BMI Weight Calculator for Men & Women

What’s a BMI Calculator?

BMI stands for ‘body mass index’, and is a number generated by dividing your body weight by your height. A BMI calculator like the one below allows you to quickly figure out this number, giving you a general indication of whether your weight falls within a healthy range or not.

How Accurate is it?

It’s certainly a handy tool if you think your weight is beginning to veer into the unhealthy category. However, BMI doesn’t take into account an individual’s levels of fat versus muscle, a key factor to be considered. So, while a BMI calculator gives a good indicator for obesity, it’s important to bear in mind that everyone’s body is different.


with our easy-to-use BMI Calculator

Your Body Mass Index (BMI) is one of the easiest ways to tell whether you’re in a healthy weight range for your height.

Just enter your weight and height into our BMI calculator and get your results in an instant.


Understanding Your BMI Results

BMI results range from below 18.5 to over 40. As well as acting as an indicator for obesity, it also flags if a person is dangerously underweight. 18.5 – 24.9 means you’re an ideal weight for your height, while anything higher means you’re moving into the overweight category. See the full list of results below:

  • Below 18.5: Underweight
    A BMI of below 18.5 indicates that you’re underweight, and shouldn’t be aiming to lose any more pounds.
  • 18.5 – 24.9: Normal
    If you fall between this range, you’re at the ideal weight for your height.
  • 25.0 – 29.9: Overweight
    Generally, a BMI between these two numbers indicates that you’re in the overweight category.
  • 30.0 – 39.9: Obese
    At this BMI, your weight is increasing the risk of health issues.
  • 40+: Very Obese
    You are seriously at risk of health issues.

What’s Your Ideal Weight?

BMI Chart
BMI Chart

There’s no definitive ideal weight for a person, but by taking several factors (including BMI) into consideration, you can establish a goal to work towards. The table below is a helpful guide in figuring out what goal is healthiest for you. Your Motivation weight-loss consultant will help you work towards it, through regular one-to-one sessions that explore your emotional relationship with food. Delicious meal plans meanwhile will ensure you’re not left feeling hungry, meaning you lose weight – and keep it off!

Height Weight
  Normal Overweight Obese
4' 10"41.3 - 53.5 kg54 - 64.4 kg64.9 - 84.4 kg
4' 11"42.6 - 55.8 kg56.2 - 66.7 kg67.1 - 87.5 kg
5'44 - 57.6 kg58.1 - 68.9 kg69.4 - 90.3 kg
5' 1"45.4 - 59.4 kg59.9 - 71.2 kg71.7 - 93.4 kg
5' 2"47.2 - 61.2 kg61.7 - 73.9 kg74.4 - 96.6 kg
5' 3"48.5 - 63.5 kg64 - 76.2 kg76.7 - 99.8 kg
5' 4"49.9 - 65.3 kg65.8 - 78.5 kg78.9 - 103 kg
5' 5"51.7 - 67.6 kg68 - 81.2 kg81.6 - 106.1 kg
5' 6"53.5 - 69.9 kg70.3 - 83.9 kg84.4 - 109.3 kg
5' 7"54.9 - 71.7 kg72.1 - 86.2 kg86.6 - 112.9 kg
5' 8"56.7 - 73.9 kg74.4 - 88.9 kg89.4 - 116.1 kg
5' 9"58.1 - 76.2 kg76.7 - 91.6 kg92.1 - 119.3 kg
5' 10"59.9 - 78.5 kg78.9 - 94.3 kg94.8 - 122.9 kg
5' 11"61.7 - 80.7 kg81.2 - 97.1 kg97.5 - 126.6 kg
6'63.5 - 83 kg83.5 - 99.8 kg100.2 - 130.2 kg
6' 1"65.3 - 85.3 kg85.7 - 102.5 kg103 - 133.8 kg
6' 2"67.1 - 87.5 kg88 - 105.2 kg105.7 - 137.4 kg
6' 3"68.9 - 90.3 kg90.7 - 108.4 kg108.9 - 141.1 kg
6' 4"70.8 - 92.5 kg93 - 111.1 kg111.6 - 145.1 kg
View Full Chart
Collapse Chart

Take the Next Step

If your BMI indicates that you are in the overweight category, then you should consider losing weight. Book an assessment consultation with Motivation and we will:

  • Take your measurements and complete an accurate body composition analysis.
  • Explain our weight loss approach and recommend the programme we believe is best for you.

The consultation takes approximately 30 to 45 minutes and costs just €25.

The assessment allows you to ask plenty of questions and decide if this is the correct approach for you. We have 29 clinics in Ireland and you can request a call back above.

Why Try Motivation?

We will help you get off the dieting rollercoaster so you can change your life forever. Motivation can help you, thanks to its unique approach to losing weight that addresses not just what you eat, but why you eat.

This is not a diet, it’s a complete change of lifestyle that helps you to identify and address the habits, emotions and behaviours at the root cause of your weight problem, so prepare to be transformed!

Success Story

Siobhan Foley

Lost 2 Stone 3 Lbs  

"Motivation is doable, but you have to work at it. There is no point in just signing up to a programme and think that’s me, I'm done. I loved the one to one consultations in the clinic and even the craic. I actually looked forward to my appointments. You have to work at it. It got me back exercising again and in January of this year I took up running. Now I compete in races almost every weekend and just recently completed my first Half Marathon. In October 2015 I will conquer the Dublin City Marathon, hopefully the first of many marathons for me."

*Results achieved by following a tailored programme. Weight loss results may vary from person to person.

- Siobhan Foley (lost 2 Stone 3 Lbs  )