Supply Chain Inventory Tools

Make smarter inventory decisions in seconds

Supply Chain Inventory Tools puts three essential supply chain calculators in one clean, fast app, so you always know how much stock to hold, when to reorder, and how efficiently your inventory is moving.

WHAT'S INSIDE

• Inventory Coverage
See how many days your current stock will last (days of supply), your reorder point, and exactly when to place your next order. Get instant alerts when stock is running low or overstocked.

• Economic Order Quantity (EOQ)
Find the order size that minimizes your total ordering and holding costs, plus how many orders per year and the days between them.

• Inventory Turnover & DIO
Measure how many times your inventory cycles per year and the average Days Inventory Outstanding, so you can spot slow movers and free up working capital.

WHY YOU'LL LIKE IT

• Instant results as you type, no buttons, no waiting
• Clear, colour-coded insights: healthy, low, or overstocked
• Choose from 130+ currencies
• Works completely offline
• No account required
• No ads
• Collects zero personal data. Everything stays on your device

BUILT FOR

Supply chain and operations professionals, warehouse and inventory managers, procurement and purchasing teams, small business owners, retail and e-commerce sellers, and students learning inventory management, anyone who wants quick, reliable inventory maths without building a spreadsheet.

Free, from Optymara.

Note: Results are estimates to support your decisions and do not constitute professional or financial advice.