Whirlpool WMCS3018RW Countertop Microwave with Turntable 0.7 Cu. Ft
- Countertop Microwave Oven
- 0.7 cu ft
- 700 watts
- Push button
- Better rated than 81%
A capable small-capacity microwave for one or two people, let down slightly by loud operation and a tight interior for anything wider than a plate.
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How it ranks among the 85 countertop microwave ovens we track
4.5★ across 73 Amazon ratings, Bayesian-smoothed toward the category average.
73 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
3,018+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 85 countertop microwave ovens we track - how the scorecard works · full countertop microwave ovens data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 13, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Whirlpool WMCS3018RW is a 0.7 cu ft, 700-watt countertop microwave with a turntable, steam clean function, and electronic touch controls. It suits singles, small kitchens, dorms, and anyone who needs a compact microwave rather than a full-size family unit.
Its steam clean setting (a bowl of water plus a button) is the standout feature, letting you loosen splatters without scrubbing or chemicals. At 0.7 cu ft it's genuinely small - fine for a mug or single plate, but a bag of popcorn or a wide plate can catch on the turntable as it spins. The child lock also re-engages the door after each cook, so it needs unlocking before reheating again.
- 0.7 cu ft capacity, 700 watts
- 10 power levels plus 4 express buttons
- White LED display, electronic touch controls
- Child safety lock included
Who it's for
Fits people who reheat single portions, live alone, or need a microwave for a small kitchen, RV, or office nook. Families who regularly heat large plates or multiple portions at once will find the interior cramped.
What buyers say
From Amazon customer reviews.
Buyers consistently praise the size for small kitchens and the steam clean and keep-warm settings, with several noting the child lock as a nice touch. Complaints center on noise ('too loud'), a bag of popcorn catching on the turntable, and the door re-locking after each use so it must be unlocked before restarting a cook.
Strengths and trade-offs
Drawn from this product's published specifications.
- Steam clean loosens spills without scrubbing
- Dishwasher-safe turntable simplifies cleanup
- Compact footprint suits small kitchens
- Multiple auto functions for reheat and defrost
- Runs louder than some buyers expected
- Interior too small for wide plates or popcorn bags
- Door needs unlocking between successive cooks
- Sits low, can catch on a counter lip
Specifications
| Brand | Whirlpool |
|---|---|
| Model | WMCS3018RW |
| Dimensions & fit | |
| Item Dimensions D x W x H | 12.4 × 18.3 × 10.5 inches |
| Capacity & performance | |
| Capacity | 0.7 cu ft |
| Defrost System Type | Auto Defrost |
| Heating Method | Electric |
| Power & efficiency | |
| Wattage | 700 watts |
| Number of Power Levels | 10 |
| Construction & materials | |
| Material Type | White |
| Inner Material | Plastic |
| Color | White |
| Compatibility & installation | |
| Installation Type | Countertop |
| Human Interface Input | Buttons |
| Included components | |
| Included Components | Turntable Plate |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Control Type | Push button |
| Cooking Program | defrost, power level (10), reheat |
| Item Type Name | Microwave |
| Additional Features | Self-Cleaning |
| Recommended Uses For Product | Residential |
Other Whirlpool countertop microwave ovens
How it compares
This product against the closest alternatives we track in countertop microwave ovens.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Whirlpool WMCS3018RW Countertop Microwave with Turntable 0.7 Cu. FtThis product | 4.5 / 5 | 73 | 4.1 / 5 |
| COMFEE' EM720CPL-PMB Countertop Microwave Oven with Sound On/OffCOMFEE' | 4.4 / 5 | 28,000 | 4.4 / 5 |
| Panasonic Microwave Oven NN-SN686S Stainless Steel Countertop/Built-In with Inverter…Panasonic | 4.3 / 5 | 8,400 | 4.4 / 5 |
| Nostalgia RMO4BK Retro 0.9 Cubic Foot 800-Watt Countertop Microwave OvenNostalgia | 4.6 / 5 | 1,200 | 4.4 / 5 |
| TOSHIBA EM131A5C-BS Countertop Microwave Ovens 1.2 Cu FtTOSHIBA | 4.4 / 5 | 32,299 | 4.3 / 5 |
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Questions about the Whirlpool WMCS3018RW
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size is the Whirlpool WMCS3018RW's interior?
It has 0.7 cu ft of capacity, sized for a mug, small plate, or single portion rather than a full dinner plate.
How does the steam clean function work on the WMCS3018RW?
You add a bowl of water and press the steam clean button; the steam loosens splatters so they wipe away with a damp cloth.
Is the turntable dishwasher safe?
Yes, the turntable plate can go in the dishwasher for cleanup.