A standardized measurement used in RoRo shipping to express vessel capacity relative to a standard-sized passenger car. One CEU equals approximately 9.4 square meters of deck space — the area needed to park a typical sedan.
What is a CEU?
CEU stands for Car Equivalent Unit — the RoRo industry's answer to the container world's TEU (Twenty-foot Equivalent Unit). While every 20-foot container is the same size, vehicles vary wildly. A compact sedan, an SUV, a pickup truck, a bus, and a piece of mining equipment all need different amounts of deck space. CEU gives stowage planners, terminal operators, and shipping lines a common unit to measure, compare, and price vessel capacity.
One CEU equals roughly 9.4 square meters of deck space — the footprint of a standard mid-size sedan (about 4.5m long x 1.8m wide, plus clearance for doors and driving lanes).
Why CEU Exists
Container shipping has it easy: a TEU is a TEU is a TEU. The box is always 20 feet long. RoRo shipping doesn't have that luxury. A vessel rated at "6,500 vehicles" might actually carry 7,200 compact cars or 4,800 SUVs — the headline capacity number is meaningless without knowing the vehicle mix.
CEU solves this by converting every vehicle type to a common denominator. When a shipping line advertises a vessel at 6,500 CEU, you know exactly how much deck space is available — regardless of what actually gets loaded.
CEU Equivalents by Vehicle Type
The conversion factors vary slightly between carriers, but the industry standard runs roughly:
- Standard sedan (Camry, 3-Series) — 1.0 CEU
- Compact car (Corolla, Golf) — 0.8-0.9 CEU
- SUV / Crossover (RAV4, X5) — 1.3-1.5 CEU
- Pickup truck (Hilux, F-150) — 1.5-2.0 CEU
- Van (Sprinter, Transit) — 2.0-2.5 CEU
- Bus / Coach — 5.0-7.0 CEU
- Heavy equipment (excavator, loader) — 8.0-15.0 CEU
This is why stowage planning matters so much. A vessel sailing with 100% SUVs carries 30-50% fewer units than the same vessel sailing with 100% sedans — even though the deck space is identical.
CEU vs RT (Revenue Tons)
CEU measures deck space (area). Revenue Tons measure volume (length x width x height / 3) and are used for pricing. A tall SUV generates more RT than a low sedan — even if the deck footprint is similar — because it prevents the deck above from being lowered. Both metrics matter: CEU for capacity planning, RT for commercial pricing.
How CEU Affects Stowage
Stowage planners think in CEUs when building the vessel loading plan. The goal is to maximize total CEU loaded per voyage, which directly maximizes revenue. This creates constant trade-offs:
A deck of compact cars at 0.9 CEU each packs more units per square meter than a deck of SUVs at 1.4 CEU each. But hoistable decks add another dimension — lowering the deck clearance from 2.5m to 1.7m fits more compact cars but excludes anything taller. The planner must balance utilization across all decks while maintaining vessel stability and respecting multi-port discharge sequences.
In practice, most voyages carry a mixed fleet. The art of stowage planning is fitting the maximum CEU from a heterogeneous cargo list into a fixed number of deck square meters — which is why specialized software (Autoload, AutoCargo) handles the optimization.
CEU in Contracts and Pricing
Shipping line contracts with OEMs are often structured around CEU commitments: an automaker might contract for 200,000 CEU per year on a specific trade lane, giving them guaranteed capacity regardless of the sedan/SUV mix they ship. This insulates the carrier from mix volatility and gives the OEM predictable logistics costs.
Terminal throughput is also measured in CEU per year rather than raw vehicle count, giving a more accurate picture of operational volume. A terminal handling 500,000 CEU/year that shifts from sedans to SUVs will show flat CEU throughput even as unit count drops.
FAQ
What does CEU stand for in shipping?
CEU stands for Car Equivalent Unit — a standardized measurement of RoRo vessel capacity. One CEU equals approximately 9.4 square meters of deck space, roughly the footprint of a standard mid-size sedan. It allows capacity comparison across different vehicle mixes: a vessel rated at 6,500 CEU can carry 6,500 standard sedans, or fewer SUVs/trucks, or a mix.
How is CEU different from TEU?
TEU (Twenty-foot Equivalent Unit) measures container ship capacity in standardized container sizes — every TEU is physically identical. CEU measures RoRo capacity relative to a standard car, but vehicles vary in size, so CEU is a conversion factor rather than a fixed physical unit. A sedan is 1.0 CEU, an SUV is 1.3-1.5 CEU, a bus is 5-7 CEU.
How are RoRo shipping rates calculated — by CEU or Revenue Tons?
Commercial pricing uses Revenue Tons (RT), calculated as vehicle length x width x height divided by 3. CEU is used for capacity planning and contract volume commitments, not directly for pricing. The distinction matters: two vehicles with similar deck footprint (similar CEU) can have different heights, generating different RT values and therefore different shipping rates.