Net Working Capital Formula

Home › Finance Formulas › Net Working Capital Formula

Net Working Capital Calculator

Net working capital is the difference between a company’s current assets and its current liabilities. Where the current ratio expresses short-term liquidity as a ratio, net working capital expresses it in money: the cushion of short-term resources left over after meeting all short-term obligations.

How to use the formula

Positive working capital means current assets could cover current liabilities with something to spare. Negative working capital means the business relies on future sales or new funding to pay its bills, although some businesses with very fast inventory and immediate customer payment, such as supermarkets, operate that way by design.

Changes in working capital matter as much as the level. A growing business usually needs more inventory and receivables, so working capital absorbs cash even when the business is profitable; this is why cash flow forecasts include the change in net working capital. In the example, 250,000 of current assets minus 125,000 of current liabilities leaves 125,000 of net working capital, with a current ratio of 2.0. To see how long that capital stays tied up, use the cash conversion cycle.

Frequently asked questions

What is the net working capital formula?

Net working capital = current assets − current liabilities.

Can working capital be negative?

Yes, when current liabilities exceed current assets. That can be a warning sign, or normal for fast-cash businesses.

What is operating working capital?

A narrower measure: (current assets − cash) − (current liabilities − short-term debt), focusing on operations.

Why does working capital affect cash flow?

An increase in working capital uses cash; a decrease releases cash.

Last reviewed: September 26, 2026. Calculations run in your browser and were checked against numpy-financial, SciPy and published spreadsheet examples.