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Frequently Asked Questions (FAQs)

What are health calculators, and how can they help you understand your health?

Health calculators are digital tools that use standard formulas and the information you enter to estimate specific health-related measurements. For example, they can calculate your BMI, estimate your BMR or predict a pregnancy due date. The results can help you understand certain aspects of your health and decide whether you need medical guidance, but they do not provide a diagnosis.

Which health calculators are available online?

Graphic Era Hospital offers online calculators for:

  • Body Mass Index (BMI): Estimates whether your weight falls within a particular range for your height.
  • Basal Metabolic Rate (BMR):Estimates how many calories your body uses at rest each day.
  • Pregnancy Due Date: Provides an estimated delivery date based on the information entered.

How accurate are online health calculators?

The accuracy of a health calculator depends on the formula used and the information you enter. Even with accurate details, the result remains an estimate. For example, BMI does not directly measure body fat, BMR can vary with muscle mass and other individual factors, and a pregnancy due date may be revised after an ultrasound. Also, BMI is considered a screening measure rather than a diagnostic tool. 

What health information do I need to use a health calculator?

The information required depends on the calculator. A BMI calculator usually needs your height and weight, while a BMR calculator may also ask for your age and sex. A pregnancy due date calculator generally requires the first day of your last menstrual period. Entering accurate and recent information will provide a more useful estimate.

Can health calculators help with weight loss and fitness planning?

BMI and BMR calculators can provide a useful starting point for weight management and fitness planning. BMI gives a general indication of your weight in relation to your height, while BMR estimates the energy your body uses at rest. These figures should be considered alongside your activity levels, body composition, medical history and nutritional needs when developing a plan.

Can I use health calculators without consulting a doctor?

Yes. You can use health calculators independently for general awareness and tracking. However, speak with a doctor or qualified dietitian before making major changes to your diet, exercise routine, or calorie intake, particularly if you have an existing medical condition, are pregnant or take regular medication.

Are health calculator results a substitute for medical advice?

No. Health calculators provide estimates based on standard formulas and cannot assess your symptoms, medical history, body composition or overall health. Their results should support health awareness, not replace a medical consultation, physical examination or diagnostic tests.