Days Payable Outstanding (DPO) Calculator
Find the average days you take to pay suppliers.
Default 365
Results update as you type.
How it works
Days payable outstanding, or DPO, measures how long a company takes on average to pay its suppliers and vendors, and this calculator finds it. You enter your accounts payable, your cost of goods sold for the period, and the number of days in that period, and it returns the DPO. The calculation divides payables by cost of goods sold and multiplies by the period length, usually 365 days for a year. DPO is a key working capital metric that works as the mirror image of days sales outstanding: while DSO measures how fast you collect from customers, DPO measures how slowly you pay suppliers. A higher DPO means the company retains its cash longer, effectively using supplier credit as a source of short-term financing, which improves cash flow and liquidity. However, a DPO that is too high can strain supplier relationships, forfeit early-payment discounts, or signal cash difficulties, so there is a balance. A low DPO means the company pays quickly, which pleases suppliers and may capture discounts but ties up cash sooner. DPO is a component of the cash conversion cycle, alongside DSO and days inventory outstanding, which together show how efficiently a company turns its investments in inventory and receivables into cash. Comparing DPO to your payment terms and to industry peers gives the most insight. Enter your payables, cost of goods sold, and period to find your DPO.
DPO = (accounts payable / cost of goods sold) × days in period
Days payable outstanding measures the average number of days a company takes to pay its suppliers. It divides accounts payable by the cost of goods sold for the period and multiplies by the number of days in that period. A higher DPO means the company holds onto its cash longer before paying bills.
Source:Financial ratios
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter accounts payable and cost of goods sold.
- 2
Adjust the options
Adjust period length if they apply — sensible defaults are already set.
- 3
Read your result
Days payable outstanding updates instantly as you type — no button to press.
Frequently asked questions
What is days payable outstanding?
Days payable outstanding, or DPO, is the average number of days a company takes to pay its suppliers after receiving goods or services. It equals accounts payable divided by cost of goods sold for a period, multiplied by the days in that period. It measures how a company uses supplier credit to manage cash flow.
Is a higher or lower DPO better?
It depends on balance. A higher DPO lets a company hold cash longer, using supplier credit as free short-term financing, which aids liquidity. But too high a DPO can damage supplier relationships, forfeit early-payment discounts, or signal cash trouble. A very low DPO pleases suppliers but ties up cash sooner. The ideal DPO aligns with your terms and strategy.
How does DPO relate to DSO?
DPO and DSO are mirror images: DSO measures how quickly you collect cash from customers, while DPO measures how slowly you pay suppliers. A business benefits from collecting fast (low DSO) and paying more slowly (higher DPO), which keeps more cash on hand. Both are components of the cash conversion cycle.
What is the cash conversion cycle?
The cash conversion cycle measures how long it takes to turn investments in inventory and other resources into cash from sales. It combines days inventory outstanding plus days sales outstanding minus days payable outstanding. A shorter cycle means cash returns faster, so a higher DPO, by delaying payments, helps shorten the cycle and improve liquidity.
Should I use COGS or total purchases?
The standard formula uses cost of goods sold, which approximates the cost of what the company bought and sold during the period. Some analysts use total supplier purchases for more precision if that figure is available. Cost of goods sold is the common and widely accepted denominator, giving a reliable DPO for comparison.