Feeding
How Much Should You Feed a Cat? The Complete No-Guesswork Guide
If there is one question every cat owner asks at some point, it is this: how much should I actually be feeding my cat?
It sounds simple. It isn’t.
Most people either follow the back of the food packet or just eyeball the bowl. Both approaches are flawed.
I learned this the hard way with my first cat. I followed the packet exactly. Within a year, she had gained noticeable weight. Not obese, but clearly heavier than she should have been.
That was the moment I realised something important: feeding correctly is not about guessing or blindly following labels. It is about understanding how your specific cat works.
Why Most People Get Feeding Wrong
The issue is not laziness. It is bad information.
Food packaging gives ranges, not precise answers. Cats vary massively in metabolism, activity, and body type.
A feeding guide that says “50–75g per day” is not solving the problem. It is passing the decision back to you.
So most owners default to one of three behaviours:
- Overfeeding slightly (the most common outcome)
- Feeding inconsistently based on appetite signals
- Constantly adjusting without a clear baseline
None of these create stable, predictable outcomes. What you need instead is a structured way to calculate and then refine.
Step 1: Start with Body Weight (But Don’t Stop There)
Weight is the obvious starting point. Most feeding recommendations are built around it.
A typical adult cat sits somewhere between 3.5kg and 5kg. But that alone does not tell you how much to feed.
I’ve had two cats at 4.5kg with completely different needs. One was lazy and slept most of the day. The other was constantly moving, climbing, and exploring.
Same weight. Very different calorie needs.
Step 2: Understand Calorie Requirements
Calories are what actually matter, not grams of food.
As a rough framework:
- Low activity: ~60 kcal per kg
- Moderate activity: ~70 kcal per kg
- High activity: ~80 kcal per kg
So a 4kg cat might need anywhere between 240 and 320 kcal per day depending on lifestyle.
That is a huge range. This is why guessing portions leads to problems.
Step 3: Translate Calories into Actual Food
Here is where things get practical.
Different foods have different calorie densities. Wet food, dry food, raw diets — they all vary significantly.
This is why simply saying “feed 250g” is meaningless without context.
- Wet food: lower calories, higher moisture
- Dry food: higher calories, more concentrated
- Mixed feeding: requires balancing both
If you want to remove guesswork completely, use the Cat Food Portion Calculator to convert your cat’s needs into exact daily and per-meal amounts.
Why Per-Meal Feeding Matters More Than Daily Totals
Most guides focus on daily amounts. That is only half the picture.
Cats do not naturally eat one or two large meals. They are wired to eat small amounts throughout the day.
When you feed large portions infrequently, you create issues:
- Faster eating (leading to vomiting)
- Begging between meals
- Energy spikes and crashes
Structuring meals properly is just as important as quantity. If you are unsure, the feeding schedule calculator helps map this out clearly.
Wet vs Dry: How It Changes Portions
One of the biggest mistakes I made early on was treating wet and dry food as interchangeable.
They are not.
- Dry food is calorie dense — easy to overfeed
- Wet food is less calorie dense — larger portions needed
- Mixed feeding requires balancing both sides
If you use both, it is worth calculating properly using the mixed feeding calculator to avoid unintentionally doubling calorie intake.
How Age Changes Everything
Feeding a kitten is completely different to feeding an adult cat.
Kittens need significantly more energy relative to their size. They are growing rapidly and burn through calories fast.
- Kittens: 3–5 meals per day
- Adults: 2–3 meals per day
- Seniors: often smaller, more frequent meals
For younger cats specifically, use the kitten feeding schedule calculator to avoid underfeeding during growth phases.
The Biggest Mistake: Not Adjusting Over Time
This is where most people go wrong long-term.
They find a portion that works… and never change it.
But your cat is not static.
- Activity levels change
- Age changes metabolism
- Seasonal behaviour affects appetite
- Health conditions alter needs
The correct approach is not to set and forget. It is to monitor and adjust gradually.
How to Tell If You Are Feeding the Right Amount
You do not need complex tools to validate your feeding approach. Your cat’s body tells you everything.
- You should be able to feel ribs easily (but not see them clearly)
- There should be a visible waist from above
- Energy levels should be stable
- Weight should remain consistent over time
If you are unsure, read this breakdown on how to tell if you are overfeeding your cat.
Real Example: What Actually Worked For Me
After trial and error, I simplified everything.
Instead of guessing, I calculated a baseline. Then I adjusted slowly over time based on weight and behaviour.
Within a few months, everything stabilised. No more guessing. No more constant adjustments.
- Set a daily calorie target
- Convert into food portions
- Split into consistent meals
- Adjust every few weeks if needed
The Bottom Line
Feeding your cat correctly is not about perfection. It is about consistency and clarity.
Once you remove guesswork and base your feeding on real data, everything becomes easier.
Your cat maintains a healthy weight. Behaviour improves. Feeding becomes predictable.
And most importantly, you stop second-guessing every decision.