About these tools
What a calculator is good for
A calculator is arithmetic with a tidy face on it. It can turn things you already know about yourself into a figure that is easier to think about, and it can show you the working so you can check it. That is genuinely useful at the start of something. It is not an examination, and it is not an opinion about you.
What it is not good for
None of these pages knows your history, your medication, your bloods, your sleep or how you feel walking up a hill. Two people with the same figure can be in very different health. If something about your body has changed and you do not know why, that is a conversation with a doctor rather than a sum on a phone.
Why everything here is metric
Malta measures in centimetres, kilos and litres, so that is what these tools take and what they give back. Decimals are written the European way, with a comma, so a height reads as 1,78 metres. If you type a full stop instead, every calculator here still reads it correctly.
Your answers
The maths happens on your own device. Nothing you type is sent anywhere while you work through a calculator. Each tool asks for an email address before it shows your result, with a separate tick for handling your health answers and another, optional one for hearing from us. Health answers are held in medical confidence and are never used for advertising.
Common questions
What are the Carisma Medical health tools?
They are six free calculators for adults in Malta and Gozo. Five of them work with weight and nutrition: body mass index, the calories you burn in a day, a calorie deficit, a daily protein range and a daily water intake. The sixth is a symptom check for men who are wondering about low testosterone. Each one explains the sum it is doing and what that sum cannot see.
Are the calculators free to use?
Yes. Every calculator on this page is free, and so is the first assessment if you decide to speak to a doctor afterwards. There is nothing to buy before you get your result.
Is anything I type sent anywhere?
The arithmetic runs in your browser, on your own device. Nothing you enter leaves it while you are working through a calculator. Each tool then asks for an email address before it shows your result, and only at that point are your answers sent to us.
Why do you ask for an email address before showing the result?
Because we would rather be able to follow up with something useful than hand you a number and disappear. You are told before you submit, the maths has already happened on your device, and there are two separate boxes to tick: one so we may handle your health answers, and one so we may contact you about our services. Neither is ticked for you, and the second one is optional. Your answers are health data, they are held in medical confidence, and they are never used for advertising.
Are these tools metric?
Yes, and only metric. Heights are in centimetres, weights in kilograms, drinks in litres and 250 ml glasses, food energy in kilocalories and protein in grams. Decimals are written the European way, with a comma, so twenty six and a half reads as 26,5. If you type a full stop instead of a comma, the calculators understand that too.
Can a calculator tell me whether something is wrong with my health?
No, and none of these tools tries to. A calculator knows only the few things you typed into it. It cannot see your medical history, your medication, your bloods or how you feel, and it cannot diagnose anything. What it can do is give you a starting number and a reason to have a proper conversation. A Malta-registered doctor reads the whole picture.
Who are these tools for?
Adults aged 18 and over in Malta and Gozo. They are not designed for children, for pregnancy or breastfeeding, or for athletes carrying a lot of muscle, and the numbers they produce read poorly in those situations. If you are being treated for a heart, kidney or liver condition, or if eating has become difficult, follow the advice of the clinician who knows your case rather than a page like this one.
What happens after I use one of the tools?
Nothing you did not ask for. You see your result and you can close the tab. If you would like a doctor to look at the wider picture, you can start a free assessment, which is a short set of questions. A Malta-registered doctor then goes through your answers with you on a video call.
Talk to a doctor, not a calculator
A calculator sees the two or three things you typed. A Malta-registered doctor can see the rest. You answer a few questions, a doctor reads them, and you talk it through in a 20-minute video consultation. If the doctor prescribes, the prescription is emailed to you straight after the call, and you collect at any pharmacy in Malta or Gozo.
Start Your Free AssessmentMalta only. Adults over 18. Prescriptions only when a doctor says they are appropriate.
These calculators are educational tools. They are a general guide, not a diagnosis, and they cannot detect, screen for or rule out any medical condition.
They are for adults aged 18 and over in Malta and Gozo, and they are not designed for use in pregnancy or breastfeeding, in childhood, or where a clinician has given you different instructions. Follow the clinician who knows your case.
Carisma Medical is not for emergencies. If you are unwell now, call 112.