Mathematics
Height Converter
Calculator
Convert height between the US customary format (feet and inches) and the metric system (centimeters and meters). Used for medical forms, international travel documents, fitness tracking, and comparing heights across measurement systems.
Formula
Formula
cm = (feet × 12 + inches) × 2.54
1 inch = 2.54 cm exactly. To convert feet and inches to cm: first convert feet to inches (multiply by 12), add any remaining inches, then multiply by 2.54. To reverse: divide cm by 2.54 to get total inches, then divide by 12 to split into feet and inches.
Worked example
Convert 5 feet 9 inches to centimeters.
- 1.Total inches: (5 × 12) + 9 = 60 + 9 = 69 inches
- 2.Centimeters: 69 × 2.54 = 175.26 cm
- 3.Meters: 175.26 ÷ 100 = 1.753 m
5 ft 9 in = 175.26 cm = 1.753 m.
Assumptions and limitations
- Uses the exact definition: 1 inch = 2.54 cm.
- In feet-to-cm mode, the calculator uses only the Feet and Inches inputs.
- In cm-to-ft mode, only the Centimeters input is used.
- Inches output is always rounded to 1 decimal for readability.