Days sales outstanding calculator
Measure collection speed for a chosen period and compare it with your previous DSO.
Your inputs
Use one currency and a consistent reporting period.
No sign-up required. Your inputs stay in this browser tab.
Your calculation
Enter your figures and select Calculate.
How the calculation works
DSO = receivables ÷ net credit sales in the period × days in period
Use the result as a planning aid. Check the source records and the assumptions before making financial decisions.
Follow collection timing
The DSO tool compares receivables with credit sales over a reporting period. Use the same convention when comparing successive periods.
Keep AR days and DSO consistent
AR days and DSO describe the same family of collection metrics. Differences in closing versus average receivables and period length can change the result.
Put the numbers to work.
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