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DSO calculator

Days Sales Outstanding Calculator

Estimate how long credit sales remain outstanding in accounts receivable.

FormulaDSO = Average accounts receivable ÷ Credit sales × Days
Calculator

Days Sales Outstanding Calculator

Enter your numbers and the result updates straight away.

Results

Outputs

Average accounts receivable
Waiting for valid inputs
Receivables turnover
Waiting for valid inputs
Days sales outstanding
Waiting for valid inputs

Planning estimate only. Verify assumptions before making a financial decision.

Worked example

$80,000 average receivables against $800,000 annual credit sales produces 36.5 DSO.

Methodology

How this calculation works

Beginning and ending receivables are averaged, divided by credit sales, and scaled to the reporting-period days.

How to interpret the result

Rising DSO can signal slower collections, customer mix changes, disputes, or seasonality. Compare it with stated payment terms and receivables aging.

Limitations

Results are educational planning estimates. They do not include every tax, legal, accounting, financing, or business-specific consideration and are not professional advice.

Sources and further reading

Browse more Operating and Working Capital Calculators.

Formula and example
DSO = Average accounts receivable ÷ Credit sales × Days

$80,000 average receivables against $800,000 annual credit sales produces 36.5 DSO.

Common use cases
  • Track collection efficiency.
  • Complete a cash conversion cycle.
  • Model cash released by faster collection.
Days Sales Outstanding Calculator FAQ

How is DSO calculated?

Beginning and ending receivables are averaged, divided by credit sales, and scaled to the reporting-period days.

What should I check before using the result?

Rising DSO can signal slower collections, customer mix changes, disputes, or seasonality. Compare it with stated payment terms and receivables aging.

Does this calculator provide financial advice?

No. It applies the stated formula to your inputs for educational planning. Validate definitions, timing, accounting treatment, and assumptions before acting.