Guide to Weight Loss & Building a Healthy Eating Plan
"How do I lose weight?" doesn't have one answer that fits everyone, but it does have one starting point: know your current situation in numbers before setting your goal. This guide walks you step by step from assessing your current status, to calculating your actual daily needs for calories, protein, and water, all the way to comparing options like the keto diet.
Guide steps
Start here: BMI is the first quick reference number showing your general classification (underweight, normal, overweight, obese) per the World Health Organization.
BMI doesn't distinguish between muscle and fat — calculate your actual body fat percentage without equipment using the US Navy method for a more accurate picture.
Find out your target healthy weight range using four established medical formulas, to set a realistic goal instead of a random number.
This is the most important step: calculate your actual daily calorie needs (BMR and TDEE) and your target calories specifically for weight loss — without a proper calorie deficit, there's no real weight loss.
A calorie deficit alone isn't enough — calculate your protein needs to preserve your muscle mass during weight loss, with a practical distribution across your meals.
Calculate your daily water needs based on your weight and activity — many people confuse thirst with hunger and end up eating more than they actually need.
Considering keto specifically? Calculate your calories and the right macro split for this diet before you start.
Quick tips
- Sustainable healthy weight loss usually ranges between 0.5 to 1 kilogram per week — faster than that increases the chance of losing muscle mass instead of just fat.
- A calorie deficit is the scientific basis behind any successful weight-loss diet (keto, intermittent fasting, low-carb...) — the diet itself is just a means to reach a calorie deficit in a way that suits you.
- Increasing protein during weight loss helps with satiety for longer and reduces muscle mass loss — calculate your actual need instead of using a general number.
- Any calculator here (or on any site) gives you an estimate based on general formulas — your body's actual response may differ, and if you have a health condition, consult a doctor or dietitian before starting any strict diet.
Frequently asked questions
Where do I start if I haven't tried any calculator before?
Start with BMI then the calorie calculator — these two numbers give you enough of a picture to begin, then expand to the other calculators as needed.
Do I need to follow up on all these calculators every day?
No, the idea is you calculate once to know your approximate need, and recalculate whenever your weight changes noticeably (every 3-4 weeks, for example) to update your goal.
Is keto better than regular calorie reduction?
There's no "best" diet for everyone — keto is a means of reaching a calorie deficit in a particular way (reducing carbs), but the final result depends on your long-term commitment to the calorie deficit, whatever the diet.