The short answer
A hopper lasts its capacity divided by the food your cats eat each day. Makers give examples: PETLIBRO's RFID feeder holds 3 L, about two weeks for one cat; oneisall's 5 L two-cat feeder lasts 10 days for two adult cats; Nityers' 5 L camera feeder up to three weeks for an adult cat.
Maker examples
| Feeder | Capacity | Maker example |
|---|---|---|
| PETLIBRO RFID | 3 L | About 2 weeks, one cat |
| HoneyGuaridan RFID | 4.6 L | About 3 weeks, one cat |
| oneisall 2-cat | 5 L | 10 days, two cats |
| Nityers camera | 5 L | Up to 3 weeks, adult cat |
| Kacoomi gravity | 3.8 L | About 7 days, small pets |
Do the math
One cup of kibble is about 0.24 L. A cat eating half a cup a day uses about 0.12 L, so a 3 L hopper lasts about 25 days. Check your food's feeding guide and your vet's advice for portions.
Freshness
- Don't fill more than your cats eat in two or three weeks.
- Use the desiccant and sealed lid.
- Wash the hopper between fills.
Products mentioned
Questions readers ask
How long will a 5 L feeder last?
Depends on portions; oneisall says 10 days for two adult cats.
Should I fill it to the top?
Only with what your cats will eat in two or three weeks.