Cold Chain Storage Capacity Calculator

Work out cold chain storage capacity instantly with clear inputs, formula shown and shareable results.

About Cold Chain Storage Capacity Calculator

Compares the packed volume of the doses to be stored with the usable share of a refrigerator's net volume, since airflow and stacking rules prevent full loading.

Formula

Cold chain capacity

Required litres = doses x packed volume per dose (cm3) / 1000; usable litres = net volume x usable share

Worked example

With the default values below, Cold Chain Storage Capacity Calculator returns Storage volume required of 12.50. Change any input above and every figure here is recalculated in your browser.

Inputs used

Net refrigerator volumeaccepts 1–2,000 L: 50 L
Packed volume per doseaccepts 0.2–50 cm3: 2.5 cm3
Doses to storeaccepts 1–500,000: 5,000
Usable share of the net volumeaccepts 20–90: 60

Results

Storage volume required: 12.50 L
Usable storage volume: 30.00 L
Doses that fit: 12,000
Verdict: Capacity is sufficient

Step by step

1Values used
2Cold chain capacity
3Storage volume required= 12.50 L
4Usable storage volume= 30.00 L
5Doses that fit= 12,000
6Verdict= Capacity is sufficient

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, fees or charges 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 is only part of the volume usable?

WHO guidance requires air gaps for circulation and keeps vaccines away from walls and the freezer compartment.

What is packed volume per dose?

The volume a dose occupies including its secondary packaging, published in WHO vaccine volume tables.