A 4-cup coffee maker brews about 20 ounces total, while a 5-cup machine brews about 25 ounces, so the choice comes down to whether you want roughly two mugs or three.
Compact drip brewers are sneaky about their numbers: that “cup” printed on the box is not the 12-ounce mug sitting in your cabinet. Once you translate the label into real ounces, one of these two sizes usually wins for your kitchen within about a minute. The short version: the 5-cup class is the safer default for most US households, and here’s what actually separates the two sizes.
What Does The “Cup” Rating Actually Mean?
Manufacturers count a cup as roughly 5 ounces, not the 12 ounces a standard mug holds. That single quirk explains most of the confusion you’ll find in reviews.
In practice, that works out to about 20 ounces from a 4-cup machine and about 25 ounces from a 5-cup machine. So a 4-cup brewer pours one full mug plus a modest refill. A 5-cup brewer covers a large travel mug and a second smaller serving, which is why it tends to survive the years without regret in one-to-two person kitchens.
Where The Two Sizes Actually Split
The real gap shows up less in the mug count and more in footprint, power draw, and how much convenience you’re buying. A 4-cup machine is the smaller, simpler option; a 5-cup machine often layers in features that make the daily routine easier.
Concrete numbers help here. That’s compact enough for a narrow counter strip, yet it still brews the larger batch.
On the feature side, the Cuisinart 5-Cup Coffeemaker with Stainless Steel Carafe, model DCC-5570C, adds a removable water reservoir, a charcoal water filter, a permanent nylon coffee filter, Brew Pause, and a 30-minute keep-warm window. Those small conveniences matter more than they sound when you’re filling the reservoir at the sink instead of pouring from a pitcher.
Which Size Should You Buy?
Match the machine to your actual morning, not to a hypothetical crowd. If you brew for one person and want the most compact option, the 4-cup class is the honest fit; if you regularly pour two servings or fill a big travel mug, the 5-cup class pays off.
A few things worth checking before you commit:
- Filter type. Some 4-cup models require #2 cone paper filters, so stock up at the same time as the machine.
- Voltage. The Capresso unit runs on 120V/60Hz, which suits US outlets but isn’t compatible with 230V mains abroad.
- Pricing and availability.
- Keep-warm behavior. A fixed 30-minute window suits most routines, but not a slow sipper.
If you’ve already decided on the smaller format, browse this tested roundup of the best 4-cup coffee maker options before picking a model.
| Factor | 4-Cup Class | 5-Cup Class |
|---|---|---|
| Brewed volume | About 20 oz | About 25 oz |
| Best for | One person plus a refill | One to two people |
| Example wattage | Typically lower | 650W on the Capresso model |
| Footprint | Smallest available | 8 × 6¼ × 10 in on the Capresso |
| Example price | Lower entry point |
References & Sources
- Capresso. “5-Cup Mini Drip Coffee Maker” Source for the 25-ounce brew volume, 650W rating, weight, dimensions, and price of model 426.05.
- Cuisinart. “5-Cup Coffeemaker with Stainless Steel Carafe (DCC-5570C)” Source for the removable reservoir, charcoal filter, Brew Pause, keep-warm window, and listed price.
