A good weight in kg depends on your height, sex, and body composition, but generally, a Body Mass Index (BMI) of 18.5 to 24.9 kg/m² is considered a healthy weight for most adults, calculated as weight (kg) divided by height (m) squared, with specific ideal ranges for men (BMI ~22-25) and women (BMI ~20-23) often cited. Use a BMI calculator with your height and weight to find your range, remembering it's just one indicator, and a doctor can offer personalized advice.
70kg (about 154 lbs) can be a healthy weight, but it depends heavily on your height, body composition, and overall health, as it falls within the normal Body Mass Index (BMI) range for many people but could be overweight for shorter individuals or underweight for very tall ones. For instance, a person 1.75m (5'9") tall with 70kg has a normal BMI, but height is key, so consulting BMI charts or a doctor is best for a personalized assessment.
Generally used to refer to males who could be overpowered and taken advantaged of by other males who are above 200 pounds. Could also be used as a general statement about a male weighing approximately 140-160 pounds or 60-70 kilograms.” - Urban Dictionary.
Whether 80kg (176 lbs) is "heavy" for a woman depends on her height, body composition (muscle vs. fat), and frame, as Body Mass Index (BMI) can categorize it as overweight or obese for shorter women but might be healthy for taller individuals with significant muscle mass, though a BMI over 30 (obesity) is generally considered unhealthy for most. A single number doesn't define health; factors like fitness level, strength, and body shape matter more than just weight.
Your healthy weight range in Australia is generally a Body Mass Index (BMI) between 18.5 and 24.9, calculated from your height and weight, indicating a normal weight, but it's a guide, with ranges like 18.5-24.9 considered healthy, 25-29.9 overweight, and 30+ obese, with waist circumference also important for assessing risk, say NSW Health, Medibank, and Healthdirect, Australian Institute of Health and Welfare, Better Health Channel, and Cancer Australia.
Body mass index (BMI)
A BMI calculation provides a single number, which the Centers for Disease Control and Prevention (CDC) categorizes as follows: A BMI of less than 18.5 suggests underweight. A BMI of between 18.5 and 24.9 suggests a healthy weight range. A BMI of between 25 and 29.9 may indicate overweight.
BMI Categories – What Your Results Mean
If you're 165 cm tall, a healthy weight is between 54 kg and 68 kg. If you weigh over 81 kg, your BMI is above 30, placing you in the obesity range.
Sleep deprivation has long been linked to an increased risk of becoming overweight or obese. Researchers found that getting less than seven hours of sleep resulted in weight changes and may lead to weight gain, either by increasing food intake or decreasing energy burned.
Why does weight gain happen faster with age? Dr. Mansuri: The metabolism naturally slows down with age, meaning the body burns fewer calories at rest and during physical activity. There is also a gradual loss of muscle mass, known as sarcopenia, which further reduces metabolic rate.
A healthy weight for your height depends on factors like sex, body composition, and age, but generally, a Body Mass Index (BMI) between 18.5-24.9 is considered normal, which translates to weight ranges like 100-127 lbs for 5'1" or 110-140 lbs for 5'4" (for a BMI of 19-24), with broader ranges for "ideal" or moderate health. Use online calculators or charts based on your height, and remember these are guides; consult a doctor for personalized advice as BMI doesn't account for muscle mass.
In Australia, a size 12 is generally considered a "straight" or "missy" size, falling within average ranges, but due to vanity sizing and inconsistent measurements across brands, it can represent different body sizes; health-wise, a larger waist (over 88cm for women) is a risk factor, and the actual average Australian woman is now closer to a size 16-18, meaning a size 12 is smaller than average, though "fat" is a subjective term related to body image and health metrics like BMI, not just a single number.
Fat loss is generally healthier as it preserves lean muscle mass, which is crucial for metabolism and overall health. Combine regular exercise (like resistance training and cardio) with a balanced, protein-rich diet, adequate hydration, and good sleep.
Cortisol, often called the body's stress hormone, plays a vital role in how we respond to daily life. But when cortisol levels remain elevated over time, it can lead to increased appetite, sleep disruptions and fat storage— particularly around your abdomen. This is often known as “cortisol belly.”
Whether 56 kg (about 123 lbs) is "heavy" for a girl depends entirely on her height, body composition (muscle vs. fat), frame size, and age, as this weight can fall into a healthy range for taller individuals but might be considered heavier for shorter individuals. For example, a 160 cm (5'2") person with a BMI around 22 (normal range) could weigh 56 kg, while a shorter person might be in the overweight category, emphasizing that BMI is just a guide, and factors like muscle mass and how you feel are important too.
The distribution of the current BMI ranged from 17 to 35 for women and from 19 to 35 for men. The changes in BMI units ranged from 0.5 to 2.5 between the ages of 70 and 90 years but were greater for women than for men.
Ideal body weight (men) = 50 kg + 1.9 kg for every inch above 5 feet. Ideal body weight (women) = 49 kg + 1.7 kg for every inch above 5 feet.
70kg isn't inherently heavy for a woman; it depends heavily on height, body composition, and build, but it often falls into a healthy range for taller women, while for shorter women, it could lean towards overweight. For example, a 175cm (5'9") woman at 70kg has a healthy BMI, but a 163cm (5'4") woman at the same weight might be considered borderline overweight, according to this article from The Daily Telegraph.