6 Best 18 Inch Dishwashers 2025 in the United States

The SPT SD-9254SSA is an 18-inch wide built-in dishwasher, making it a good fit for smaller kitchens or spaces where a full-size model may not be practical. It offers a capacity of 8 place settings, which is suitable for small households or couples. This dishwasher is ENERGY STAR certified, meaning it meets or exceeds federal guidelines for energy efficiency, potentially saving you money on your energy bill.

Additionally, it has a stainless steel tub, which is durable and resistant to staining, ensuring longevity and cleanliness. The noise level is 52 dB, which is relatively quiet but may still be noticeable in a very silent environment. It includes 6 wash cycles, providing versatile cleaning options to handle various types of dish loads.

The heated drying function enhances drying performance, although some users might find it less effective compared to more advanced drying technologies. The time delay feature allows you to schedule washes up to 24 hours in advance, adding flexibility to your routine. Some handy indicators, like the error alarm and rinse aid warning, help in maintaining the machine's optimal performance. At 54 pounds, it is relatively lightweight, which might affect its stability. Installation should be straightforward with the provided components.

The Frigidaire FFBD1831US 18-inch dishwasher and garbage disposal bundle offers a compact and efficient solution for smaller kitchens. With a capacity to clean up to 8 place settings in one cycle, this dishwasher is ideal for small households or apartment living. It features a dual spray arm system that ensures thorough cleaning for every load. The inclusion of a National Sanitation Foundation Certified Sanitize Cycle adds an extra layer of cleanliness, making it great for those who prioritize hygiene.

The heated drying system effectively dries dishes, reducing the need for manual drying. The dishwasher's stainless steel interior is durable and resists stains and odors, while the compact design makes it an excellent space-saving option for tighter kitchens. Additionally, the energy efficiency of this appliance is commendable, as it is ENERGY STAR certified, which can help reduce electricity bills over time. The sound reduction system ensures that it operates quietly, which is a significant advantage for open-concept living spaces.

However, the limited capacity might be a drawback for larger families or for those who entertain frequently. The six wash cycle options, including Energy Saver and Heavy Wash, offer versatility, but some users might find the choices somewhat limited compared to other models that offer more specialized settings. The bundled garbage disposal unit, with its powerful grinding system, is a useful addition, helping manage food waste efficiently. It comes with BIOSHIELD antimicrobial odor protection, which prevents unpleasant smells. This bundle is a practical choice for those looking to maximize kitchen efficiency in a compact space, but it may not suffice for bigger households with more extensive dishwashing needs.

The KoolMore KM-DW1852-PR is a well-designed 18-inch dishwasher suited for smaller kitchens or households needing a compact yet efficient appliance. It offers a respectable capacity with 8 place settings and 4.3 cubic feet of interior space, which is quite good for its size. The dishwasher is Energy Star certified, meaning it uses power efficiently to help save on electricity bills. Its noise level is rated at 52 decibels, which is moderately quiet but might still be noticeable in very quiet environments. The interior is stainless steel, which is durable and helps with better drying and resisting stains.

It features six wash cycles including Auto, Normal, Heavy, Delicate, and Rinse, giving enough flexibility for various dishwashing needs, though it’s not as extensive as some higher-end models. The dishwasher has practical elements like slide-out racks with pop-up holders for better loading options and a removable utensil basket for convenience. Another highlight is its panel-ready front, allowing the dishwasher to blend seamlessly into your kitchen cabinetry for a clean look. Installation is versatile as it can be freestanding or built-in, fitting standard countertop heights.

On the downside, while 52 dB is decent, quieter dishwashers around 44-48 dB are available if silent operation is a priority. Also, the control type is push-button rather than a more modern touch interface, which might feel a bit basic to some. This dishwasher is a strong choice for anyone needing a compact, energy-efficient, and customizable dishwasher, especially where space is limited and a clean kitchen aesthetic is desired.