BMI Calculator
By entering some basic information below, our BMI calculator will give you a score so you can better manage your weight outcomes
BMI Calculator
Calculate your Body Mass Index in just a few clicks
| Fitness Calculation | Result |
|---|---|
| BMI Calculation: | cal... |
| BFP Calculation: | cal... |
| Ideal Weight : | cal... |
| BMR Calculation : | cal... |
What is BMI?
Underweight (<18)
Recommended Weight (18.1 – 24.9)
Overweight (25 – 30)
Obese (30.1+)
What is BMI?
BMI, or Body Mass Index, is a calculation used by healthcare professionals and the general public to determine whether or not you’re at a healthy weight. Although it sounds complicated, the equation used is quite simple – your weight in KG, divided by your height squared (BMI = KG/m2).
For most adults, the ideal BMI is between 18.5 and 25. The calculator above can work this out for you, while also giving you some other important metrics so as BFP (Body Fat Percentage – what percentage of your weight is fat) and BMR (Basal Metabolic Rate – how many calories you need to maintain your current weight).
BMI on its own can’t be used as a reliable diagnostics tool – it should always be interpreted as part of the bigger picture. Athletes for example, may have a high BMI although a low Body Fat Percentage because muscle is heavier than fat. Ethnic groups can also be impacted differently based on the BMI calculation. Pregnancy is another instance where BMI should not be solely relied upon.
Waist size is also something that should be considered alongside BMI when trying to gain a better understanding of your body. Men should aim to lose weight if their waist size is greater than 37 inches while for women it would be 31.5 inches.
As with anything medical or clinical, it’s always best to consult your doctor if you’re concerned but our BMI calculator can help you along your journey and assist you in tracking your performance and improvement.
Underweight (<18)
Being underweight may be a sign you’re not eating enough food for your body composition, or that there could be other underlying health conditions. If you’re underweight, it’s recommended that you consult your GP.
For more information, click here
Recommended Weight (18.1 – 24.9)
Nice work! From the information you provided in the BMI Calculator, your result suggests that you are in the recommended weight category for your body composition. Keep it up!
For more information, click here
Overweight (25 – 30)
Your BMI Calculator score indicates that you are in the overweight category for your body composition. Being overweight increases your risk of developing Type 2 Diabetes, heart disease and other medical conditions. Typically, the most effective way to lose weight is through a balanced diet and regular exercise.
You can use our Calorie Calculator to give you a personal calorie allowance but it’s always recommended you seek advice from your GP before making lifestyle changes to ensure the best solution for you.
For more information, click here
Obese (30.1+)
Your BMI Calculator score indicates that you are in the obese category for your body composition. Obesity is defined as having abnormal or excessive fat accumulation in the body that may pose an increased risk to your health. Being obese increases your risk of developing Type 2 Diabetes, high blood pressure, heart disease and other medical conditions. Typically, the best way to lose weight is through a balanced diet and regular exercise, although medication and/or clinical intervention may be required in certain instances – this is something you should discuss with your GP.
You can use our Calorie Calculator to give you a personal calorie allowance but it’s always recommended you seek advice from your GP before making lifestyle changes to ensure the best solution for you.
For more information, click here