|---|
| Cash conversion cycle | 50 days |
| Inventory plus collection cycle | 75 days |
Using the result
Save the input set alongside the source date of each quote or cost record. Review the cost boundary before comparing this result with another report: a contribution measure may exclude overhead, and a cash measure follows payment dates. Display rounding does not change the underlying assumptions. Recalculate when an input changes; the tool does not predict future sales or collections.
Are any rates supplied automatically?
No. Numeric fields are your inputs. Example values demonstrate arithmetic only. Check your contracts and records for the amounts that apply to your business.
Why might a result be unavailable or negative?
A missing denominator or inconsistent inputs can make the calculation undefined. Those combinations are rejected or labeled explicitly. A valid negative result remains visible because it may identify a loss or cash shortfall.
Method reference: OpenStax: What Is Working Capital?. Checked October 22, 2026. Current assets, current liabilities and the cash conversion cycle; no liquidity ratio is prescribed.
Related calculators & guides
- Working Capital vs Cash: Read Both Measures
- Cash Conversion Cycle: Add the Timing Components
- Days Sales Outstanding: Use Credit Sales
- Days Inventory Outstanding: Cost-Based Timing
- Days Payable Outstanding: Choose the Right Base
- Early-Payment Discounts: Amount vs Cash Timing
- Growth and the Working-Capital Cash Gap
- Inventory Reorders: Quantity and Cash Timing
- Turn Receivables Aging into a Cash Forecast
- Negative Working Capital: Explain the Components
- Working Capital Calculator
- Working Capital Days Reference
- Cash Flow and Scenario Planning
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