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This calculator works best on a computer or laptop.

🛒 What Is Open-to-Buy (OTB)?

Open-to-Buy (OTB) is a forward-looking budgeting method that helps retail and ecommerce businesses determine how much inventory to purchase over a future period—typically monthly or quarterly.
 

In essence, it answers the question:

“How much inventory can I buy this month while staying aligned with my sales plan and cash flow goals?”
 

Rather than simply reacting to what’s selling, OTB equips you with a proactive plan that aligns purchasing with your financial strategy.

Open-to-Buy Calculator

User instructions

  1. Enter Planned Sales for each of the next 12 months.

  2. Enter one Gross Profit Margin % (e.g., “40” for 40 %).

  3. Enter your Current Inventory value at cost.

  4. Click Calculate (or simply edit a value—results refresh live).

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