METHOD & GUIDANCE
How this calculation works
Keep every input on the same time basis—for example, one month or one financial year—and do not mix cash figures with accrual figures. Tool IQ recalculates every output immediately; nothing you enter is saved or sent to us.
How to use the result
Track the component days as well as the total cycle; improving inventory or collections may be safer than simply delaying supplier payments.
Worked example
The calculator converts average inventory, receivables and payables to days using the matching annual revenue and cost bases, then combines them.
Common mistakes
- Using revenue for inventory or payables days instead of COGS.
- Mixing point-in-time balances with mismatched periods.
- Assuming a negative cycle is automatically sustainable.
Frequently asked questions
Is the cash conversion cycle calculator free?
Yes. It requires no account and stores no calculation inputs.
Can I use the answer for a formal filing?
No. It is a planning estimate, not accounting, tax, legal or investment advice. Confirm material decisions with a qualified professional.
Which period should I use?
Keep every input on the same basis—for example, one month or one financial year. Use current figures first, then save a cautious scenario for comparison.
Continue the decision
- Days Sales Outstanding Calculator — See how long customer invoices take to become cash.
- Inventory Turnover Calculator — Measure how quickly stock turns into sales.
Popular small-business decision paths
- Build the next cash-flow forecast
- Measure how quickly invoices become cash
- Calculate UK late-payment interest
Build and download a free three-month cash-flow forecast →
Method reviewed 5 August 2026. Figures are illustrative and calculated locally in your browser. Official sources are linked where a rule or obligation affects how the result should be used. Read the Tool IQ calculation standard for our checking process, limitations and corrections policy.