Free Stock Turnover Ratio Calculator
Find out how fast your inventory sells, with days-to-sell and a plain-English read on whether it's low, healthy, or high. No signup, no cost, nothing sent to a server.
≈ 76 days to sell through your average stock at this rate. Inventory is moving at a solid, sustainable pace for most retail and warehouse businesses.
Typical turnover benchmarks vary widely by industry (e.g. grocery vs furniture) — use this as a trend indicator over time rather than an absolute target.
How to use it
- 1Enter your COGS
Cost of Goods Sold for the period you're measuring.
- 2Enter beginning and ending inventory value
The dollar value of your inventory at the start and end of that same period.
- 3Choose your period length
Monthly, quarterly, or annually — this is used to calculate days to sell.
- 4Read your ratio and interpretation
See your stock turnover ratio, days to sell inventory, and whether it's trending low, healthy, or high.
What is stock turnover ratio and why it matters
Stock turnover ratio measures how many times you sell through your average inventory over a given period. It turns raw COGS and inventory-value numbers into a single metric that tells you, at a glance, whether products are moving or sitting on shelves.
A low ratio is a signal to look for overstocking or dead stock — inventory tying up cash that isn't converting into sales. A very high ratio can mean the opposite problem: you may be understocking and risking stockouts, which cost you sales just as surely as excess inventory costs you cash.
Either way, turnover ties directly into cash flow. Slow turnover means cash is parked in inventory instead of funding growth; fast turnover generally frees that cash up faster — which is why tracking this ratio over time, not just as a one-off snapshot, is what actually helps you run a healthier business.
Common questions
It depends heavily on your industry, but as a general trend indicator, an annualized ratio below 4 tends to suggest slow-moving inventory, 4–10 is a solid range for most retail and warehouse businesses, and above 10 suggests very fast-moving stock. Compare your own ratio over time rather than against a single universal number.
More free tools for your business
Pair this with the Reorder Point Calculator to decide when to reorder, or the Markup & Margin Calculator to price what you sell.
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Generate CODE128, EAN-13, UPC-A, and CODE39 barcodes or QR codes and download as PNG/SVG — free, no signup.
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Calculate your reorder point, safety stock, and economic order quantity (EOQ) — free, no signup.
Open toolMarkup & Margin Calculator
Calculate selling price, margin %, markup %, and profit per unit — free, no signup.
Open toolInvoice Generator
Create a professional invoice and download it as a PDF — free, no signup, nothing saved on a server.
Open toolManually pulling COGS and inventory numbers to calculate this?
Stocky tracks stock value and turnover automatically across every warehouse — install it for your own store, or launch it as your own SaaS platform.