Lean Manufacturing & Operations worked example

Kanban Bin Quantity with average daily usage of 250 units/day: a worked example

What does the result look like when average daily usage reaches 250 units/day? The full calculation is worked below with real intermediate numbers. Use this calculator to determine the right bin or container size for your kanban system. Properly sized bins prevent both stockouts and excess floor inventory.

The inputs for this scenario

  • Average daily usage: 250 units/day (raised for this scenario; the documented default is 100)
  • Replenishment frequency: 2 times/day (unchanged)
  • Buffer multiplier: 1.2 x (unchanged)

Working through the calculation

  • Applying the documented formula (Bin Quantity = (Daily Usage / Replenishment Frequency) x Buffer Multiplier) to the inputs above produces each figure below.
  • At this operating point the engine returns 150 units for bin quantity (units per container), the number this scenario is built around.
  • At this operating point the engine returns 125 value for raw ratio.
  • At this operating point the engine returns 1.2 x for conversion factor.
  • At this operating point the engine returns 2 value for replenishment frequency.

How this compares with the baseline

  • Against the tool's baseline example, where average daily usage sits at 100 units/day and the headline result is 60 units, this scenario comes in 150% above the baseline at 150 units.
  • A figure at this level is achievable when average daily usage is genuinely sustained, not just peaked for a shift. It assumes deliveries are evenly spaced through the day; bursty or batched replenishment needs a larger buffer than the multiplier alone provides.

Results at a glance

  • Bin quantity (units per container): 150 units (headline result)
  • Raw ratio: 125 value
  • Conversion factor: 1.2 x
  • Replenishment frequency: 2 value

Run it with your numbers

  • Every input above is editable in the live Kanban Bin Quantity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.