Free BMI Calculator

Free BMI calculator, BMI formula, BMI chart, BMI scale. BMI healthy weight calculator to determine your healthy weight range

The Body mass index (BMI) is the most commonly used measure of obesity and is the best known healthy weight calculator.  Use our online BMI calculator to check if you are in the healthy weight range.

Adolphe Quetelet was a Belgian mathematician and astronomer, who invented the Quetelet Index in the 1830’s. His investigation started when both the medical profession were beginning to realise that fat was no longer a sign of good health as was previously thought and the insurance industry woke up to the fact that mortality rates from overweight people were very high.

Ancel Keys, an American, became very interested in diet in the post war period in the 20th Century after realising the incidence of heart disease in Americans was far higher than Europeans where food was less available. In 1972, Keys validated the Quetelet Index and it became the Body Mass Index (BMI) as we know today.

What is BMI?

BMI takes an approximation of body fat based on our height and weight, it does not actually measure body fat. It’s a very simple calculation that should only be used as a guide, and takes no account of muscle mass. The body mass index calculation applies to both adult women and men.

Can BMI be used by everyone?

As we said above, BMI does not take into account the composition of your body, so may not always be accurate. For example, athletes and bodybuilders with strong muscles or people who have large body frames could be shown as obese by BMI calculations, but may have very little body fat. A gymnast could be estimated as underweight but not unhealthy. However, for the average person, it is a good measure of whether you have a healthy weight for height ratio. BMI is not accurate for children as they are still developing.

What is a healthy BMI range?

For most people, unless you are a bodybuilder, if your BMI calculation is high, that usually means you are high in body fat. As your body fat and BMI increases, and you are measured as obese (i.e. 30 or above), health risks increase. Being either overweight or obese means you are increasing the risk of having heart disease, diabetes, high blood pressure, stroke, cancer, etc. If this is the case for you, then set out to gain a healthy body weight, which will not only help you to lower the risk of certain health diseases but will help you feel fitter and lead a long healthier life. The challenge is then to maintain a healthy

How to calculate BMI?

When calculating your BMI, below you can use the BMI formula, the BMI chart, our free BMI calculator or the BMI scale.

Body Mass Index Formula – BMI formula:

Imperial Units The imperial bmi formula takes weight measurements in pounds & height measurements in inches or feet. 1 foot = 12 inches inches² = inches x inches BMI = ( lb/in² ) (weight in pounds x 703 ) ———————————— height in inches²

Metric Units The metric bmi formula takes weight measurements in kilograms & height measurements in centimeters or meters. 1 meter = 100cms meters² = meters x meters BMI = ( kg/m² ) weight in kilograms ———————————— height in meters²

BMI Chart - Healthy Weight Chart

To use this BMI table you need to know your height in inches. Move over to the right and select your weight in pounds. You can find your BMI at the bottom of that column.

Height
	Weight in Pounds
4'10"(58”)	91	96	100	105	110	115	119	124	129	134	138	143	148	153	158	162	167
4'11"(59”)	94	99	104	109	114	119	124	128	133	138	143	148	153	158	163	168	173
5' (60”)	97	102	107	112	118	123	128	133	138	143	148	153	158	163	168	174	179
5'1" (61”)	100	106	111	116	122	127	132	137	143	148	153	158	164	169	174	180	185
5'2" (62”)	104	109	115	120	126	131	136	142	147	153	158	164	169	175	180	186	191
5'3" (63”)	107	113	118	124	130	135	141	146	152	158	163	169	175	180	186	191	197
5'4" (64”)	110	116	122	128	134	140	145	151	157	163	169	174	180	186	192	197	204
5'5" (65”)	114	120	126	132	138	144	150	156	162	168	174	180	186	192	198	204	210
5'6" (66”)	118	124	130	136	142	148	155	161	167	173	179	186	192	198	204	210	216
5'7" (67”)	121	127	134	140	146	153	159	166	172	178	185	191	198	204	211	217	223
5'8" (68”)	125	131	138	144	151	158	164	171	177	184	190	197	203	210	216	223	230
5'9" (69”)	128	135	142	149	155	162	169	176	182	189	196	203	209	216	223	230	236
5'10"(70”)	132	139	146	153	160	167	174	181	188	195	202	209	216	222	229	236	243
5'11"(71”)	136	143	150	157	165	172	179	186	193	200	208	215	222	229	236	243	250
6' (72”)	140	147	154	162	169	177	184	191	199	206	213	221	228	235	242	250	258
6'1" (73”)	144	151	159	166	174	182	189	197	204	212	219	227	235	242	250	257	265
6'2" (74”)	148	155	163	171	179	186	194	202	210	218	225	233	241	249	256	264	272
6'3" (75”)	152	160	168	176	184	192	200	208	216	224	232	240	248	256	264	272	279
BMI	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35

BMI Calculator

To calculate your BMI, enter your weight and height in the BMI calculator below and then click on the “Body Mass Index” box. Your BMI will appear in the BMI box.

BMI Categories:

• Underweight = <18.5
• Normal weight = 18.5-24.9
• Overweight = 25-29.9
• Obesity = BMI of 30 or greater

Weight: poundskg Height: inchescm Your BMI is: ©lose-weight-with-us.com

Height and Body Weight Conversion Calculator Standard Feet Inches Pounds Metric Cm Kg rounded results © lose-weight-with-us.com

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