건강
WHO, NHS, ACOG, ACSM 기준을 기반으로 한 체성분, 영양, 임신, 심장 건강 계산기입니다.
BMI 계산기
WHO 분류 기준과 NHS의 인종별 조정 기준치를 적용해 체질량지수(BMI)를 즉시 계산합니다. 미터법·야드파운드법을 지원하며 건강 체중 범위도 확인할 수 있습니다.
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.
출산예정일 계산기
마지막 생리일, 수정일, 또는 체외수정 이식일을 기준으로 ACOG의 네겔레 법칙과 ASRM 관행에 따라 출산예정일을 추정합니다. 무료로 이용하실 수 있습니다.
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.