Finance · Free tool
Working Capital Calculator
WC = Receivables + Inventory − Payables. CCC = Days you wait between paying suppliers and receiving from customers. Lower CCC means you don't need as much working capital tied up.
How the formulas work
Working Capital = Receivables + Inventory − Payables. The Cash Conversion Cycle adds the timing view: CCC = DSO (Days Sales Outstanding) + DIO (Days Inventory Outstanding) − DPO (Days Payables Outstanding). A positive CCC means cash is locked up; negative CCC (think Flipkart marketplace, BigBasket model) means suppliers fund your inventory.
Worked example
A Surat textile trader doing ₹6 crore annual turnover has DSO of 75 days (large buyers take time to pay), DIO 60 days (fabric stock), DPO 40 days (yarn suppliers). CCC = 75 + 60 − 40 = 95 days. Daily revenue ≈ ₹1.64 L, so working capital tied up ≈ ₹1.56 cr. With Section 43B(h) forcing MSME payables within 45 days from FY 2024-25, DPO drops to 40 → 30, lifting CCC to 105 days and the cash gap to ~₹1.72 cr — usually plugged by a CC limit or invoice discounting at 9–11%.
When to use this
- Preparing a CC / OD limit application to a bank or NBFC
- Budgeting for a festive-season inventory build-up
- Negotiating supplier credit terms — adding 15 days DPO saves real cash
- Spotting receivables creep that signals customer payment issues
Pair with the loan eligibility calculator for funding sizing, or the GST invoice generator to accelerate billing — the simplest lever for reducing DSO.
FAQ
High WC — bad?
Yes — capital tied up in receivables / inventory could earn 10-15% elsewhere. High WC also means high CCC (cash conversion cycle) = liquidity risk.
How to reduce WC?
Faster invoicing + offering early-payment discount (cuts DSO). Just-in-time inventory (cuts DIO). Negotiate longer payment terms with suppliers (raises DPO). Each day saved = real cash.
Negative WC — possible?
Yes — supermarkets, e-commerce. Customer pays at billing, supplier paid 30-60 days later. Working capital is negative; suppliers fund the operation. Powerful, but risky if scaling fast.