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Free Inventory, Stock & Reorder Calculator

Know What to Reorder, When to Reorder It and How Much Cash Your Stock Is Consuming.

For retailers, wholesalers, distributors, importers and manufacturers that need better control over stock cover, reorder timing, safety stock, dead stock, stock-outs and working capital.

Open the Inventory ToolkitSee What It Covers
RetailersPrevent stock-outs without carrying unnecessary stock.
WholesalersPlan reorder points and purchase quantities across fast-moving items.
ImportersConnect long supplier lead times to safety stock and reorder timing.
ManufacturersManage raw materials, consumables, spares and finished goods.

Inventory management toolkit

From Stock on Hand to the Next Purchase Order.

Inventory Dashboard

Stock value, cover, safety stock, reorder point, excess stock and reorder timing.

Reorder Point

Know the stock level that should trigger the next supplier order.

Safety Stock

Build a buffer for demand peaks and supplier delays.

Economic Order Quantity

Balance ordering cost and inventory holding cost.

Stock Cover

See how many days or weeks current inventory should last.

Inventory Turnover

Calculate turnover and days inventory outstanding.

Slow / Dead Stock

Measure cash tied in slow-moving and obsolete inventory.

Stock-Out Loss

Estimate units, revenue and contribution lost when inventory is unavailable.

Overstock Cost

Calculate cash tied up plus carrying and obsolescence cost of excess inventory.

Purchase Planning

Calculate how much to buy after current stock, open orders and safety stock.

ABC Analysis

Rank inventory items by annual usage value and classify A, B and C items.

Astute Inventory, Stock & Reorder Management Toolkit

Know What to Reorder, When to Reorder It and How Much Cash Your Stock Is Consuming.

Built for retailers, wholesalers, distributors, importers, manufacturers and any business that carries stock. Calculate reorder point, safety stock, stock cover, EOQ, turnover, slow-moving stock and stock-out losses.

Current inventory item

My Stock Item

Set the product, SKU, supplier and currency once.

Complete stock position

See stock cover, reorder timing, working capital and inventory risk in one place.

Enter current stock, demand, lead time and unit cost. The dashboard estimates when to reorder, how long stock will last and how much cash is tied up.

Current stock & demand

Cost & margin

Reorder point

Know the stock level that should trigger the next purchase order.

Safety stock

Build a buffer for demand spikes and supplier delays.

Economic order quantity

Estimate an economical purchase quantity by balancing ordering and holding cost.

Stock cover

See how many days or weeks current stock should last.

Inventory turnover

Measure how quickly inventory is being sold or consumed.

Slow-moving / dead stock

See how much cash is trapped in stock that is not moving.

Stock-out loss

Estimate sales and contribution lost when an item is unavailable.

Overstock cost

See what excess stock costs in cash and annual carrying expense.

Purchase planning

Estimate how much to order for the next planning period.

ABC inventory analysis

Rank inventory items by annual usage value.

Add each item's annual quantity used or sold and unit cost. The tool ranks items by annual usage value and groups them into A, B and C classes.

Inventory items

A items carry the highest annual value and normally require the tightest control.

Why inventory discipline matters

Too Little Stock Loses Sales. Too Much Stock Locks Up Cash.

Inventory management is a working-capital decision as much as a warehouse decision. Every extra unit held consumes cash, while every stock-out can cost sales, contribution and customer trust.

The toolkit connects demand, supplier lead time, safety stock, unit cost and selling price so purchasing decisions can be based on actual business economics rather than intuition.