See how fast you sell through stock — your inventory turnover ratio and the average days inventory sits on the shelf.
Use inventory at cost, not retail. Higher turnover ties up less cash but risks stockouts; the right level depends on your industry and lead times. Estimate only.
Turnover is how many times you sell and replace your average inventory in a year. Higher turnover frees up cash and reduces spoilage and obsolescence; too high can mean lost sales from stockouts.
Turnover = COGS ÷ average inventory · Days on hand = 365 ÷ turnover
Highly industry-dependent — grocery turns very fast, furniture slowly. Track your own trend and compare within your sector.
Use COGS, matched to inventory at cost. Using revenue overstates turnover because it includes your markup.
Related: inventory tracker · gross profit calculator · ecommerce profit calculator · all free calculators.
More free business metrics tools — no signup, works on any device.
Yes. The Inventory Turnover Calculator is completely free, runs in your browser, and never asks for a signup, email, or download. Enter your numbers and the result updates instantly.
It uses standard formulas and recalculates the moment you change a value, so the math is exact for the inputs you enter. Treat the result as a reliable planning estimate; for decisions with legal or tax consequences, confirm the figures with a qualified professional.
Yes. The calculator is mobile-friendly and works on any phone, tablet, or computer — there is no app to install and nothing to save.
Yes. Scroll to “Add this free calculator to your site” above and copy the embed snippet to place the live calculator on your blog or website for free.
Last reviewed: September 2026. Free to use, no signup — Inventory Turnover Calculator by ToolWise Digital.
Copy the snippet to embed the live calculator on your blog or website — free for any site. The small “Calculator by ToolWise Digital” credit line keeps it free; you're welcome to remove it, but we appreciate you leaving it.
Ready-made Google Sheets & Excel trackers for money, taxes, and small business — each with a free phone version.
Browse the shop →Subscribe and we'll email you our Simple Monthly Budget (Google Sheets & Excel, plus a phone version) — free. Then the occasional short note on pricing, bookkeeping, and the money side of a small business. No spam — unsubscribe anytime.