Height Calculator – Convert Feet, Inches, Centimeters, and Compare Heights
Use this height calculator to convert feet and inches to centimeters, compare two heights, estimate a child’s adult height, calculate a general healthy weight range by height, and compare your height with common US average heights.
Height Converter
Convert height between feet and inches, centimeters, total inches, and meters. This is useful for medical forms, sports profiles, fitness apps, school forms, and international documents.
Height Difference Calculator
Compare two people’s heights and see the difference in inches and centimeters.
Predicted Adult Height Calculator
Estimate a child’s possible adult height using a simple mid-parental height formula.
Healthy Weight Range by Height
Calculate a general healthy BMI weight range using your height. This uses the common BMI range of 18.5 to 24.9.
Height Summary / Height Comparison
Enter your height to see a quick summary and a friendly comparison with approximate US adult average heights.
Height Calculator – Feet, Inches, CM, Meters, Height Difference and Healthy Weight Range
A height calculator is a simple tool that helps you understand height in different measurement systems. In the United States, many people use feet and inches, but health records, international forms, school documents, sports registrations, travel papers, and fitness apps may use centimeters or meters. This page combines a height converter, feet to cm calculator, cm to feet calculator, height difference calculator, child height calculator, adult height predictor, healthy weight by height calculator, and height comparison calculator in one easy place.
What Is a Height Calculator?
A height calculator helps convert height between feet, inches, centimeters, and meters. It can also compare two heights, estimate adult height for children using parents’ heights, and calculate a general healthy weight range based on height. This makes it useful for everyday conversions, health and fitness planning, school forms, sports profiles, and personal reference.
Why Height Conversion Is Useful in the United States
People in the US usually write height in feet and inches, such as 5 ft 9 in. However, many medical, fitness, international, and educational forms use centimeters or meters. A height converter can help when you need feet inches to centimeters, inches to feet calculator results, or meters to feet calculator results without doing manual math.
How to Convert Feet and Inches to Centimeters
To convert feet and inches to centimeters, first convert the full height into total inches. Then multiply total inches by 2.54.
Total inches = feet × 12 + inches
Centimeters = total inches × 2.54
Example: 5 ft 9 in = 69 inches. Then 69 × 2.54 = 175.26 cm.
How to Convert Centimeters to Feet and Inches
To convert centimeters to feet and inches, divide centimeters by 2.54 to get total inches. Then divide total inches by 12 to get feet and the remaining inches.
Total inches = centimeters ÷ 2.54
Feet = whole number of total inches ÷ 12
Remaining inches = total inches left after full feet
Example: 180 cm ÷ 2.54 = 70.87 inches. That is approximately 5 ft 10.87 in.
Height Difference Calculator Explanation
The height difference calculator compares two people’s heights by converting each height into total inches. It then subtracts the shorter height from the taller height and shows the difference in both inches and centimeters.
Predicted Adult Height Calculator Explanation
The predicted adult height calculator uses a simple mid-parental height formula. This adult height predictor is a general estimate only, not a medical diagnosis or a guaranteed result.
Girl estimate = father’s height + mother’s height - 5 inches ÷ 2
A child’s final adult height can be affected by genetics, nutrition, health conditions, sleep, hormones, and growth pattern. Please speak with a pediatrician for medical guidance about a child’s growth.
Healthy Weight Range by Height
The healthy weight by height calculator uses the common BMI healthy range of 18.5 to 24.9. It estimates a general weight range for a given height. This is educational only and is not medical advice. BMI does not directly measure body fat and may not apply perfectly to athletes, pregnant people, older adults, or people with certain medical conditions.
Average Height in the US
The height comparison calculator uses approximate US average height values. Average height can vary by age, genetics, ethnicity, nutrition, and health history.
| Group | Approximate Average Height |
|---|---|
| US adult men | 5 ft 9 in |
| US adult women | 5 ft 4 in |
Common Height Conversion Examples
| Height | Centimeters |
|---|---|
| 5 ft 0 in | 152.40 cm |
| 5 ft 2 in | 157.48 cm |
| 5 ft 4 in | 162.56 cm |
| 5 ft 6 in | 167.64 cm |
| 5 ft 8 in | 172.72 cm |
| 5 ft 10 in | 177.80 cm |
| 6 ft 0 in | 182.88 cm |
| 6 ft 2 in | 187.96 cm |
| Centimeters | Feet/Inches |
|---|---|
| 150 cm | 4 ft 11.06 in |
| 160 cm | 5 ft 2.99 in |
| 170 cm | 5 ft 6.93 in |
| 180 cm | 5 ft 10.87 in |
| 190 cm | 6 ft 2.80 in |
Tips for Measuring Height Accurately
- Stand straight against a wall.
- Remove shoes before measuring.
- Keep heels together and flat on the floor.
- Look straight ahead with your chin level.
- Use a flat object on top of the head to mark the height.
- Measure at the same time of day if tracking growth.
- For children, track height over time instead of relying on one measurement.
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Height Calculator FAQs
What is a height calculator?
A height calculator is an online tool that converts height between feet, inches, centimeters, and meters. It can also compare heights, estimate child adult height, and calculate a general healthy weight range by height.
How do I convert feet and inches to centimeters?
Convert feet to inches by multiplying feet by 12, add the remaining inches, then multiply total inches by 2.54. For example, 5 ft 9 in is 69 inches, and 69 × 2.54 = 175.26 cm.
How many centimeters are in one inch?
One inch equals 2.54 centimeters. This is the standard conversion used by the feet to cm calculator on this page.
What is 5 feet 9 inches in centimeters?
5 feet 9 inches equals 69 total inches. Multiply 69 by 2.54 to get 175.26 centimeters.
What is 180 cm in feet and inches?
180 cm is approximately 70.87 inches, which is about 5 ft 10.87 in.
What is the average height for men in the United States?
A commonly used approximate average height for US adult men is 5 ft 9 in, or 69 inches.
What is the average height for women in the United States?
A commonly used approximate average height for US adult women is 5 ft 4 in, or 64 inches.
How does the height difference calculator work?
It converts both people’s heights into total inches, compares the two totals, and shows the difference in inches and centimeters.
Can this calculator predict my child’s adult height?
It can provide a general estimate using parents’ heights and the mid-parental height formula. It cannot guarantee a child’s final adult height.
Is the predicted adult height result exact?
No. Adult height can be affected by genetics, nutrition, sleep, health conditions, hormones, and overall growth pattern. Speak with a pediatrician for medical guidance.
How is healthy weight range calculated by height?
This calculator uses the BMI formula and a general healthy BMI range of 18.5 to 24.9. It calculates the approximate lower and upper weight range for your height.
Is BMI always accurate?
No. BMI is a broad screening tool and does not directly measure body fat. It may be less accurate for athletes, pregnant people, older adults, and people with certain medical conditions.
Can adults increase their height?
Most adults cannot naturally increase bone height after growth plates close. Better posture, stretching, and strength training may help some people stand taller, but they do not usually increase actual skeletal height.
Why do doctors use centimeters for height?
Centimeters are part of the metric system, which is widely used in medical records, scientific measurements, and international health documentation.
Should I measure height with or without shoes?
Measure height without shoes for the most accurate result. Stand straight against a wall with your heels flat and your head level.