Home › Calculators & Converters › BMI Calculator

BMI Calculator

Calculate your Body Mass Index from height and weight, with the WHO category breakdown.

How to use BMI Calculator

  1. Choose metric or imperial units.
  2. Enter your height and weight.
  3. Read your BMI and category.

Frequently asked questions

What is a healthy BMI range?
The WHO considers 18.5–24.9 a normal range, though BMI does not account for muscle mass or body composition.

More Calculators & Converters

  • IPv4 Subnet Calculator — Compute network and broadcast addresses, host range, usable hosts, subnet mask, wildcard, and CIDR for any IPv4 address and prefix.
  • Calculator — A fast online calculator with Simple and Expert (scientific) modes and a running history — like the calculator on your phone, right in your browser.
  • Scientific Calculator — A full scientific calculator — trig, logs, powers, roots, factorial, constants, and memory — with keyboard support.
  • Percentage Calculator — Find a percentage of a number, increase or decrease by a percent, what-percent-of, and reverse percentages.
  • Unit Converter — Convert length, weight, data storage, temperature, volume, speed, area, and time.
  • Currency Converter — Real-time fiat and crypto currency conversion with live exchange rates.
  • Mortgage Calculator — Compute monthly payments, total interest, and an amortization preview for any loan.
  • Loan Calculator — Compute the monthly payment, total interest, and payoff time for any loan, with a full amortization preview.