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Vending Machine Restock Calculator

Work out vending machine restock instantly with clear inputs, formula shown and shareable results.

About Vending Machine Restock Calculator

Restock frequency is usable capacity divided by daily sales, where usable capacity excludes the safety minimum you never want to fall below. Because each visit has a fixed travel cost, machine capacity is really an investment in reduced service frequency.

Formulas

Usable stock

Usable = Capacity x (1 - Minimum stock %)

Days between restocks

Days = Usable stock / Average daily sales

Worked example

With the default values below, Vending Machine Restock Calculator returns Days between restocks of 7.24. Change any input above and every figure here is recalculated in your browser.

Inputs used

Machine capacity
380
Average daily sales
42
Minimum stock level before restocking
20
Cost per restock visit
450

Results

Days between restocks
7.24
Units loaded per restock
304
Restock visits per year
50.4
Annual restock travel cost
$22,692.43

Step by step

  1. 1Values used
  2. 2Usable stock
  3. 3Days between restocks
  4. 4Days between restocks= 7.24
  5. 5Units loaded per restock= 304
  6. 6Restock visits per year= 50.4
  7. 7Annual restock travel cost= 22,692.43

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why keep a minimum stock level?

Because a machine that sells out stops earning and disappoints customers, and sales rates vary day to day. A 20% floor absorbs that variability.

Does telemetry help?

Considerably. Demand-based routing rather than fixed schedules typically cuts visits by 20-30% while reducing sell-outs.

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