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Business Calculators

Days Sales Outstanding (DSO) Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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Verified formula Private

Days sales outstanding

50.0

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Days Sales Outstanding (DSO) Calculator

The Days Sales Outstanding (DSO) Calculator works out your days sales outstanding in an instant. Enter accounts receivable, total credit revenue and days in period and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the accounts receivable.
  2. Enter the total credit revenue.
  3. Enter the days in period.
  4. Read off your days sales outstanding — the calculator updates automatically, with no button to press.

Formula

The Days Sales Outstanding (DSO) Calculator uses the formula:

Days sales outstanding = Accounts receivable ÷ Total credit revenue × Days in period

Worked example

For example, with accounts receivable of 50,000, total credit revenue of 365,000 and days in period of 365, the days sales outstanding is 50.0.

Inputs used
Accounts receivable 50,000
Total credit revenue 365,000
Days in period 365
Results
Days sales outstanding 50.0

Results are estimates for educational use, not professional advice.

Frequently asked questions

DSO is the average number of days a company takes to collect payment after a credit sale: receivables ÷ revenue × days in period.

Lower is better, as cash is collected faster. A figure near your payment terms (such as 30 or 45 days) is healthy.

A rising DSO can signal slow collections or credit problems, tying up cash that could fund operations.

Use the days in the period that matches the revenue figure, typically 365 for annual or 90 for a quarter.

The Days Sales Outstanding (DSO) Calculator uses the formula: Days sales outstanding = Accounts receivable ÷ Total credit revenue × Days in period. For example, with accounts receivable of 50,000, total credit revenue of 365,000 and days in period of 365, the days sales outstanding is 50.0.

Enter the accounts receivable. Enter the total credit revenue. Enter the days in period. Read off your days sales outstanding — the calculator updates automatically, with no button to press.

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