Multi-location inventory tool

Transfer vs purchase calculator

Compare an internal stock transfer with a supplier purchase using direct cost and expected availability.

This calculator compares the entered cost of moving available stock from another location with the entered cost of purchasing the same units. It also shows which option arrives sooner. It does not price the stockout risk at the source location.

Internal transfer

Supplier purchase

Comparison

Transfer cost$580
Purchase cost$4,630
Lower direct costTransfer

Difference: $4,050

Faster optionTransfer

2 days

01

Formula used

Transfer cost = transport + handling + other transfer cost. Purchase cost = units × supplier unit cost + inbound freight + other purchase cost.

Before transferring, confirm that the source location can release the stock without creating a more expensive shortage.

02

Use it when

  • A location is at risk of stockout while another has available inventory
  • Supplier lead time is longer than the internal transfer time
  • Teams need a transparent first-pass cost comparison

03

How to interpret the result

  • The lower direct cost is not always the better operational decision.
  • Availability time matters when a delayed sale or service event has a cost.
  • Protect the source location with its own demand and safety-stock policy.

Frequently asked questions

What costs should be included in a stock transfer?

Include transport, handling at both locations, packaging, documentation, and any other direct transfer cost relevant to the decision.

Why compare availability time as well as cost?

The cheaper option can still create a stockout if it arrives after the required date.

Does the calculator account for source-location risk?

No. Confirm available-to-transfer stock after demand, commitments, and safety stock at the source location.