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Protein Calculator

We all require a different amount of protein, depending on our age, body type and activity level. Enter your details to see how much protein is right for you.

Tell us about yourself

Your age and weight will help us estimate how much protein your body needs every day.
All fields are required. Do not use decimals. Must be at least 20 years of age.


For an accurate estimate of your daily protein requirements, this calculator can be used for individuals with a Body Mass Index (BMI) between 18-29.9kg/m2. Calculate your BMI here.

How active are you?

The more active you are, the more protein you need to help maintain muscle.

What are you looking for in your product?

SUSTAGEN® products are packed with a comprehensive range of vitamins and minerals to support your needs.

    Are you ready for your result?


    Consume as part of a varied and balanced diet and healthy lifestyle. SUSTAGEN® Hospital Formula and SUSTAGEN® Hospital Formula Plus fibre are a formulated meal replacement and cannot be used as a total diet replacement. SUSTAGEN® Collagen, SUSTAGEN® Everyday and SUSTAGEN® Ready to Drink are Formulated Supplementary Foods which can be of assistance where dietary intakes of nutrients and energy may not be adequate. SUSTAGEN® OPTIMUM™ is a Food for Special Medical Purpose, specially formulated for medical conditions where nutritional needs cannot be met through diet modification alone. Must be used under the supervision of a healthcare professional. SUSTAGEN® Sport is a Formulated Supplementary Sports Food which must be consumed in conjunction with a nutritious diet, not as a sole source of nutrition and should be used in conjunction with an appropriate physical training or exercise program. Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision. The advice given here is intended as a general guideline only and is not intended to replace the advice of a healthcare professional. Nutritional supplements can only be of assistance where dietary intake is inadequate. Please seek advice on your individual needs from an Accredited Practicing Dietitian or your healthcare professional.