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Ideal Weight Calculator for Your Height

How much should you weigh? Enter your height and weight, in metric or imperial, to see the healthy weight range for your height based on the WHO BMI categories, along with your current BMI and the calories you need each day.

100% private: runs in your browser, nothing is uploaded

yrs
Sex
cm
kg
kg

Exercise 1–3 days a week

Your BMI

26.4Overweight

Healthy weight range for your height

50.4 kg – 67.8 kg

BMI 18.5 to 24.9 (World Health Organization). Any weight in this range is a healthy goal.

  • UnderweightBMI below 18.5
  • Healthy weightBMI 18.5 – 24.9
  • OverweightBMI 25.0 – 29.9
  • ObesityBMI 30.0 and above

BMR (resting energy)

1,440 kcal

Mifflin-St Jeor

TDEE (maintenance)

1,980 kcal

Calories you use per day

Pace

Daily energy target

1,480 kcal

About 0.5 kg a week

Estimated Healthy Milestone

…

64 kg in about 18 weeks

Projected trend -1.9 kg in 30 days

Today · 72 kgDay 30 · 70.1 kg

Estimates use about 7,700 kcal per kg of body fat and recalculate your energy use as your weight changes. Real progress moves in waves with water and hormones: be kind to yourself.

JaxFit gives general wellness information, not medical advice. Talk to a doctor before fasting or changing your diet if you are pregnant or breastfeeding, have diabetes or another medical condition, take regular medication, or have a history of eating disorders.

The JaxFit app

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JaxFit: Fasting & Weight Loss

Coming Soon on Google Play

Take Your Fasting Schedule, Meal Plans & Habit Garden Offline

  • 100% Offline & EncryptedZero accounts, zero cloud servers, passphrase-encrypted .jaxfit backups and a biometric or PIN lock.
  • Global Halal Meal Plans & RecipesCurated Window Openers, Window Closers and Healthy Snacks from South Asian, Middle Eastern, North American, East Asian, Latin American, Southeast Asian and West African kitchens, with full macros and “I made this” Kitchen Garden rewards.
  • The Habit GardenProgress without punishment: plants never die, and rest days keep your progress safe.
  • Live Cellular Renewal & Hydration TrackerReal-time glycogen, ketosis and autophagy insights, plus timer notifications while you fast.
Coming soon onGoogle Play

Guide

Why Your Ideal Weight Is a Range

There's no single perfect weight for a height. People with the same height differ in frame, muscle and where they carry weight, so JaxFit shows the full healthy range: every weight that gives a BMI between 18.5 and 24.9.

Anywhere inside that range is a healthy target. Many people aim for the middle; very active, muscular people may sit comfortably near the top, or even a little above it, while still being healthy.

Use the range as a guide, not a rule. Waist size, fitness, blood pressure and how you feel all matter. For under-18s, adult ranges don't apply, so JaxFit shows growth guidance instead.

Step by step

How to Find Your Ideal Weight

  1. 1

    Choose your units

    Use kg and cm, or lb and feet and inches. Your details are saved on this device only.

  2. 2

    Enter your height and weight

    Add your age and sex too, so your daily calorie needs can be worked out.

  3. 3

    Read your healthy range

    See the healthy weight range for your height, your BMI and its WHO category.

  4. 4

    Set a goal if you like

    Enter a goal weight inside the range to get a safe calorie target and an estimated goal date.

Private by design

Your Health Data Stays on Your Device

  • Every calculation runs in your browser. Nothing you enter is uploaded or sent anywhere.
  • No accounts, no analytics cookies, no tracking scripts and no ads.
  • Your details, timer and garden are saved only on this device. Clearing your browser data removes them.

FAQ

Frequently Asked Questions

How is my ideal weight calculated?

JaxFit uses the World Health Organization's healthy BMI range: every weight that gives a BMI between 18.5 and 24.9 at your height is a healthy weight. For example, at 165 cm (5 ft 5 in) that's about 50.4 to 67.8 kg (111 to 149 lb). Older formulas such as Devine or Robinson give a single number, but a range is more realistic, because frame, muscle and age all differ.

What is a healthy weight for my height?

A healthy weight range is the span of weights that give a BMI between 18.5 and 24.9 for your height. For example, at 170 cm (5 ft 7 in) that's about 53.5 to 72 kg (118 to 159 lb). Enter your height in the BMI tab to see your exact range. Anywhere inside it is a healthy target, so choose a goal that feels comfortable and sustainable for you.

How should I choose a goal weight?

Pick a weight inside your healthy range that you can reach and keep without extreme dieting. If you have a lot to lose, a first goal of 5–10% of your current weight already brings real health benefits. Enter it as your goal in the BMI & Calories tab to see a safe daily calorie target and an estimated goal date. JaxFit won't plan towards a goal below a healthy BMI.

What are the WHO BMI categories for adults?

The World Health Organization classifies adult BMI (weight in kg divided by height in metres squared) as: below 18.5 underweight, 18.5 to 24.9 healthy weight, 25.0 to 29.9 overweight, and 30.0 or above obesity. BMI is a quick screening number, not a diagnosis: it doesn't measure body fat directly, so very muscular people can score high. For under-18s, BMI must be compared with growth charts for age and sex instead of these adult categories.

What is a safe calorie deficit for weight loss?

For most adults a deficit of 250–500 kcal a day, losing roughly 0.25–0.5 kg (0.5–1 lb) a week, is sustainable and protects muscle. Larger deficits can be used for a short time by people with more weight to lose, but very low intakes leave little room for protein, vitamins and minerals. That's why JaxFit never suggests going below 1,200 kcal a day for women or 1,500 kcal for men, and doesn't offer weight-loss targets to under-18s or anyone underweight.

Is my health data private on JaxFit?

Yes. Every calculation runs in your own browser. Your age, weight, goals, fasting timer and Habit Garden are saved only in your browser's local storage on this device, so they're there when you come back. Nothing is uploaded, there are no accounts, no analytics cookies, no tracking scripts and no ads. Clearing your browser data removes everything.