The Top 5 Compact Dishwashers (18 Inch) for Small Spaces

For a small kitchen space, a compact dishwasher (18-inches) is the best way to get your dishes done for you while saving on your electricity and water bills.

Small dishwashers  save space, are energy efficient, and use less water  when taking care of those mountains of dirty plates after mealtimes.

best compact dishwashers 18 inch

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But, are small dishwashers any good?

A slimline dishwasher is not necessarily any less capable than a full-size dishwasher, but you need to shop wisely, which is what we’re here to help you with.

👉 In a hurry? Jump straight to the compact dishwashers reviews  – right now

Small Dishwasher Dimensions

Dishwashers come in a variety of dimensions. The standard dishwasher size is 24 x 35 inches.

Small dishwashers are defined as  smaller than 24 inches wide . They can be built into cabinets, attached to the sink via hoses, and there are countertop models as well.

Most compact dishwashers measure up to 18 inches in width. The smallest dishwashers are 16-inch dishwashers.

You can also go for under-sink, in-sink, and single-drawer versions that come in varying dimensions.

👉 Want to save more space in your kitchen? see the Best Compact Microwaves – in 2021!

The Top 5 Compact Dishwashers (18-Inch)

Here’s a short comparison table, below you’ll find the pros and cons of each mini dishwasher:

 Bottom LineDimensions/CapacityBest Price
Bosch 300 Built-in
🥇Best Built-In Small Dishwasher9 place settings
32'' x 17.5'' x 22.5"
$797 at Appliances Connection
hOmeLabs Compact

Best Portable Mini Dishwasher6 place settings
17.2" x 19.6" x 21.6"
$359 at Walmart
Frigidaire 18"

Best Budget Built-In8 place settings
17" x 23" x 32"
$713 at Appliances Connection
Danby Portable

Best on Wheels8 place settings
26" x 17.7" x 36"
$597 at Home Depot
Edge Star
Portable Dishwasher

Most Energy Efficient6 place settings
21" x 19" x 17"
$269 at Overstock

There are different types of compact dishwashers:

  • Built-in (cabinets)
  • Countertop (portable)
  • Under the sink
  • Freestanding

We know how challenging it can be to find the right kitchenette dishwasher for small spaces.

The great news is:

We’ve done all the research for you (and us) and below you’ll find the 5 best space-saving dishwashers on the market:

1. Bosch 300 Compact (18 inches) Dishwasher  Best Built-In Small Dishwasher

bosch 300 compact dishwasher
Bosch 18 inch dishwasher – Best Built-In – best price at Appliances Connection

The Bosch 300 is known as the  quietest  brand of dishwashers in the United States.

It has 3 height levels for 9 possible rack positions, it comes with a built-in water softener (for hard water), and has 4 wash cycle options, and a delay start option, delicate, sanitize, and extra dry.

bosch compact dishwasher review
The inside

Capacity: 9 place settings

Rack Style:  3 height levels and 9 different rack positions

Wash Cycles: 4 wash cycles – auto, heavy, rinse, and normal

Energy Efficiency: ENERGY STAR qualified, offering year-round energy savings

Noise: 46 dBA

Built-In Water Softener: Yes

👉 Bosch 300 Pros

  • Very quiet – won’t interrupt those important kitchen conversations 😉
  • Lower cost operation – ENERGY STAR qualified for year-round energy savings
  • Sanitize option eliminates bacteria and enhances drying results
  • Leak protection mechanism that prevents water damage

Bosch 300 Cost – Best price at Appliances Connection


  • Only small cups fit underneath the top cup holder – should have been placed higher

2. hOmeLabs Compact Countertop Dishwasher Best Portable Mini Dishwasher

homelabs compact coutertop dishwasher
hOmeLabs compact dishwasher – best price on Walmart

The hOmeLabs small countertop (& portable) dishwasher is great for small kitchens or small office spaces.

This lightweight dishwasher comes with a six-place setting rack, and no tools are needed for assembly – thanks to the  quick connect assembly  with accessories included.

At the cost of only about $300, you get everything from an impressive 6 place setting capacity to 6 different wash cycles.

Users claim that it fits perfectly on the counter next to the sink and that it’s so effective they never had to wash anything for the second time.

