A/R Days Calculator
Measure how many days it takes, on average, for a company to collect payment from its customers.
What is A/R Days (DSO)?
Accounts Receivable Days, also called Days Sales Outstanding (DSO), measures the average number of days it takes a company to collect payment after making a credit sale. Lower A/R days generally indicate more efficient collections and stronger cash flow.
The formula
A/R Days = (Average Accounts Receivable / Total Credit Sales) × Number of Days in the Period. The receivables turnover ratio (the inverse relationship) shows how many times receivables are collected within the period.
This calculator is for general financial education and analysis practice, not investment or credit advice. A/R days is most useful when tracked over time or benchmarked against industry peers.