Everlab health calculators: estimation tools for preventative health

In preventative healthcare, data helps you ask better questions. But data is only useful when you have the clinical context to understand what it means for your health and daily performance.

Everlab's suite of free health calculators are designed to help you interpret your metrics. Whether you want to estimate your 10-year cardiovascular risk, calculate your daily macronutrient targets, or understand the ratios in your routine blood test results, these tools give you a starting point based on established clinical formulas.

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Important: These calculators are not a replacement for professional medical assessment. They provide estimates that can inform a conversation with your doctor, not conclusions on their own.

Explore our suite of health calculators

Select a calculator below to get an estimate of your current health baseline.

1. Cardiovascular and preventative health

• ‍Cardiac risk calculator: Estimate your risk of developing heart disease in the next 10 years based on established clinical prevention guidelines. Takes under 2 minutes; no lab work required.
• ‍Blood pressure checker: Enter your latest systolic and diastolic readings to see where they sit according to the National Heart Foundation of Australia guidelines.
• ‍Biological age calculator: Learn about the biomarkers, from DNA methylation to PhenoAge, used to estimate how your body is ageing at a cellular level compared to your chronological age.

2. Nutrition and body composition

• ‍Body fat calculator: Go beyond standard BMI. Estimate your body fat percentage and lean muscle mass using validated anthropometric methods.
• ‍Calorie calculator: Estimate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor equation (Mifflin et al., 1990) to find caloric targets for maintenance, weight loss, or muscle gain.
• ‍Macro calculator: Calculate a suggested daily breakdown of proteins, fats, and carbohydrates based on your body composition and fitness goals.

3. Clinical blood test interpreters

• ‍A1C calculator: Estimate your HbA1c from your average blood glucose readings, or convert an existing A1C result into an estimated average glucose level. Based on the Nathan et al. (2008) formula used in clinical practice to track metabolic health patterns.
• ‍AST/ALT ratio calculator: Calculate your De Ritis ratio (De Ritis et al., 1957) to help interpret liver function markers. An abnormal ratio may warrant further investigation with your doctor for conditions such as Non-Alcoholic Fatty Liver Disease (NAFLD).
• ‍BUN/Creatinine ratio calculator: Estimate your kidney filtration ratio and hydration status. Reference ranges are based on RCPA guidelines. Results outside normal ranges should be discussed with your GP.

4. Cancer risk estimation tools

• ‍Breast cancer risk (Tyrer-Cuzick Model): Learn how this model (Tyrer et al., 2004) incorporates family history, genetics, and breast density to support proactive screening conversations with your doctor.
• ‍Prostate cancer and PSA calculators: Understand how tools like the PSA Density and Free-to-Total PSA Ratio calculators help differentiate between benign conditions and results that warrant further clinical investigation.
• ‍Melanoma risk calculator: Explore how age, skin type, and sun exposure history can be used to estimate your relative likelihood of developing melanoma based on population data.

Why start with a health calculator?

Health calculators serve as a practical first step in a preventative health approach. They allow you to establish a rough baseline, giving you context to understand where you currently sit relative to published clinical reference ranges.

From here, you can spot areas that may be worth investigating further and flag patterns before symptoms develop.

With these initial estimates, you can have a more informed and specific conversation with your GP about which blood tests or further investigations make sense for your situation.

While useful, remember that calculators provide estimates based on population averages. Individual variation is significant. True preventative health requires clinical investigation, because when it comes to accuracy, nothing replaces comprehensive pathology and clinical imaging interpreted by a qualified practitioner.

Ready to move from estimates to clinical data?

Calculators are useful screening tools, but they cannot replace a comprehensive clinical assessment.

If your calculator results have flagged an area worth investigating, or if you want to build a detailed picture of your health and performance, clinical testing is the logical next step.

Everlab's preventative health programs combine 100+ biomarker blood panels, clinical-grade DEXA body composition scanning, advanced cardiovascular assessments, and a one-on-one review with a doctor trained in preventative and longevity medicine.

Note: Everlab's programs are designed to complement your existing relationship with your GP, not replace it. Share your results with your primary healthcare provider.

Frequently asked questions

1. Are Everlab's health calculators free to use?

Yes. All of our online health calculators are completely free, require no sign-up, and can be completed in a few minutes.

2. Is my personal health data stored when I use these tools?

No. Tools like our Cardiac Risk Calculator run entirely in your browser. Your answers and health metrics are not stored, tracked, or shared by Everlab.

3. Can a calculator diagnose a medical condition?

No. Health calculators are screening and educational tools that produce estimates based on population data and established clinical formulas (such as the Mifflin-St Jeor equation for nutrition or the Tyrer-Cuzick model for breast cancer risk). They are not a substitute for professional medical advice, diagnosis, or treatment. Always discuss results with your GP.

4. What should I do if my results indicate a "high risk" category?

If your calculator results suggest an elevated risk (such as a high cardiac risk score or an out-of-range blood pressure reading), we recommend sharing these results with your GP or another healthcare professional. You can also book a discovery call with the Everlab team to discuss a comprehensive clinical assessment.

References

• De Ritis, F. et al. (1957). 'Transaminase activity of the blood serum in viral hepatitis', Minerva Medica, 48, pp. 223-228.
• Mifflin, M.D. et al. (1990). 'A new predictive equation for resting energy expenditure in healthy individuals', American Journal of Clinical Nutrition, 51(2), pp. 241-247.
• Nathan, D.M. et al. (2008). 'Translating the A1C assay into estimated average glucose values', Diabetes Care, 31(8), pp. 1473-1478.
• National Heart Foundation of Australia (2024). Blood pressure. Available at: https://www.heartfoundation.org.au/your-heart/know-your-risks/blood-pressure
• RCPA (Royal College of Pathologists of Australasia) (2024). RCPA Manual. Available at: https://www.rcpa.edu.au/Library/Practising-Pathology/RCPA-Manual
• Tyrer, J., Duffy, S.W. and Cuzick, J. (2004). 'A breast cancer prediction model incorporating familial and personal risk factors', Statistics in Medicine, 23(7), pp. 1111-1130.

General disclaimer: The content on this page is for informational and educational purposes only. Calculator results are estimates, not diagnoses. They do not constitute medical advice. Consult a qualified healthcare professional before making health decisions based on calculator outputs.