Feeder portion calculator
Daily food estimate from the published resting-energy formula (70 × weight in kg to the 0.75 power) times a life-stage maintenance factor, then converted to cups.
Your inputs
Weight in pounds; the formula converts to kilograms internally.
How many portions the feeder should dispense per day.
Results update as you type. This runs in your browser — nothing is sent or stored.
Result
Estimated daily energy need: 261 kcal/day
Daily portion of dry food: 0.82 cups
Per-meal portion: 0.41 cups
Meals per day: 2 meals/day
Worked examples (check the math)
10 lb neutered adult cat, 2 meals
| Pet weight | 10 lb |
|---|---|
| Life stage | Adult, neutered |
| Meals per day | 2 meals |
| Estimated daily energy need | 261 kcal/day |
|---|---|
| Daily portion of dry food | 0.82 cups |
| Per-meal portion | 0.41 cups |
| Meals per day | 2 meals/day |
5 lb kitten, 4 meals
| Pet weight | 5 lb |
|---|---|
| Life stage | Kitten or puppy (growing) |
| Meals per day | 4 meals |
| Estimated daily energy need | 259 kcal/day |
|---|---|
| Daily portion of dry food | 0.81 cups |
| Per-meal portion | 0.2 cups |
| Meals per day | 4 meals/day |
45 lb neutered adult dog, 2 meals
| Pet weight | 45 lb |
|---|---|
| Life stage | Adult, neutered |
| Meals per day | 2 meals |
| Estimated daily energy need | 807 kcal/day |
|---|---|
| Daily portion of dry food | 2.52 cups |
| Per-meal portion | 1.26 cups |
| Meals per day | 2 meals/day |
How this number is reached: This is the widely published maintenance-energy formula (70 × weight in kg to the 0.75 power, times a life-stage factor), not a measurement, and the maintenance factors are editable estimates for typical pets. Calories per cup vary by food — check the bag and adjust. Not veterinary advice: for a pet with a health condition or a weight plan, follow your vet’s feeding amounts.