Dimensions: 17.2 x 19.6 x 21.6 inches

Capacity: 6 standard place setting

Wash Cycles: 6 options – normal, heavy, glass, ECO, rinse and speed

Energy Efficiency: energy star certified

homelabs dishwasher

👉 hOmeLabs compact dishwasher Pros

  • The controls are user-friendly.
  • Efficient wash cycle – only 3.1 gallons of water are used each cycle
  • Easy setup, takes only a few minutes
  • Portable – you can take it with you when you move
  • Does not require any extra tools for assembly
  • Seamless digital display, just 4 small, white in-keeping buttons

hOmeLabs Compact Dishwasher CostBest price on Walmart


  • No water softener
  • No rinse-only option
  • Constant beep when finishes

3. Frigidaire  18″  Built-In Dishwasher Best Budget Built-in

frigidaire 18 inch dishwasher
Frigidaire 18 inch built-in dishwasher – best price on Appliances Connection

Made with  stainless steel interior and exterior , this durable small dishwasher has a sleek and modern design that we love and no less than 8 place settings.

It offers 5 wash cycles, 24-hour delay start, easy to use electronic controls, and a heated drying system.

A powerful yet time and money-saving dishwasher from the well-known American brand.

Dimensions: 17 x 23 x 32 inches

Capacity: 8 place settings

Rack Style: 2 Stainless steel racks

Wash Cycles: 5

Energy Efficiency: ENERGY STAR certified

frigidaire 18 inch dishwasher review

👉 Frigidaire 18 inch dishwasher Pros

  • Highly durable dishwasher, with a stainless steel tub
  • High capacity, yet energy saving
  • Sanitize option – operates at a higher temperature to fight bacteria and enhance drying results.
  • You can choose between heated dry or energy saver (no heat) dry option

Frigidaire small dishwasher cost –  best price at Appliances Connection


  • Requires a hookup kit that is not included and has to be bought separately,
  • Not the quietest one – Noise level is 58 dBA

4. Danby Portable Dishwasher  Best 18″ on Wheels

danby 18 inch portable dishwasher on wheels
Danby portable dishwasher on wheels – best price on Home Depot  or Amazon

The Danby portable, free-standing dishwasher measures 17.7 inches wide but can accommodate up to 8 place settings and comes with  easy-rolling wheels  that make it easy to move around and store.

It uses up to 3.5 gallons of water per wash, and offers 6 wash cycles, including intensive, economy, normal, glass, soak, and rapid.

Capacity: 8 place settings

Dimensions: 26 x 17.7 x 36 inches

Wash cycles: 6

Energy efficiency: Energy Star compliant

danby portable dishwasher review

Danby portable dishwasher Pros

  • Stainless steel interior
  • Water-saving
  • Large capacity for an 18″ dishwasher
  • Easy hookup, takes a few seconds to connect

Pricebest price on Home Depot


  • You’ll need an outlet close to your skin – the power cord is only 5 feet long, and the water hose is 3 feet long.

5. Edge Star Dishwasher  Most Energy Efficient

edge star portable countertop dishwasher
Edge Star energy-efficient portable dishwasher – best price on Overstock

The Edge Star compact dishwasher uses only 200 kilowatts per hour (about 61% less than most countertop models) and uses only 2.85 gallons of water per wash .

It fits under most kitchen cabinets, and most under the sink spaces as well, and comes with a drain hose which you would place in the sink for it to drain.

It requires no permanent set up (comes with a quick connect adapter that fits standard-sized kitchen faucets), and is super easy to operate.

Dimensions: 21″ x 19″ x 17″

Wash cycles: 7

Capacity: 6 Standard place setting

Rack Style: Cup shelf, cutlery basket, and dish rack

Noise: 52.3 dB (Normal)

edge start portable dishwasher review

👉 Edge Start Pros

  • Saves a lot of money on your water and energy bills
  • Super easy to operate with a digital display
  • Built-in rinse agent dispenser to minimize water spots
  • Water temperature is raised up to 149 F to kill bacteria
  • Highly rated by Amazon buyers
  • 1-year warranty

Edge Start Costbest price on Overstock


  • You have to be gentle when you screw the hoses to avoid leaking

Compact Dishwasher FAQ

Can you put a countertop dishwasher in a cabinet?
No, you cannot. A countertop dishwasher is not intended or designed to be fixed inside a cabinet or under the counter. It can only be used and installed as instructed, mainly because the heat needs to be exhausted as it was designed to.
What is a portable dishwasher?
A countertop or portable dishwasher has a hose that can temporarily attach to your kitchen sink’s faucet. However, this will only work in case the sink faucet contains a threaded faucet spout. For instance, faucets that contain built-in sprayers do not possess threaded faucet spouts. These dishwashers are an excellent choice if you wash small loads of dishes daily.
How long does a small dishwasher take to run?
The standard run time of dishwashers is up to 2 hours. It can also sometimes be less, or more, according to the model type. On some models of dishwashers, you can even see the timer display.
Is an 18-inch dishwasher too small?
Although 18-inch dishwashers are relatively smaller in size, they can take care of all the functions that full-sized dishwashers can. The only difference is that these dishwashers can take up fewer loads of dishes at a time while also taking up less space in the kitchen.

The KM Team

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