18in Portable Dishwasher: Best Picks for Small Kitchens

An 18in portable dishwasher fits where a full-size unit won't: a small apartment kitchen, a dorm, or an RV. If you want the short answer, the SPT SD-9263SS is the listing with the most owner ratings among the 18in models we found, at 4.1 stars from 282 ratings on Amazon. If you want a stainless tub and an ENERGY STAR listing with the same 8 place settings, look at the SPT SD-9263SSB. Both are listed in Amazon's over $300 price tier, so check the live listing before you buy. Those figures are from the listings, not from our own tests.

How we researched

We compared the 18in and near-18in portable dishwashers that appeared in the current search results and the Amazon Best Sellers page for portable dishwashers. We used the product titles, the capacity and feature details shown in the listings, the Amazon star ratings and rating counts, and a few short owner comments from search result pages. We also checked how many listings were actually 18in wide, since several sellers list a different width. We did not test any of these machines, and we did not add expert testing that isn't in the sources we read. This guide compares products using manufacturer specifications, current Amazon listings and owner reviews; we did not test them hands-on.

Buying criteria, in order of weight

1. Width and fit. The product must actually be 18in wide. The Hamilton Beach model with wheels is listed at 19in wide, so measure your space first.
2. Capacity. Most of these machines list 8 place settings. That is enough for one or two people, but an owner comment we read says it is not sized for a family.
3. Wash programs. Listings show 6 wash programs on several models. Check that you get the cycles you use, such as a quick wash or a sanitize option.
4. Energy rating. Several listings carry the ENERGY STAR label.
5. Owner feedback. Star ratings and review counts show how many people have bought each model. A rating from four people tells you very little.

How we chose: we weighted fit and capacity first because they decide whether the machine works in your kitchen at all. We used the listed specs and Amazon ratings as the evidence. The guide will be updated when listings, price tiers or specifications change.

SPT SD-9263SS: the most owner ratings

The SPT SD-9263SS is an 18in wide stainless steel portable with ENERGY STAR. It has 282 ratings on Amazon at 4.1 stars, the largest sample of any 18in listing we saw. It suits buyers who want a stainless look and a widely rated model. The drawback is that the listing does not show every detail you may want, such as the exact water hookup method, so read the full listing before you order.

SPT SD-9263SSB: a tub and 6 programs

The SPT SD-9263SSB is an 18in wide portable with ENERGY STAR, 6 wash programs, 8 place settings and a stainless steel tub. It has 58 ratings at 4.1 stars on Amazon, a smaller sample than the SS version. Choose it if you want the stainless tub and a program count that is listed in full. The drawback is the smaller review base.

BLACK+DECKER 18-Inch Portable Dishwasher: a budget-minded option with a lower rating

The BLACK+DECKER 18-Inch Portable Dishwasher is listed with ENERGY STAR, 8 place settings, 6 wash programs, an LED display and a stainless steel tub. It has 187 ratings on Amazon at 3.8 stars. That rating is lower than the SPT models, and owners are the best judge of why. Pick it if the feature list matches your needs and you accept a lower star average.

Who should skip the 18in models

Skip an 18in unit if you cook for a family, since an owner review on one Sam's Club listing says the Hamilton Beach model is great for a small kitchen but not for a family. Skip the Hamilton Beach Portable Dishwasher with 2.6 stars from only 4 ratings, because four reviews are too few to judge. Also skip any model if your counter space or water supply does not match the listing details.

Comparison table

The Danby DDW1805EWP is described as 18 inches wide with eight place settings and four wash cycles, but we found no Amazon listing link for it in our sources, so we have left it out of the picks.

How to choose

If your space is 18in or narrower and you want the most owner feedback, pick the SPT SD-9263SS. If you want a stainless tub and a full 6-program list, pick the SPT SD-9263SSB. If your budget matters more than the rating average, compare the BLACK+DECKER model against the SPT options on the features you need. If you need a wider machine, the Hamilton Beach with wheels fits a 19in space, and our main comparison of countertop picks by price range covers other types: /guides/top-rated-countertop-dishwasher-picks-by-price-range/

The site may earn a commission on the Amazon links in this guide, and the price you pay does not change.

FAQ

Will an 18in portable dishwasher fit under a standard counter?

Not always. Measure the space and check the width and height on the listing, because the product width is not the same as the space you need for hoses and clearance.

How many place settings do these models hold?

The 18in listings we read say 8 place settings. That is enough for one or two people. A family will likely need to run the machine more often.

Are the star ratings reliable?

Only as a guide. A model with 282 ratings tells you more than one with 4. Read the recent owner comments before you decide.

Conclusion

For most people choosing an 18in portable dishwasher, the SPT SD-9263SS and SPT SD-9263SSB are the strongest starting points based on rating volume and listed features. Measure your space, confirm the width, and check the live Amazon listing for the current price tier and water setup before you buy.

Sources

• Danby 18-inch portable dishwasher listing
• Hamilton Beach 18-inch portable dishwasher at Sam's Club
• 18 inch dishwasher guide