Height Calculator
Predict your child’s adult height based on clinical linear regression (Khamis-Roche method) and mid-parental genetic targets.
Height Calculator
Predict a child's future adult height using clinical linear regression (Khamis-Roche method) and parental genetics (Tanner mid-parental method). Supports US and Metric units with unit conversion.
Child Growth & Parental Genetics
Predicted Height: 5 ft 10.7 in(179.6 cm)
Normal Expected Range: 5 ft 8.7 in to 6 ft 0.7 in (174.6 cm to 184.6 cm)How Pediatric Height Prediction Works
Pediatricians utilize two primary non-invasive methodologies to predict adult stature in children:
- Khamis-Roche Method: Developed at Wright State University, this method utilizes linear regression models incorporating the child's current age, height, weight, and both biological parents' heights without requiring skeletal bone-age X-rays. It boasts a margin of error of approximately $\pm 2$ inches.
- Tanner Mid-Parental Method: A genetic baseline calculation based solely on biological parents' heights, ideal for unborn children and infants under 4 years old.
Mid-Parental Height Formulas (Tanner Method)
For Boys 👦
Height = (Father's Height + Mother's Height + 5 in) ÷ 2
Metric: (Father's Height + Mother's Height + 13 cm) ÷ 2
For Girls 👧
Height = (Father's Height + Mother's Height - 5 in) ÷ 2
Metric: (Father's Height + Mother's Height - 13 cm) ÷ 2
Understanding Height Calculator & Formula
The Height Calculator on CalculatorScale.com is engineered to deliver instant, mathematically verified calculations conforming strictly to standard institutional equations. Whether planning long-term investments, managing household budgets, tracking clinical fitness targets, analyzing academic genetics, calculating veterinary dosages, or converting dimensional units, every calculation updates dynamically in real time without lag.
Every formula used in this tool adheres to certified international standards, including World Health Organization biometric metrics, veterinary clinical guidelines, NIST physical conversion constants, and standard biological equations. Results are computed entirely client-side inside your browser with complete data privacy, ensuring your sensitive numbers and statistics never leave your device.
Our calculators are 100% free with no registration, subscriptions, or paywalls required. You can toggle between imperial and metric units, customize input parameters, export calculation summaries, or embed this calculator directly into your own website or blog.
How to Use the Height Calculator
- 1 Select US Units (feet/inches, lbs) or Metric Units (cm, kg).
- 2 Enter the child's current age, gender, height, and weight.
- 3 Enter the biological mother's and father's heights.
- 4 Click the green "Calculate ▶️" button to predict the child's adult height and growth percentile.
Height Calculator — Frequently Asked Questions
Q1 How accurate is the Khamis-Roche height prediction method? ▾
The Khamis-Roche method is one of the most accurate non-invasive height prediction algorithms, with a standard statistical error margin of approximately ±2 inches (±5 cm) for children older than 4 years.
Q2 What is the Mid-Parental (Tanner) height formula? ▾
For boys: (Father Height + Mother Height + 5 inches) ÷ 2. For girls: (Father Height + Mother Height - 5 inches) ÷ 2. In metric units, 13 cm is used instead of 5 inches.
Q3 What factors determine human height? ▾
Genetics account for approximately 60% to 80% of final adult height. Nutrition, adequate sleep (which triggers Human Growth Hormone release), and regular physical exercise comprise the remaining environmental factors.
More in Pediatric calculators
GFR Calculator
ClinicalCalculate estimated Glomerular Filtration Rate (eGFR) and Chronic Kidney Disease (CKD) stages using 2021 CKD-EPI race-free standard, comparative 2009 CKD-EPI, MDRD, and Bedside Schwartz equations.
BMI Calculator
PopularCalculate Body Mass Index (BMI) using US Imperial or Metric units, with WHO health classification and ideal weight range.
Calorie Calculator
EssentialDetermine your daily caloric needs for weight maintenance, healthy weight loss, or muscle gain based on Mifflin-St Jeor equation.
Body Fat Calculator
Estimate body fat percentage, fat mass, and lean muscle mass using the U.S. Navy circumference method.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) — the minimum energy your body burns at rest to keep vital organs functioning.
Ideal Weight Calculator
Find your healthy and ideal body weight range using Devine, Robinson, Miller, and Hamwi medical equations.
Explore All 4,700+ Calculators by Category
Genetics, molecular laboratory science, veterinary dosages, animal gestation, agronomy, and forestry.
Stoichiometry, chemical solutions, thermodynamics, kinetics, electrochemistry, and organic reactions.
Concrete, roofing, brick, framing, lumber spans, driveway paving, gravel, and material specifications.
Precision metric and imperial unit converters for length, area, volume, mass, pressure, temperature, and speed.
Carbon footprint, solar energy payback, tree sequestration, recycling offsets, and sustainable living metrics.
Travel durations, clothing and shoe sizes, fuel economy, home budgeting, sleep cycles, and daily routines.
Mortgage amortization, compound interest, loans, retirement planning, taxes, investments, and salary projections.
Culinary volume-to-weight conversions, baking hydration, ingredient scaling, pizza dough, and party food planning.
BMI, daily caloric needs (TDEE/BMR), body fat percentage, pregnancy due dates, clinical dosage, and pediatric metrics.
Scientific calculators, fractions, percentages, geometry, trigonometry, algebra, linear systems, and matrices.
Kinematics, Newtonian dynamics, thermodynamics, fluid mechanics, electromagnetism, optics, and relativity.
Heart rate training zones, running pace, triathlon pacing, cycling power, calories burned, and 1RM lifting benchmarks.
Standard deviation, normal distribution (Z-scores), confidence intervals, sample size, and probability odds.
Education GPA, photography exposures, music BPM, data storage, network bandwidth, and specialty calculations.