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Choosing an automatic feeder for two cats is less about finding the biggest hopper and more about matching the feeder’s footprint, bowl arrangement, and food capacity to your cats and your available space. A feeder that holds enough food may still be a poor fit if the bowls are too close together, the base is easy to tip, or the unit blocks a doorway.
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The Short Answer
For two average adult cats, choose an automatic feeder with a 5- to 6-liter hopper, or approximately 20 to 24 cups of dry food. The most practical overall dimensions are about 15 to 19 inches wide, 8 to 12 inches deep, and 12 to 15 inches high (38 to 48 cm wide, 20 to 30 cm deep, and 30 to 38 cm high).
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A dual-bowl model should provide at least 6 to 8 inches (15 to 20 cm) of space per bowl, with a stable base that is 2 to 4 inches wider than the hopper. If your cats eat at different speeds, a basic two-outlet dispenser may not prevent food stealing; consider a feeder with individually controlled bowls or microchip access.
For most homes, a 5L double automatic feeder is the best starting point. A 6L model is preferable if you want fewer refills, feed large cats, or will be away for several days. Compact 3L to 4L feeders can work when counter or floor space is limited, but they may need refilling every one to two weeks depending on portion size.
Standard Sizes
See also: Most Trusted Cat Litter Brands in 2026 and What Each Does Best • How to Introduce a Carrier to Cats (2026): Step-by-Step
The measurements below describe common automatic feeder sizes, not a guarantee that every model in a category will have identical dimensions. Always compare the manufacturer’s exterior measurements with your available space, including the bowl tray and lid.
| Feeder size | Typical capacity | Typical exterior dimensions | Best for |
|---|---|---|---|
| Compact, 3L–4L | 12–16 cups | 10–13 in W × 7–9 in D × 10–13 in H (25–33 × 18–23 × 25–33 cm) |
Small spaces, short trips, one or two small cats |
| Standard, 5L | 18–20 cups | 15–18 in W × 8–11 in D × 12–15 in H (38–46 × 20–28 × 30–38 cm) |
Most two-cat households |
| Large, 6L–7L | 24–28 cups | 16–20 in W × 9–12 in D × 13–17 in H (41–51 × 23–30 × 33–43 cm) |
Large cats, multiple daily meals, fewer refills |
| Split or separated-bowl model | 5L–6L | 17–22 in W × 9–13 in D × 12–16 in H (43–56 × 23–33 × 30–41 cm) |
Cats that need more bowl separation |
Capacity is usually listed in liters, but dry-food volume varies by kibble size and shape. As a rough guide, one cup of dry cat food weighs about 3.5 to 5 ounces (99 to 142 grams). A 5L hopper may therefore hold approximately 18 to 20 cups, while a 6L hopper may hold about 22 to 24 cups. Treat these numbers as estimates rather than exact feeding capacity.
At two 1/4-cup meals per cat each day, two cats consume about 1 cup daily, so a 20-cup hopper could last roughly 20 days. At two 1/2-cup meals per cat each day, consumption rises to 2 cups daily, reducing that estimate to about 10 days. Wet food requires a different type of feeder and generally cannot be stored safely for long periods at room temperature.
Current example prices range from approximately $30 to $110. Basic 5L double-bowl models may cost around $32 to $50, 6L app-connected models commonly fall near $40 to $70, and premium Wi-Fi feeders with sensors and freshness features can approach $100 or more. Price does not automatically indicate a larger hopper, so compare capacity and measurements separately.
How to Measure Your Space
- Measure the available width. Use a tape measure across the intended floor area. For a two-cat feeder, allow the full width of both bowls, not just the hopper. Add at least 2 inches (5 cm) on each side so cats do not feel boxed in.
- Measure front-to-back depth. Include the bowl lip, drip tray, and any rear power cord. A unit listed as 9 inches deep may need 11 inches of usable space when the cord exits straight backward.
- Check vertical clearance. Leave at least 3 inches (8 cm) above the lid for opening, filling, and cleaning. If the feeder sits beneath a cabinet, measure from the floor to the lowest obstruction.
- Map the cats’ approach. Keep a clear path in front of each bowl. Avoid placing the feeder directly against a wall if both cats must approach from the front or if one cat tends to guard the food.
