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How big is the trunk of the Lexus IS 300h?

Approximately 450 liters (about 16 cubic feet) of cargo space with the rear seats up, and substantially more when the rear seats are folded down.


For a compact luxury sedan, trunk size matters for everyday errands and travel. The Lexus IS 300h, a hybrid variant of the IS line, offers a practical boot with a 60/40-split rear bench that can expand cargo space when needed. Here's what you need to know about its trunk dimensions and real-world loading.


Official capacity figures


Note: figures can vary by market and by equipment level. The following numbers reflect typical EU/UK specs and similar configurations for the IS 300h.



  • With the rear seats up: about 450 liters (roughly 16 cubic feet).

  • With the rear seats folded (60/40 split): up to around 1,150–1,200 liters, depending on seat configuration and whether a full-size spare is present.


These values give a practical sense of how much cargo you can carry in everyday use. Always verify exact numbers for your exact market and model year in the official brochure.


Practical loading considerations


Load space can vary slightly depending on equipment such as spare tire vs. repair kit, floor configuration, and whether the car has a subfloor for equipment. The IS 300h's trunk sits on a flat floor, with a wide opening to help with loading larger items when the rear seats are folded.


Spare-wheel vs. repair kit impact


Some markets equip the IS 300h with a puncture repair kit instead of a full spare. In those configurations, the subfloor may differ, which can slightly alter usable space, especially when the rear seats are folded.


Market differences


Trunk capacities can vary by market due to different standard equipment, spare wheel choices, and measurement conventions. If exact figures are important, consult the official Lexus data for your specific country and model year.


Summary


In summary, the Lexus IS 300h offers about 450 liters of trunk space with the rear seats up, expanding to roughly 1,150–1,200 liters with the rear seats folded. Real-world loading varies with equipment and seat configuration.

How much luggage space IS on the Lexus IS300H?


The Lexus IS300H Sedan has a boot space size of 450 litre.



How big IS the trunk of the Lexus IS?


The Lexus IS has a trunk space of 10.8 cubic feet, which is on the smaller side for its luxury compact car class. While the rear seats fold down in a 60/40 split, they do not lie completely flat, which can limit the usability of the added space. Despite the small volume, the trunk opening is wide, which can make it more practical for fitting certain items, such as golf clubs.
 
This video shows a trunk space test of the Lexus LBX, which is similar to the Lexus IS: 57sTop Gear PhilippinesYouTube · Jun 5, 2025
Trunk space details

  • Volume: 10.8 cubic feet 
  • Capacity: Adequate for the segment but not enormous, and one of the smallest in its class 
  • Rear seats: Fold in a 60/40 split, but they do not lie completely flat 
  • Usability: Can be challenging for bulky packages due to the trunk opening size, but it is wide, which helps with fitting items like roller boards or slightly longer items 
  • Hybrid models: Specific models, like the IS 300h, may have even less space due to the hybrid battery 



What are the common problems with the IS 300h?


Problem: The IS300 is known for being heavy on the clutch. If you have found that the biting point on the clutch is very high, then this is an indication that the clutch is about to fail.



What are the dimensions of the Lexus 300h?


The dimensions for the Lexus ES 300h are approximately 195.9 inches long, 73.4 inches wide, and 56.9 inches high, with a 113.0-inch wheelbase. The IS 300h is smaller, with dimensions of 4,680 mm long (about 184.3 inches), 1,810 mm wide (about 71.3 inches), and 1,430 mm high (about 56.3 inches).
 
Lexus ES 300h

  • Length: 195.9 inches
  • Width: 73.4 inches
  • Height: 56.9 inches
  • Wheelbase: 113.0 inches
  • Cargo volume: 13.9 cubic feet 

Lexus IS 300h
  • Length: 4,680 mm (approx. 184.3 inches)
  • Width: 1,810 mm (approx. 71.3 inches)
  • Height: 1,430 mm (approx. 56.3 inches)
  • Wheelbase: 2,800 mm (approx. 110.2 inches) 


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.