You don't need kitchen scales to count calories well. You need a few honest estimates, a handful of foods you know by heart, and a plan that does most of the maths before you eat. Here's how to get close enough to be useful, without weighing a single blueberry.
Weighing everything feels precise, but it isn't perfect either. Labels round their numbers, and cooked food weighs differently to raw. What matters more is being consistent. If you estimate the same way every day, your weekly trend tells you whether to eat a bit more or a bit less. That's the whole job.
Your hand goes everywhere you eat. The scales stay on the bench. A common starting point looks like this:
A palm of protein: chicken, steak, fish, tofu, eggs
A fist of vegetables
A cupped hand of carbs: rice, pasta, potato, fruit
A thumb of fats: butter, oil, peanut butter, cheese
Many people start with one of each per meal (often two for bigger, more active bodies), then adjust after a week or two based on how the scales and their hunger are tracking.
Most of us eat the same few breakfasts and lunches on repeat. So check them once, properly, then stop checking. Pour your usual porridge into your usual bowl, look up the calories, and write it down. From then on, "my bowl of porridge" is a known number.
Handy reference points from the New Zealand serving size guide:
Half a cup of cooked rice or pasta is one grain serving
2 large eggs is one protein serving
30g of nuts is one serving (a small handful)
Packaged food already has the answer printed on it. Scan the barcode and you're done. For everything else, count things instead of weighing them: 2 slices of toast, 1 wrap, 3 crackers, 1 banana. Counting is fast, and it's surprisingly accurate.
Guessing your cucumber wrong costs you nothing. Guessing your oil wrong can cost you a few hundred calories. Put your attention where the calories hide:
Oils and butter: use a spoon, not a free pour. A tablespoon of oil is about 120 calories.
Cheese: count slices, not "a bit"
Sauces and dressings: check the label once
Nuts: portion them into a bowl, don't eat from the bag
The slowest part of counting calories is logging after you eat: searching a database and scrolling past 47 versions of "banana". Flip it around. Plan your meals with the calories already worked out, and logging becomes confirming what you ate.
That's the idea behind FlexiDiet, a meal planning app built in New Zealand. Your week's meals come already counted for your target, so a planned dinner is one tap and an off-plan snack is a quick scan. Takeaway night? Pick the closest match, log it and move on. Nothing's off the menu.
For most people, yes, as long as your estimates are consistent. Watch your weekly trend rather than any single day. If things stall for a couple of weeks, tighten up the calorie-dense foods first.
It depends completely on the food. A cupped hand of cooked rice and a handful of nuts are very different. A small handful of nuts (about 30g) is roughly 170 to 200 calories.
Check whether the restaurant publishes nutrition information. If not, log the closest match you can find and estimate a little high for anything fried or saucy.
Weighing a few staples once is a great way to calibrate your eye. After that, recheck now and then, especially if your progress stalls.
If counting calories ever makes you anxious about food, it's fine to stop. Talk to your GP about what suits you.
Brad Gorlicki holds an ISSA Specialist in Fitness Nutrition certification, plus a Certificate of Personal Training (Level 4) and a National Certificate in Fitness (Level 3), both NZQA recognised. He built the FlexiDiet meal planning app.
Questions: info@flexidiet.co.nz