Health calculators

Simple, honest tools that run entirely in your browser — nothing you type here is sent to us or stored anywhere.
BMI & healthy weight
Enter your height and weight to see your BMI.
India uses lower thresholds than the international ones (overweight from 23 rather than 25) because South Asians develop diabetes and heart disease at a lower body weight.
These are screening aids, not diagnoses. Every formula here is a published, standard one and is named on the tool that uses it — but a calculator cannot examine you, and none of these results should replace a conversation with your doctor. If a number here surprises you, the useful next step is a test, not a second calculator.
From a number to an answer
What to do next
A calculator can tell you something is worth looking into. A test tells you what is actually happening.

Worried about your weight or sugar
A fasting sugar and HbA1c together tell you whether glucose is genuinely a problem, and a lipid profile shows what it is doing to your arteries.
See biochemistry →
Planning or expecting a pregnancy
Antenatal care starts with haemoglobin, blood group, thyroid and sugar — the panel that protects both mother and baby through the first trimester.
See biochemistry →
Tired all the time
The commonest treatable causes are anaemia, low vitamin B12, low vitamin D and an underactive thyroid — all four are simple blood tests.
See haematology →