Calculator
Days Sales of Inventory Calculator
Estimate your days sales of inventory and see how many days of cash each turn releases.
Last updated July 2026
What it measures
Days sales of inventory (DSI) measures how many days it takes to sell the average inventory on hand. Lower is better — it means cash cycles back faster.
Formula
DSI = (Average Inventory ÷ Cost of Goods Sold) × 365 Basis: Phocas Software
Estimates are directional and for planning only; they don't constitute financial advice.
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