🧾
DSO Calculator
Calculate Days Sales Outstanding (DSO), showing on average how many days it takes to collect payment after a sale.
$
$
days
What is Days Sales Outstanding?
Days Sales Outstanding (DSO) measures the average number of days it takes a company to collect payment after making a credit sale. A lower DSO generally means faster cash collection and better cash flow.
The formula
DSO = (Average Accounts Receivable / Total Credit Sales) × Number of Days in Period. Comparing your DSO to your typical invoice payment terms can reveal whether customers are paying on time or slipping behind.
This calculator is for general financial education and analysis purposes.
Last reviewed August 2026