How often should I feed my dog?
The portion is only half the answer — when the food arrives matters as much as how much of it there is. Puppies eat little and often; adults eat twice; seniors eat twice, sometimes smaller.
Enter your dog's details
Work out the daily total first — then split it across the meals below.
Feeding schedule by age
| Age / stage | MER factor | Meals / day | Note |
|---|---|---|---|
| Under 4 months | ×3.0 | 3–4 | On current weight — weigh every 2 weeks; toy puppies never more than a few hours without food |
| 4–8 months | ×3.0 → 2.0 | 3 | Tapering smoothly — about ×2.5 at 6 months; three meals; growth is fast and the answer changes monthly |
| 8–12 months | ×2.0 | 2–3 | Two to three meals; large and giant breeds stay on growth factors until 15–24 months |
| Adult, neutered | ×1.6 | 2 | The default for most pet dogs — two measured meals, 12 hours apart |
| Adult, intact / active | ×1.8–2.5 | 2 | Same schedule, bigger portion — the factor, not the meal count, carries the work |
| Senior, lower activity | ×1.4 | 2 | Two meals; three small ones if appetite is poor or teeth are sore |
| Weight loss (at target weight) | ×1.0 | 2 | Two meals keeps hunger steadier than one — the deficit is the same either way |
Factors multiply RER on current weight for puppies and on ideal weight for adults. Generated by the same engine as the calculator above.
Why meal frequency matters
Three things change with the schedule: blood sugar, digestion and bloat risk. Puppies — especially toy puppies — have small stomachs and fast metabolisms, and a missed meal can mean low blood sugar within hours. Adults digest better in two sittings than one, and two meals make a missed or doubled portion obvious the same day. Deep-chested breeds (German Shepherds, Great Danes, Standard Poodles, Weimaraners and the rest) carry a real bloat risk, and one large meal followed by exercise is the worst combination for them: smaller, calmer meals with rest afterwards are the standard precaution.
Puppies: little and often
Under 4 months, three to four small meals a day on the ×3.0 factor, calculated on current weight and recalculated every two weeks — growth is fast and the answer changes monthly. From 4–8 months the factor tapers smoothly from 3.0 to 2.0 (about ×2.5 at 6 months) on three meals; from 8–12 months it settles at ×2.0 on two to three meals. Large and giant breeds keep the growth factors until 15–24 months, and lean growth is the goal throughout: excess calories accelerate the frame faster than the joints can follow. Never let a puppy skip meals to fix a missed one — offer food again within a few hours, and call the vet if a puppy refuses food for more than a day.
Adults: two measured meals
Two meals, roughly 12 hours apart, at the same times every day. The regularity matters as much as the count: consistent timing steadies appetite and digestion, and it makes the two-week weigh-and-adjust cycle meaningful — you are comparing like with like. Split the daily grams in half (a 20 kg neutered adult: 258 g a day, 129 g per meal) and keep treats inside the 10% budget, not on top of it. One meal a day works for some calm adults, but it is the worst option for deep-chested breeds, and it hides a missed meal until the next day.
Seniors: two meals, sometimes three small ones
Older dogs usually keep the two-meal pattern, at the senior factor of 1.4 × RER. Three small meals suit seniors with poor appetite, sore teeth or an empty-stomach nausea pattern — the daily total stays the same, only the split changes. What matters most in old age is consistency: the same times, the same measured portion, and a weigh-in every two weeks, because muscle loss and weight change show up slowly and are easy to miss. The senior feeding guide covers the factor, the protein question and when to switch.
Working dogs and the off-season
A dog in daily work eats at the active factor (2.0–2.5) but keeps the two-meal schedule — the factor, not the meal count, carries the extra energy. The mistake is keeping the working portion when the work stops: drop the factor the week the season ends, not when the weight shows up. Food used as training rewards counts inside the daily total at every age — a day of training treats can quietly add a quarter of the day's calories, so use part of the meal ration itself as rewards.
Every breed page on this site carries its own schedule — see the breed pages for the puppy timeline and meal counts matched to your dog — and the method page documents where every factor comes from.
How to use this calculator
Enter weight
Enter the dog's weight (use ideal weight for weight loss).
Select life stage and goal
Select the life stage and goal so the correct MER factor applies.
Enter food energy density
Enter the food's energy density (kcal per 100 g) from its label.
Read the daily portion
Read the daily portion in grams, split it across meals, and adjust by 10% every 2 weeks based on body condition.
Frequently asked
How many meals a day should a puppy eat?
Three to four small meals a day under 4 months, three meals from 4–6 months, then two to three from 6–12 months, and two as an adult. Puppies have small stomachs and fast metabolisms — and toy puppies are prone to low blood sugar if meals are missed — so little-and-often beats one big meal at every age under a year.
How many meals a day should an adult dog eat?
Two measured meals a day is the default for a healthy adult — it keeps portions honest, suits digestion, and makes a missed or doubled meal obvious. One meal a day works for some calm adults, but two is the safer default for most dogs, and it is the standard precaution for deep-chested breeds at bloat risk.
Can I feed my dog once a day?
You can, and some calm adults do fine on it — but it is the worst option for deep-chested breeds (bloat risk), for puppies (blood sugar), and for seniors with poor appetite or nausea. Two meals is the default this site recommends; if you feed once, keep the portion identical and watch body condition closely for a month.
What time should I feed my dog?
Consistent times matter more than the clock: morning and evening, roughly 12 hours apart, at the same times every day. Regular timing steadies appetite and digestion, and it makes the two-week weigh-and-adjust cycle meaningful — you are comparing like with like. Avoid hard exercise for about an hour after eating, especially for deep-chested breeds.
What if my dog misses a meal?
For a healthy adult, nothing: offer the next meal at the normal time and do not double it up. For a puppy under 6 months — and especially a toy puppy — a missed meal matters more: offer food again within a few hours, and if the puppy refuses food for more than a day, or seems wobbly or lethargic, call the vet the same day. Never fast a puppy to fix a missed meal.
Related calculators
Puppy Food Calculator
Growth portions by age in weeks and months, kibble or raw.
Dog Calorie Calculator
RER & MER explained and calculated — resting vs daily energy, per life stage.
Dog Food Calculator by Weight
Portions for every weight, 1 kg to 90 kg — table first, calculator second.