Tool directory

Free inventory and purchasing tools

Use one focused calculation at a time, or start with the Reorder Planner for a combined replenishment view. Every working tool processes inputs locally in your browser; this static site does not upload calculator values.

Prefer working in a spreadsheet? Download the SKU replenishment worksheet (CSV).

Selling context

Choose your selling platform

StockPilot does not connect to platforms or import data. Choose a context to prioritize the most relevant starting tool and clarify which values to enter.

Calculations are channel-neutral. Use values for the inventory pool and demand you are planning.

Replenishment Planning

Reorder Planner

Use when you need one view of on-hand stock, confirmed inbound timing, reorder status, target coverage, MOQ, and case packs.

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Replenishment Planning

Bulk Inventory Planner

Upload a CSV of SKUs to review stockout timing, reorder points, and order quantities for the whole list at once, processed locally in your browser.

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Inventory Health

Safety Stock Calculator

Use when you want a conservative planning buffer from maximum versus average demand and lead-time inputs.

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Replenishment Planning

Reorder Point Calculator

Use when you need the stock threshold that should trigger a replenishment review under your own policy.

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Inventory Health

Stockout Date Calculator

Use when you need an on-hand runout estimate and a timing check for confirmed inbound inventory.

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Inventory Health

Inventory Turnover Calculator

Use when you need annualized turns and average days of inventory from COGS and average inventory value.

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Purchasing & Cost

Purchase Order Quantity Calculator

Use when you need a net order estimate after projected inventory, target coverage, MOQ, and case-pack constraints.

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Purchasing & Cost

EOQ Calculator

Use when you need a benchmark order size that balances annual ordering cost against annual holding cost.

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Purchasing & Cost

Landed Cost Calculator

Use when you need the true per-unit cost of a shipment after freight, duty, insurance, and receiving fees.

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Purchasing & Cost

Inventory Holding Cost Calculator

Use when you need the annual cost of holding stock from average inventory value and capital, storage, insurance, and shrinkage rates.

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Purchasing & Cost

Cash Tied Up in Inventory Calculator

Use when you need the cash locked in sellable stock at cost and how many days of sales it covers.

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Choose inputs deliberately. Confirm whether sales are shipped, ordered, or net of cancellations; define lead time through sellable availability; and only treat inbound as usable when its arrival is confirmed for your planning policy. Read the planning basics.

More ideas

Under consideration, not available calculators

No further calculators are planned right now. The working tools above cover the full replenishment and purchasing loop.