Any last minute disruption to our planned schedule will be posted here and on our Facebook page: 

If you are feeling unwell, please to not attend the clinic, especially if you are experiencing any of the following symptoms:
A high temperature: a new, continuous cough: a loss or change in your sense of taste or smell. 

BMI calculator

Follow this link to calculate your Body Mass Index

Useful formulas

Body Mass Index (BMI):


 Weight in Pounds / ( Height in inches x Height in inches ) x703


 Weight in Kilograms / ( Height in Meters) 2

Basal Metabolic Rate (BMR):

Imperial Women:

655 + ( 4.35 x weight in pounds ) + ( 4.7 x height in inches ) - ( 4.7 x age in years )

Imperial Men:

66 + ( 6.23 x weight in pounds ) + ( 12.7 x height in inches ) - ( 6.8 x age in year )

Metric Women:

655 + ( 9.6 x weight in kilos ) + ( 1.8 x height in cm ) - ( 4.7 x age in years )

Metric Men:

66 + ( 13.7 x weight in kilos ) + ( 5 x height in cm ) - ( 6.8 x age in years )

Body Fat Formula For Women:

Factor 1:

(Total body weight x 0.732) + 8.987

Factor 2:

Wrist measurement (at fullest point) / 3.140

Factor 3:

Waist measurement (at naval) x 0.157

Factor 4:

Hip measurement (at fullest point) x 0.249

Factor 5:

Forearm measurement (at fullest point) x 0.434

Lean Body Mass:

Factor 1 + Factor 2 - Factor 3 - Factor 4 + Factor 5

Body Fat Weight:

Total bodyweight - Lean Body Mass

Body Fat Percentage:

(Body Fat Weight x 100) / total bodyweight

Body Fat Formula For Men:

Factor 1

(Total body weight x 1.082) + 94.42

Factor 2

Waist measurement x 4.15

Lean Body Mass

Factor 1 - Factor 2

Body Fat Weight

Total bodyweight - Lean Body Mass

Body Fat Percentage:

(Body Fat Weight x 100) / total bodyweight

Waist to hip ratio:

Waist to hip ratio:

Waist Circumference / Hip Circumference

Our Reputation

Unlike other slimming clubs and providers of untested herbal supplements, our registration with Government inspectorate the Care Quality Commission, enables us to prescribe controlled medications to make it easier to lose weight. Evidence in the form of reputable controlled trials and scientific studies prove that this an effective aid in real world scenarios.

Your Appointment

A free, no obligation, confidential consultation can be arranged on 01268 694065.  Expect to receive a straightforward, one-to-one, non-judgemental appraisal that cuts through commonplace myths and misconceptions generally held about gaining and losing weight. Personal issues concerning your weight and health may be discussed in complete privacy.

Contact Us

Briarswood Clinic

Hilton Road
Canvey Island
Essex SS8 9XD
Tel: 01268 694065
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Briarswood Clinic Ltd. Registered Office:  Maynard Heady, First Floor, Arlington House, West Station Business Park, Spital Road, Maldon, Essex, CM9 6FF  | Your Privacy