Calc4Living

Moving & Storage · Free calculator

Storage Space Calculator

Add item dimensions and quantities to estimate storage volume and a separate floor-area approximation.

Your moving inputs

Prefilled values are editable examples. All fields are required unless marked optional. Results clear when inputs change.

Changing units converts current lengths, areas and volumes. 1 ft = 0.3048 m; area and volume use squared and cubed factors.

Each item group contains identically sized packed items. Zero dimensions or quantity contribute zero volume. Up to 50 groups.

Your estimate

Moving & storage estimate

Review the example assumptions, enter your values and calculate.

How much storage space do my items need?

Item volume = sum(length × width × height × quantity). Required storage volume = item volume ÷ (packing efficiency/100). Approximate floor area = required volume ÷ usable stacking height.

Worked example

Two items measuring 1 × 1 × 1 m total 2 m³. At 80% packing efficiency, allow 2.5 m³ (88.2867 ft³). At 2 m usable stacking height, the volume-based floor-area approximation is 1.25 m².

Assumptions & limitations

  • Volume (m³ or ft³) is not floor area (m² or ft²). The floor estimate assumes uniform usable stacking height; it is not a unit layout or guaranteed fit.
  • Enter packed external dimensions. Irregular shapes, fragile or nonstackable items, aisles, doors and access may require more space. Lower efficiency reserves more empty space; do not add the same allowance twice.