Free Health Calculators & Risk Checks Ireland

BMI calculatorFree BMI calculator for adults in metric or imperial. Find your body mass index, what it means, and when to talk to an online doctor in Ireland. Diabetes risk calculatorCheck your risk of type 2 diabetes in 2 minutes with a validated questionnaire. Free, private, and explains when to talk to an online doctor in Ireland. Blood pressure checkerEnter your blood pressure reading to see whether it is low, ideal, raised or high, and what to do next. Free and private, with advice for adults in Ireland. Waist-to-height calculatorIs your waist less than half your height? Check your waist-to-height ratio in seconds and see what it means for your heart and diabetes risk. Free and private. Alcohol calculatorCount your weekly standard drinks and compare them with the Irish low-risk guidelines. Pints, wine, spirits and cans. Free, private and takes a minute. Smoking cost calculatorSee how much smoking costs you a week, a year and over 10 years in Ireland, plus your pack-years. Free support and help to quit from an online doctor. Calorie calculatorWork out roughly how many calories you need a day to keep your weight steady or lose weight gradually. Free, private and based on a standard equation. Due date calculatorWork out your estimated due date and how many weeks pregnant you are from the first day of your last period. Free, private, with next steps in Ireland. Ovulation calculatorEstimate your fertile window and likely ovulation date for the next three cycles. Free and private, with advice on when to talk to a doctor about fertility.

A guide, not a diagnosis

These tools use well-known formulas and questionnaires to give you a useful first indication. They cannot replace a consultation: a doctor looks at your whole health, history and symptoms. If a result worries you, or you feel unwell, speak to a doctor.

Your privacy

All the calculations happen on your own device. We do not store or see your answers.

Frequently asked questions

Are these health calculators free?

Yes. They are free to use and nothing you enter is saved.

Can a calculator tell me if I have a condition?

No. They estimate risk or give a guide. Only a doctor can diagnose a condition.

Who are the calculators for?

Adults aged 18 and over, except the pregnancy and ovulation tools, which are for anyone planning or expecting a pregnancy.

Official sources and further reading

HSE: healthy eating

This page is general information for patients in Ireland, not a diagnosis or personal medical advice. If you are worried about your health, speak to a doctor. In an emergency call 112 or 999.

Find an online doctor near you

DrCall serves every county in Ireland. Choose your area:

Free Health Calculators and Risk Checks

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