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For most small sellers, the stock on the shelf is the largest pool of cash after the bank account — yet few can name its value within 20%. This calculator asks you to count what you actually hold, at what it actually cost you, across up to four products, and returns three numbers that matter: total units, total value at cost, and average unit cost. Valuing at cost rather than retail keeps the picture honest, because retail value flatters dead stock. The total is your early-warning system: when inventory value drifts above roughly three to four months of sales, cash is quietly parking itself on shelves instead of funding your next move.
Add up to four products with the units on hand and what each unit cost you — the calculator totals your inventory value, unit count and average cost so you can see how much cash is sitting on your shelf.
Because inventory is an asset you paid for, and assets are counted at what they cost — valuing at retail makes a shelf of unsold goods look like a bank balance. Cost value tells you what cash is trapped; retail value tells you a fairy tale.
Value them honestly: dead stock is not worth full cost. Discount it by 30-70% in your own mental maths, then either clear it for cash or treat it as a lesson. A shelf of unsold stock is a savings account paying negative interest.
Monthly for anything you actually sell, and after every market or fair. System counts drift from reality through theft, damage and miscounts — the physical count is the truth the numbers should follow.
Every tool answers instantly from our own knowledge and calculators — no AI wait, no account. Want the deeper, personalised version? Each has a $2.95 full report.