Freight calculator
Container capacity estimate.
Geometric capacity is not a guarantee of loading practicality or payload acceptance.
- Calculated locally in your browser
- Free tool
Step 1
Container capacity
Calculations run locally and are not sent anywhere.Theoretical planning estimate — not an operational load plan. Calculations use zero clearance.
Planning guidance
Methodology and guidance
Use this local planning estimate to compare axis-aligned package dimensions and declared quantities. Calculation rules, units, limits, orientations, and rounding remain code-owned.
Last reviewed: Not yet operationally reviewed
How container capacity is calculated
How it works
Use this local planning estimate to compare axis-aligned package dimensions and declared quantities. Calculation rules, units, limits, orientations, and rounding remain code-owned.
Formula and units
Formula and decision logic
For each permitted, door-passable axis-aligned carton orientation, calculate counts along internal length, width, and height, then apply the lower of geometric, weight, and supplied-quantity limits.
Units and rounding
Package inputs can use cm/kg or in/lb; container planning dimensions and results are converted to cm/kg. Counts are whole cartons and theoretical volume use is shown to one decimal place.
Assumptions
Assumptions
- Inputs describe regular rectangular packages and planning dimensions.
Equipment, door and loading review
Results are not quotations, load plans, safety approvals, or carrier acceptance decisions.
What this result does not confirm
Limitations
- Results are not quotations, load plans, safety approvals, or carrier acceptance decisions.
Planning example
- Carton: 40 × 30 × 20 cm
- Declared internal dimensions and door opening
- Cargo weight and quantity cap
Only permitted orientations that pass the entered door opening are considered in the theoretical count.
Supporting TGC Signal guide
Review status: Pending operational review — theoretical planning estimate only.
Source references: None approved for publication yet.