Working Capital Needs Calculator
Working capital essential to running your business. This calculator assists you in determining your working capital needs for the next year.
How the working capital needs calculator works
It measures your cash conversion cycle — days inventory plus days to collect receivables, minus days you take to pay suppliers — and multiplies it by your daily operating cost to estimate the cash tied up in operations.
Worked example: with annual operating costs (cogs) of $600,000, days inventory held of 45 and days to collect receivables of 40, the working capital needs calculator shows working capital needed of $90,411.
- Cash conversion cycle
- 55 days
- Tied up in inventory
- $73,973
- Tied up in receivables
- $65,753
- Financed by payables
- $49,315
The formula
Cash conversion cycle = days inventory + days receivable − days payable. Working capital need = (annual COGS ÷ 365) × cycle days.
Results are estimates for educational purposes and are not financial advice. Confirm exact figures with your lender, plan administrator or advisor.
Questions about the working capital needs calculator
What is working capital?
The cash a business needs to fund day-to-day operations — chiefly inventory and money owed by customers, offset by what it owes suppliers. Too little starves growth; too much is idle cash.
What is the cash conversion cycle?
The time between paying for inputs and collecting cash from customers. A shorter cycle means less cash tied up and a healthier, more self-funding business.
How can I reduce working capital needs?
Collect receivables faster, hold less inventory, and negotiate longer payment terms with suppliers. Each shortens the cycle and frees cash without borrowing.
Is the Working Capital Needs Calculator free to use?
Yes. Every calculator on FinCalculators is completely free, with no sign-up, login or paywall. You can run as many scenarios as you like.