Helveito

    Health & Fitness

    Calculate BMI, BMR, and more. All tools run entirely in your browser: free, instant, and with no sign-up.

    BMI Calculator

    Body Mass Index (BMI) is a screening measure that relates your weight to your height using the formula weight (kg) divided by height squared (m²). This free calculator computes your BMI in metric or imperial units and shows which standard weight category (underweight, normal, overweight, or obese) your result falls into.

    BMR Calculator

    Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest to keep vital functions running: breathing, circulation, and cell production. This calculator estimates your BMR with proven formulas such as Mifflin-St Jeor, then multiplies it by your activity level to estimate total daily calorie needs.

    FIB-4 Calculator

    The FIB-4 (Fibrosis-4) index is a non-invasive score used to screen for liver fibrosis in chronic liver disease, including hepatitis B, hepatitis C, and NAFLD. It combines age, AST and ALT liver enzyme levels, and platelet count. This calculator returns your FIB-4 score instantly with the standard clinical interpretation thresholds.