Count accounts receivable days: how long invoices stay unpaid.
Please do not make financial decisions based on these results.
What is the A/R Days Calculator?
Count accounts receivable days: how long invoices stay unpaid. To use the A/R Days Calculator, enter accounts receivable, revenue, days; it returns a/r days, receivables as share of revenue, and shows them instantly as you type.
Where the A/R Days Calculator fits
Count accounts receivable days: how long invoices stay unpaid. The main figure it returns is the A/R days, worked out from the values you enter.
It belongs with the other business planning tools. If you are comparing options or checking a result from another angle, try the Days Off Calculator, Man-Hours Calculator or the Average Collection Period Calculator.
How to use the A/R Days Calculator
- Enter your numbers. Start with Accounts receivable ($), Revenue ($), Days. Use figures from the same period (same month, quarter or year) for every field. Fields marked optional can stay at zero.
- Read the result. The highlighted box gives the A/R days, and the cards below show Receivables as share of revenue. Tables and charts break it down further.
- Test other scenarios. Results update as you type. Change one value at a time to see what drives the answer, and press Reset to go back to the defaults.
Formula and how it works
Example with real numbers
Here is the A/R Days Calculator using the default values shown in the calculator above:
Inputs
| Accounts receivable ($) | 120,000 |
|---|---|
| Revenue ($) | 900,000 |
| Days | 365 |
Results
| A/R days | 48.7 days |
|---|---|
| Receivables as share of revenue | 13.33% |
With these inputs the calculator returns A/R days: 48.7 days. Change any value in the calculator to see how the result moves.
What if you change one input?
Sensitivity check: raising Accounts receivable ($) from 120,000 to 144,000 (about 20% higher) and leaving everything else as in the example above changes the results like this:
| Result | Example | After the change | Change |
|---|---|---|---|
| A/R days | 48.7 days | 58.4 days | +20% |
| Receivables as share of revenue | 13.33% | 16% | +20% |
The input that moves the result most is the one to check twice. Change it in the calculator above to test your own case.
What the results tell you
The results panel of the A/R Days Calculator reports A/R days and receivables as share of revenue. Compare these figures while changing one input at a time, and use the related calculators below to look at the same situation from another angle.
Method and limits. This calculator applies the formula in the section above to your inputs, in your browser; nothing you enter is stored on our servers. The result is only as accurate as the numbers you enter and the formula shown above. It is for information, not financial, tax or legal advice.
Frequently asked questions
What do rising A/R days signal?
Customers are paying more slowly, which strains cash flow.
Can these calculators replace an accountant?
No. They give fast estimates from your inputs. Use an accountant for tax, audited accounts and valuation reports.
Can I use these for a business plan?
Yes. They give quick estimates for break-even, valuation, budgets and project returns. Confirm important figures with your accountant before relying on them.
Are the results guaranteed?
No. Results depend entirely on the numbers you enter and the formulas shown on this page. Please do not make financial decisions based on them alone; confirm important figures with a licensed professional.
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