Inventory Calculator
Value the stock you hold. List each item with its quantity, unit cost and, optionally, its sale price. The calculator shows the value of each line and the total inventory at cost, the retail value and the potential gross profit if everything sells at full price, the number of units and the average cost per unit.
- Runs in your browser
- No sign-up
- Free to use
The sale price is optional.
How to use Inventory Calculator
- List each item: name | quantity | unit cost | sale price.
- Leave out the sale price if you only need cost.
- Read the total at cost and retail.
- Use the result for stock counts and insurance.
Inventory Calculator features
Cost and retail value
Both totals.
Potential profit
And margin.
Per-line values
Quantity × cost.
Average unit cost
Across all items.
Paste from spreadsheets
Tab or | separated lines.
Any currency
Choose from 30+ currencies; amounts are formatted for it.
When to use Inventory Calculator
- Year-end stock counts.
- Insurance valuations.
- Small shop and market stock.
- Checking capital tied up in stock.
Inventory Calculator FAQ
Which cost should I use?
The price you paid per unit including delivery to you. Accounting methods such as FIFO or weighted average can change the figure.
Why is retail value higher?
It is what the stock would bring in if sold at full price, before discounts and losses.
Can I paste a spreadsheet?
Yes, tab-separated columns work.
Does it track stock movements?
No. It values a snapshot of stock.
Why stock value matters
Inventory is money waiting to be turned back into cash. Knowing its value at cost tells you how much capital is tied up; the retail value shows what it could become.
Lines with high value but slow sales are candidates for promotions or smaller reorders. Use the Inventory Turnover Calculator to see how quickly stock sells.
Re-run the numbers whenever an input changes – a supplier raises prices, a fee is updated or demand shifts – because small changes in costs or volumes often have a large effect on the result.
The calculator is deliberately simple: it uses the figures you enter and shows the arithmetic, so you can follow every step and repeat it in a spreadsheet when you want to build a fuller model.