Height (HT) Calculator
Use this HT calculator to convert between feet/inches and centimeters.
Tip: Inches can be decimal values (e.g., 9.5).
What is an HT calculator?
An HT calculator is a simple tool used to convert height measurements from one unit system to another. Most people switch between two formats: imperial (feet and inches) and metric (centimeters). This calculator does both quickly and accurately.
Whether you're filling out medical forms, sports profiles, school records, or fitness apps, a height conversion tool helps prevent unit mistakes and keeps your data consistent.
How to use this height calculator
Option 1: Convert feet/inches to cm
- Choose Feet & Inches → Centimeters.
- Enter your feet value.
- Enter your inches value.
- Click Calculate to get your height in centimeters and meters.
Option 2: Convert cm to feet/inches
- Choose Centimeters → Feet & Inches.
- Enter your centimeter value.
- Click Calculate to see feet/inches and total inches.
Formulas used in this HT calculator
Feet & inches to centimeters
First convert everything to inches:
Total inches = (feet × 12) + inches
Then convert to centimeters:
Centimeters = total inches × 2.54
Centimeters to feet & inches
Convert cm to inches:
Total inches = centimeters ÷ 2.54
Split into feet and inches:
- Feet = floor(total inches ÷ 12)
- Inches = total inches − (feet × 12)
Common use cases
- Medical records and health checkups
- BMI calculators and fitness tracking apps
- Athletic profiles and team rosters
- International travel, immigration, and forms
- Online shopping for clothing or equipment sizes
Tips for better accuracy
- Measure height without shoes for standard results.
- Stand straight against a wall and keep your head level.
- Use the same unit format across all documents.
- Round only at the end of the calculation, not during it.
Quick examples
Example A
5 ft 10 in = 70 in total. 70 × 2.54 = 177.8 cm.
Example B
165 cm ÷ 2.54 = 64.96 in. That equals 5 ft and 4.96 in, or about 5 ft 5 in.
Final thoughts
A reliable HT calculator saves time and removes guesswork. Keep this page bookmarked whenever you need a fast feet/inches to centimeters conversion or the reverse. Small accuracy improvements in basic measurements can make a big difference in health, sports, and personal records.