Mid-Parental Target Adult Height (Tanner Method for Boys & Girls) Calculator

Predict child target adult height (cm and ft/in) from biological parents’ heights.

Mid-Parental Target Adult Height
177.5 cm
Target Height in Total Inches 69.88 inches
95% Lower Genetic Bound (−8.5 cm) 169 cm
95% Upper Genetic Bound (+8.5 cm) 186 cm
Inputs
⚡ Scenarios:
cm
Biological father’s standing height in centimeters.
cm
Biological mother’s standing height in centimeters.
1=Boy, 0=Girl
Enter 1 for a boy (+13 cm adjustment) or 0 for a girl (−13 cm adjustment).
Results & Graph
Mid-Parental Target Adult Height
177.5 cm
Target Height in Total Inches
69.88 inches
95% Lower Genetic Bound (−8.5 cm)
169 cm
95% Upper Genetic Bound (+8.5 cm)
186 cm

Mid-Parental Target Adult Height

Graph 1 • Child Target Adult Height • Domain Architecture & Live Telemetry Maps Father Height Cm, Mother Height Cm, Child Sex Boy1 Girl0 through Child Target Adult Height Formula.
Child Target Adult Height • Clinical & Physiological Reference Scale Low / Baseline Target / Reference Elevated / Watch High / Action Mid-Parental Target Adult Height: 177.5 cm Target Height in Total Inc 69.88 inches 95% Lower Genetic Bound (− 169 cm 95% Upper Genetic Bound (+ 186 cm
Graph 2 • Mid-Parental Target Adult Height Across Father Height Cm Sweep (40% → 160%) Evaluates Boys_cm = (Father_cm + Mother_cm + 13) / 2; Girls_cm = (Father_cm + Mo across 7 operating points (current input highlighted).
0 cm 127.0 cm 254.0 cm 148.5 71.20cm 148.5 106.8cm 159.7 142.4cm 177.5 178cm 195.3 213.6cm 213.1 249.2cm 230.9 284.8cm
Graph 3 • Joint Sensitivity: Father Height Cm × Mother Height Cm Compares Mid-Parental Target Adult Height when Mother Height Cm is shifted +25% (solid) vs. −25% (dashed).
0 cm 123.6 cm 247.2 cm --- Mother Height Cm @ 75% 171.3 -30% 184.7 -15% 198 +0% 211.3 +15% 224.7 +30%
Summary: Predicted target adult height is 177.5 cm (5'9.9") with a 95% genetic target range of 169 to 186 cm.
Summary: Predicted target adult height is 177.5 cm (5'9.9") with a 95% genetic target range of 169 to 186 cm.
⚡ Send result to: BMI →Calorie & TDEE →Pace, 1RM & HR Zones →
Interactive chart & math engine powered by CalculatorGraph

Formula & Mathematical Methodology: Child Target Adult Height Formula

Boyscm = (Fathercm + Mothercm + 13) / 2
Girlscm = (Fathercm + Mothercm − 13) / 2 (95% Range: ±8.5 cm)
Boys_cm = (Father_cm + Mother_cm + 13) / 2; Girls_cm = (Father_cm + Mother_cm − 13) / 2 (95% Range: ±8.5 cm)
  • fatherHeightCm: Father Height Cm (cm)
  • motherHeightCm: Mother Height Cm (cm)
  • childSexBoy1Girl0: Child Sex Boy1 Girl0 (1=Boy, 0=Girl)

Rounding: Clinical scores round to statutory integer or decimal precision; physiological metrics round to 2 decimal places.

Worked Example: Clinical / Physiology Scenario: Child Target Adult Height

Predict child target adult height (cm and ft/in) from biological parents’ heights.

  1. Enter lab values, anthropometric measurements, or performance test metrics.
  2. Evaluate the reference equation: Boys_cm = (Father_cm + Mother_cm + 13) / 2; Girls_cm = (Father_cm + Mother_cm − 13) / 2 (95% Range: ±8.5 cm).
  3. Inspect the primary classification, supporting indices, and 3 SVG charts.
Result: Computes Child Target Adult Height via Boys_cm = (Father_cm + Mother_cm + 13) / 2; Girls_cm = (Father_cm + Mother_cm − 13) / 2 (95% Range: ±8.5 cm).

Frequently Asked Questions

How does the Mid-Parental Target Adult Height (Tanner Method for Boys & Girls) Calculator compute its result?

It evaluates Boys_cm = (Father_cm + Mother_cm + 13) / 2; Girls_cm = (Father_cm + Mother_cm − 13) / 2 (95% Range: ±8.5 cm) directly in your browser and updates three custom SVG visualizations in real time.

Can I use Goal Seek to solve backwards for a target lab value or pace?

Yes. Click "🎯 Goal Seek" in the results toolbar to solve backwards for any numeric input parameter.

Are my health and biometric inputs kept private?

Yes. All calculations run 100% locally on your device with zero external transmission.

Health & Fitness · Pediatrics, OB/GYN & Dosing

Mid-Parental Target Adult Height (Tanner Method for Boys & Girls) Calculator: inputs, method, and how to read the result

Predict child target adult height (cm and ft/in) from biological parents’ heights.

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Father Height Cm: Biological father’s standing height in centimeters.
  • Mother Height Cm: Biological mother’s standing height in centimeters.
  • Child Sex Boy1 Girl0: Enter 1 for a boy (+13 cm adjustment) or 0 for a girl (−13 cm adjustment).

What the calculation includes

With the default values shown, Mid-Parental Target Adult Height is 177.5 cm. The calculation follows Child Target Adult Height Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Father Height Cm from 178 cm to 196 cm changes Mid-Parental Target Adult Height from 177.5 cm to 186.5 cm. This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses peer-reviewed clinical and sports physiology formulas.
  • For educational and informational reference only; clinical scores do not replace physician judgment or laboratory reference ranges.

Scope: Global Clinical & Sports Science Consensus Check the assumptions and limitations against your situation before relying on the estimate.

More in Health & Fitness: BMI Calculator (Body Mass Index), Calorie Needs & TDEE Calculator, Running Pace, One-Rep Max (1RM), Target Heart Rate & Calories Burned Calculator.