Inventory Turnover Calculator Widget
Embed an inventory turnover calculator in a retail, wholesale or supply-chain article. Readers enter cost of goods sold and beginning and ending stock (or an average) and get the turnover ratio, days of inventory, and how much stock a target number of turns allows.
Live preview
Under the widget on your page: Powered by A2Z Tools
Embed code
<iframe src="https://a2z.tools/embed/w/inventory-turnover-calculator" title="Inventory Turnover Calculator by A2Z Tools" width="100%" height="800" style="border:0;width:100%" loading="lazy" allow="clipboard-write"></iframe>
A plain iframe. Works everywhere, including site builders that strip scripts. Adjust height if your content needs more room.
<div data-a2z-widget="inventory-turnover-calculator" data-height="800"></div> <script async src="https://a2z.tools/embed.js"></script>
Adds a small script (what it does) that sizes the widget to fit its content, loads it lazily and keeps it isolated from your page's CSS.
Works with
How it works
Turnover compares what flowed out of stock during a period with what was typically held. The widget averages beginning and ending inventory (or takes an average you already have) and divides cost of goods sold by it; both figures are at cost, which is why COGS is used rather than sales revenue. Days inventory outstanding converts the ratio into time: days in the period divided by the turns, on a 365-day calendar, a 360-day banking year, a 90-day quarter or a 30-day month. The optional target works backwards: average inventory allowed = COGS / target turns, and the difference from today's average is the stock to release or the extra needed. With 1,200,000 COGS and inventory moving from 180,000 to 220,000, turnover is 6 and DIO is 60.8 days; 8 turns would need 150,000 on average.
Calculation method
- Average inventory = (beginning inventory + ending inventory) / 2, or as entered
- Inventory turnover = cost of goods sold / average inventory
- Days inventory outstanding (DIO) = days in period / turnover = average inventory / COGS x days
- Target average inventory = COGS / target turnover; stock to release = current average - target average
Worked examples
Annual figures
Inputs: COGS 1,200,000; beginning 180,000; ending 220,000; 365 days; target 8
Result: 6 turns; DIO 60.8 days; target average inventory 150,000; stock to release 50,000
200,000 average inventory.
Banking-year basis
Inputs: COGS 500,000; average inventory 125,000; 360 days; target 8
Result: 4 turns; DIO 90 days; target average inventory 62,500 (45 days)
Halving the stock doubles the turns.
An illustration for analysis and planning, not accounting or financial advice.
Limitations
- A two-point average can mislead for seasonal businesses; an average of monthly balances is better.
- Company-wide turnover hides slow and fast items; analyse by product line or SKU for decisions.
- Inventory valuation (FIFO, weighted average, write-downs) changes the ratio between companies.
Where publishers use it
- Retail and e-commerce blogs benchmarking a store's stock against sales
- Small-business accounting guides that explain the turnover ratio and DIO
- Wholesaler and distributor dashboards in a working-capital article
- Supply-chain courses linking turns to the cash tied up in stock
- Investor-education pages comparing retailers' annual report figures
Questions
How do you calculate inventory turnover?
Divide cost of goods sold by average inventory. 1,200,000 COGS over an average of (180,000 + 220,000) / 2 = 200,000 gives 6 turns a year.
What are days inventory outstanding?
The average number of days stock is held: days in the period / turnover. At 6 turns on a 365-day year that is 60.8 days; on a 360-day basis it would be 60.0.
Why use COGS and not sales?
Inventory is carried at cost, so dividing sales (which include the markup) by inventory overstates the ratio. With a 40% gross margin, sales of 2,000,000 against 200,000 of stock would suggest 10 turns when the true figure is 6.
What is a good turnover ratio?
It depends on the sector: grocery and fresh food turn far faster than furniture, jewellery or spare parts. Compare against your own history or peers in the same industry rather than a universal number.
How much stock can I hold for 8 turns?
Divide COGS by the target: 1,200,000 / 8 = 150,000 average inventory, or 45.6 days of stock - 50,000 less than an average of 200,000.
Can I calculate it for a month or a quarter?
Yes. Enter that period's COGS and choose 30 or 90 days. The turnover is then per month or per quarter; multiply by 12 or 4 for a rough annual figure.
Why does faster turnover free up cash?
Every unit sitting on a shelf ties up working capital and attracts holding costs - warehousing rent, insurance, shrinkage, spoilage and obsolescence. Cutting average stock from 200,000 to 150,000 at the same COGS releases 50,000 of capital, provided service levels and safety stock still cover demand.
Can turnover be too high?
Yes. Very lean stock raises the risk of stockouts, lost orders, expedited freight and missed supplier volume discounts. Seasonal merchandise, perishables and slow-moving spare parts each warrant a different target.
Cite or recommend this tool
If you reference this tool in an article, course or documentation, these formats are ready to copy. They are optional - nothing is added to your site unless you paste it.
A2Z Tools Inventory Turnover Calculator https://a2z.tools/embed/inventory-turnover-calculator
<a href="https://a2z.tools/embed/inventory-turnover-calculator">A2Z Tools Inventory Turnover Calculator</a>
[A2Z Tools Inventory Turnover Calculator](https://a2z.tools/embed/inventory-turnover-calculator)
Inventory Turnover Calculator by A2Z Tools - https://a2z.tools/embed/inventory-turnover-calculator
Related widgets
-
Total and per-unit landed cost of an import: goods, freight, insurance, duty, import VAT/GST and fees.
-
Profit, gross margin and markup from cost and price - or the price for a target margin.
-
Units and revenue needed to cover fixed costs, plus the sales needed for a profit target.
-
Selling price from cost plus markup, or work back to the cost or the markup you applied.
-
Dimensional and chargeable weight of a parcel with UPS, FedEx, USPS, DHL Express, IATA or custom divisors.
-
Carton shipment volume in m³ and ft³, gross weight, and how full a 20' or 40' container would be.