- Locate the outlet. Most plug-in automatic feeders use a low-voltage adapter rated around 5 to 12 watts, although the exact wattage varies. Keep the adapter and cord away from water bowls and chewing access. Battery backup is useful during outages, but it does not replace regular battery checks.
- Measure the feeding height. The bowl rim is often 2 to 4 inches (5 to 10 cm) above the floor. That suits many cats, while older or arthritic cats may prefer a raised setup. Do not raise the unit so high that a cat must stretch or crouch awkwardly.
By Room or Use Case
Small kitchen or apartment
Choose a compact or standard feeder no more than about 16 inches (41 cm) wide and 10 inches (25 cm) deep. A 5L model is usually the best compromise. Place it on a washable mat away from the stove, dishwasher steam, and busy cabinet doors. If counter space is your only option, verify that the surface can support the feeder, food, and two cats without wobbling.
Open kitchen or laundry room
A 5L or 6L feeder works well when floor space is available. Look for a wide, weighted base and a bowl tray that can be removed independently for washing. In a laundry room, keep the feeder away from detergent, vibration, and heat-producing appliances. A width of 18 to 20 inches (46 to 51 cm) gives two cats more comfortable side-by-side access.
Multi-cat household
For more than two cats, capacity is only part of the sizing decision. A 6L or larger hopper reduces refills, but one double-bowl unit may still create competition. Use separate feeding stations when possible, or choose individually portioned compartments. Allow at least 3 feet (91 cm) between stations if one cat blocks another’s route.
Long weekends or travel
For two cats, a 5L feeder can provide several days of food, but calculate consumption from your cats’ actual portions rather than relying on the cup claim. Choose a model with a secure lid, jam-resistant chute, and battery backup. A low-food alert or sensor is useful, but arrange a human check for longer absences because a full hopper cannot correct a power failure or mechanical jam.
Slow eaters, food thieves, or anxious cats
Prioritize bowl separation and access control over a huge hopper. A feeder that dispenses into two bowls at once may not work if one cat regularly takes both servings. Look for adjustable timing, separate portions, and a base that cannot be pushed across the floor. Stainless-steel bowls are generally easy to remove and clean, while shallow bowls can be more comfortable for cats with sensitive whiskers.
Common Sizing Mistakes
- Buying by hopper capacity alone: A 6L unit may not fit the intended location or provide enough bowl separation.
- Ignoring kibble size: Large or irregular pieces can reduce actual capacity and may clog a narrow chute.
- Forgetting the tray: The bowl assembly often makes the feeder several inches wider than the main body.
- Assuming two outlets prevent food stealing: Simultaneous dispensing does not control which cat eats each portion.
- Overestimating the number of days: Portion size, meal frequency, and food density can make real capacity substantially different from the cup estimate.
- Skipping clearance measurements: A lid that cannot open fully makes refilling and cleaning unnecessarily difficult.
- Choosing an unstable tall model: Cats can knock over a narrow feeder, especially when the hopper is nearly empty.
FAQ
Is a 5L feeder big enough for two cats?
Usually, yes. A 5L feeder commonly holds about 18 to 20 cups of dry food, enough for roughly 10 to 20 days depending on the cats’ daily portions. It is a practical size for most adult pairs. Choose 6L if your cats eat larger portions or you want a longer refill interval.
How wide should a two-cat automatic feeder be?
Look for at least 15 inches (38 cm) of total width, with 17 to 20 inches (43 to 51 cm) being more comfortable for two cats. Each bowl should offer roughly 6 to 8 inches (15 to 20 cm) of usable space. Cats that guard food may need separate feeding stations rather than a wider shared tray.
How many cups of food should an automatic feeder hold?
For two cats, a useful target is 18 to 24 cups. Calculate expected duration by dividing hopper capacity by the combined daily amount. For example, two cats eating 1.5 cups total per day would use a 20-cup hopper in about 13 days.
Do automatic feeders use much electricity?
No. Many plug-in models use a small low-voltage adapter in the approximate 5- to 12-watt range, with exact consumption depending on the motor, display, Wi-Fi, and standby mode. Battery backup can keep scheduled meals running during an outage. Check the adapter label for the precise rating and keep cords protected from pets.
Ready to decide? Our #1 pick for 2026 is the Compact, 3L–4L.
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