Health

Next Blood Donation Calculator

Automatically calculate your next eligible blood donation date based on your previous donation type and date to help you plan your donation schedule.

Maximum Heart Rate (MHR) Calculator

Calculate your maximum heart rate using multiple scientific formulas to help fitness enthusiasts create effective training plans and identify safe target heart rate zones.

Fetal CPR Calculator

Enter the fetal MCA PI and UA PI values to instantly calculate the cerebroplacental ratio (CPR) and help assess the risk of intrauterine hypoxia.

ICH Volume Calculator

A fast intracerebral hemorrhage volume estimation tool based on the ABC/2 formula to assist clinical decision-making.

Thyroid Metabolic Rate Calculator

Estimate your thyroid basal metabolic rate (BMR) using pulse rate and pulse pressure to preliminarily assess hyperthyroidism or hypothyroidism risks.

Breath Calculator

Enter your date of birth and breathing rate to estimate your total lifetime breaths, along with the total days and minutes since birth.

Coronary Heart Disease Risk Calculator

Calculate your coronary heart disease risk index and assess cardiovascular health based on age, blood pressure, and cholesterol levels.

Respiratory Index (RI) Calculator

A fast Respiratory Index (RI) calculation tool for medical professionals to assess lung oxygenation function.

GFR Calculator

Quickly calculate Glomerular Filtration Rate (GFR) based on the CKD-EPI formula to assess kidney health.

Thyroid Nodule Grading Interpreter

Interpret thyroid nodule TI-RADS grades and assess malignancy risk based on standard guidelines.

Follicle Size Calculator

Enter your ultrasound follicle measurements to instantly assess development and optimize your chances of conceiving.

Thyroid Nodule Aspect Ratio Calculator

Enter the AP and transverse diameters of a thyroid nodule to calculate its aspect ratio, assess malignancy risk, and help interpret your ultrasound report.

Fetal Weight Chart by Gestational Age

A fetal weight reference tool based on NICHD Asian singleton data, helping expectant parents quickly assess their baby's growth.

Gestational Age Calculator

Accurately calculate fetal gestational age using your Last Menstrual Period (LMP) or ultrasound measurements (CRL, BPD, HC, FL) to estimate your due date and track fetal development.

Ovulation Calculator

Automatically calculate your ovulation day and fertile window based on your menstrual cycle to help you find the best time to conceive.

Adult Height and Weight Chart (2026 Edition)

Find a reference weight for your height and use BMI to check your healthy weight range

Fetal Growth Chart

A fetal development reference tool based on authoritative consensus, providing standard ranges for key parameters like BPD and head circumference by gestational week.

Fetal Gestational Age Chart

Quickly check fetal gestational age using ultrasound measurements like Crown-Rump Length (CRL) and Head Circumference (HC). Covers all trimesters to help you track fetal development.

Child Height and Weight Chart (2026)

Look up reference height and weight ranges by age and sex to understand your child’s growth and track changes over time.

Child Vaccination Schedule

Generate a personalized 0-6 year child vaccination schedule by birth date. Easily track your baby's immunization plan and never miss a shot.