Kesehatan
Kalkulator komposisi tubuh, nutrisi, kehamilan, dan kesehatan jantung berdasarkan standar acuan WHO, NHS, ACOG, dan ACSM.
Kalkulator BMI
Hitung Indeks Massa Tubuh Anda instan dengan klasifikasi WHO dan ambang batas etnis NHS. Metrik & imperial, termasuk rentang berat badan sehat.
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR) and compare it with the WHO 2008 cut-offs for abdominal obesity in men and women. Free and instant.
Body Roundness Index Calculator
Calculate your Body Roundness Index (BRI) from waist and height using the Thomas et al. formula, with ranges from recent US population research.
Body Fat Calculator
Estimate body-fat percentage from circumference measurements using the US Navy method (Hodgdon & Beckett 1984), classified with ACE body-fat categories.
BMR Calculator
Calculate your basal metabolic rate with the Mifflin-St Jeor equation and the revised Harris-Benedict equation. Free, instant, metric and imperial.
Ideal Weight Calculator
Estimate ideal body weight with the Devine, Robinson, Miller and Hamwi formulas plus the WHO healthy-BMI weight range for your height.
Lean Body Mass Calculator
Estimate lean body mass with the Boer, James and Hume formulas. See estimated body fat mass and lean mass percentage from weight, height and sex.
Macro Calculator
Calculate daily protein, carbohydrate and fat grams from your estimated calorie needs, with balanced, high-protein, keto and plant-based splits.
Water Intake Calculator
Estimate daily water intake from body weight, exercise and climate using common 30–35 ml/kg clinical guidance. Results in liters, glasses and ounces.
Protein Calculator
Calculate daily protein needs by goal — RDA 0.8 g/kg, general activity, muscle gain or endurance — with per-meal targets from published ranges.
Calorie Calculator
Calculate daily calories to maintain, lose or gain weight using the Mifflin-St Jeor equation, activity multipliers and safe minimum-calorie floors.
Gestational Age Calculator
Find out how many weeks pregnant you are from your last period or due date. Shows trimester, estimated due date and days remaining, per ACOG dating.
Kalkulator Perkiraan Tanggal Lahir
Perkirakan tanggal lahir dari HPHT, tanggal pembuahan, atau transfer embrio IVF menggunakan Aturan Naegele ACOG dan konvensi ASRM. Gratis.
Ovulation Calculator
Find your ovulation date and six-day fertile window from your last period and cycle length. Based on Wilcox et al. NEJM 1995. Free, private, no sign-up.
Fertility Window Calculator
Calculate your broadest possible fertile window from a range of cycle lengths. Designed for irregular cycles using earliest and latest ovulation estimates.
Conception Date Calculator
Estimate when conception likely occurred from your due date or birth date. Uses the 266-day (EDD minus 266) reverse formula with a ±3-day window.
Max Heart Rate Calculator
Estimate your maximum heart rate with five published equations — Fox, Tanaka, Nes, Inbar and the women-specific Gulati formula — with accuracy limits.
Target Heart Rate Calculator
Calculate your five training heart-rate zones with the Karvonen (heart-rate reserve) method from your age and resting heart rate. Free and instant.