Cell Therapy & Gene Therapy Equipment worked example

Cryostorage Capacity at 69% expected freezer availability: a worked example

Suppose expected freezer availability falls to 69%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate usable cryogenic storage capacity for cryobags, vials, cassettes, or patient-specific inventory.

The inputs for this scenario

  • Qualified cryo positions per storage unit: 3,200 cryo units / freezer (held at the documented default)
  • Available cryogenic storage units: 6 freezers (held at the documented default)
  • Expected freezer availability: 69 % (the input this scenario stresses; the baseline uses 96)
  • Usable slot factor after segregation: 82 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross qualified cryostorage positions = qualified positions per unit × available storage units.
  • Usable cryostorage capacity works out to 10,863 cryo units at these inputs, and this is the headline figure for the scenario.
  • Gross qualified cryostorage positions works out to 19,200 cryo units at these inputs.
  • Storage positions unavailable works out to 5,952 cryo units at these inputs.
  • Positions reserved or segregated works out to 2,385 cryo units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected freezer availability sits at 96% and the headline result is 15,114 cryo units, this scenario comes in 28.13% below the baseline at 10,863 cryo units.
  • It computes usable cryostorage positions by taking gross qualified slots across all freezers and discounting them for freezer availability and a usable-slot factor after segregation. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Usable cryostorage capacity: 10,863 cryo units (headline result)
  • Gross qualified cryostorage positions: 19,200 cryo units
  • Storage positions unavailable: 5,952 cryo units
  • Positions reserved or segregated: 2,385 cryo units

Run it with your numbers

  • To rerun this with your own numbers, open the live Cryostorage Capacity calculator, set expected freezer availability to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.