Why is the practical count lower than the maximum?

In practice, you cannot fill a freezer to 100% capacity. Gaps between containers, shelves, drawers, irregular shapes, and the need for air circulation all reduce usable space. We estimate 80% packing efficiency, which is realistic for well-organised freezers.

How do I find my freezer volume?

Check your freezer manual or the label inside the door. The volume is usually given in litres. If you cannot find it, measure the internal dimensions in centimetres (width x depth x height) and divide by 1000 to get litres.

Should I leave space for air circulation?

Yes, freezers work most efficiently when air can circulate. Do not pack them completely full. Leave about 20% free space. This is already accounted for in our practical capacity estimate.

How do I organise my freezer efficiently?

Use uniform, stackable containers. Label everything with the date and contents. Use freezer bags for flat items (they stack well). Keep a freezer inventory list on the door. Group similar items together (meats, vegetables, baked goods, meals).

What is the best way to freeze baked goods?

Cool completely before freezing. Wrap tightly in cling film then foil, or use airtight containers. Label with the date and contents. Most cakes and breads freeze well for 2-3 months. Decorated cakes should be open-frozen first (freeze uncovered for 2 hours) then wrapped once firm. Thaw overnight in the fridge or at room temperature.

BakeCalcs

Freezer Capacity Calculator

Calculate how many portions or containers fit in your freezer by freezer volume and container size.

Freezer Size

Container Size

How We Calculate This

This calculator divides your total freezer volume by the volume of each container to estimate how many will fit. It then applies a practical packing efficiency factor.

The Formula

Maximum containers = Freezer volume / Container volume
Practical containers = Maximum x 0.80 (80% efficiency)

Typical Freezer Sizes

Under-counter freezer: ~30 litres usable
Tall fridge-freezer: ~100 litres usable
Medium chest freezer: ~150 litres usable
Large chest freezer: ~250 litres usable

Frequently Asked Questions

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Last updated: February 2026

All calculations are based on standard ratios and conversions. Results may vary with specific ingredients, equipment, and conditions.