Accounts Payable Days Calculator
How Long a Business Holds Onto Cash Before Paying Suppliers
Every unpaid invoice sitting in accounts payable is, in effect, a short-term loan from a supplier. Accounts Payable Days — also called Days Payable Outstanding (DPO) — measures the average number of days a company takes to settle those bills. Stretching payables too far strains supplier relationships; paying too fast gives up free financing a business could otherwise use. This calculator turns the balance sheet and cost figures into that single number.
The Formula
DPO = (Accounts Payable / COGS) × 365
A Worked Example
| Item | Amount |
|---|---|
| Accounts Payable | $60,000 |
| Cost of Goods Sold (annual) | $400,000 |
| Days Payable Outstanding | 54.75 days |
Where This Calculation Matters
- Cash flow strategy — extending DPO within agreed supplier terms frees up cash that would otherwise be paid out early, effectively using suppliers as a source of short-term working capital.
- Cash conversion cycle — DPO is combined with days sales outstanding and days inventory outstanding to see the full picture of how cash moves through a business, from purchase to sale to collection.
- Supplier relationship risk — a DPO that's climbing well beyond stated payment terms can signal cash flow strain and risks damaging supplier trust or losing early-payment discounts.
- Benchmarking against terms — comparing DPO against the actual net terms negotiated with suppliers (net-30, net-60, etc.) shows whether a company is using the full grace period or leaving cash on the table by paying early.
How to Use This Calculator
- Enter Accounts Payable — the current balance owed to suppliers.
- Enter Cost of Goods Sold (COGS) for the same period, typically annualized.
- Select Calculate to see Days Payable Outstanding.
Related Calculations
See the expense figure DPO is built on with the Cost of Goods Sold Calculator, or check whether accounts overall stay in balance with the Trial Balance Calculator.