Freezer Capacity Calculator

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.

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.

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.

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).

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.