Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Uses credit purchases, not COGS as a proxy. Exclude unrelated liabilities.
Example Calculation
- Average trade payables: 100
- Period credit purchases: 1000
- Days in period: 365
Average trade payables = 100; Period credit purchases = 1000; Days in period = 365. The primary result is 36.5.
Frequently asked questions
How do I use this calculator?
Enter average trade payables, period credit purchases, days in period. The result updates automatically. Use Reset to restore the example values.
What method does it use?
DPO=average payables/credit purchases × days.. Uses credit purchases, not COGS as a proxy. Exclude unrelated liabilities.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.