Feet and Inch Calculator
Convert quickly between feet + inches, total inches, and centimeters.
Why use a feet and inch calculator?
Height and length are often written in different unit systems depending on where you live, what field you work in, and what forms you are filling out. A feet and inch calculator helps you convert measurements accurately without doing mental math every time.
It is especially useful for tasks like clothing measurements, fitness tracking, room planning, and school or engineering assignments where unit consistency matters.
How to use this calculator
1) Feet + Inches mode
Choose Feet + Inches → cm, meters, inches. Enter feet and inches, then click Calculate. You will get:
- Total inches
- Centimeters (cm)
- Meters (m)
- Normalized feet and inches (for example, 5 ft 14 in becomes 6 ft 2 in)
2) Total Inches mode
Choose Total Inches → feet + inches, cm. Enter a value like 70 inches to convert it into standard feet-and-inches format and metric units.
3) Centimeters mode
Choose Centimeters → feet + inches, inches. Enter centimeters to instantly see both imperial forms.
Core conversion formulas
These are the formulas used behind the scenes:
- Total inches = (feet × 12) + inches
- Centimeters = total inches × 2.54
- Meters = centimeters ÷ 100
- Feet = floor(total inches ÷ 12)
- Remaining inches = total inches − (feet × 12)
Common examples
- 5 ft 10 in = 70 in = 177.8 cm
- 6 ft 0 in = 72 in = 182.88 cm
- 165 cm ≈ 5 ft 4.96 in
- 180 cm ≈ 5 ft 10.87 in
Where this helps in real life
Health and fitness
Many BMI calculators require metric inputs while people often know their height in feet and inches. This tool bridges that gap quickly.
Home improvement
Furniture dimensions may be listed in inches while room plans use feet. Instant conversion reduces mistakes when measuring clearances.
Travel and documents
Applications and forms in different countries may ask for height in cm. Convert confidently and avoid entry errors.
Tips for accurate results
- Use decimal inches when needed (example: 5.5 in).
- Double-check whether a form asks for cm or meters.
- Do not enter negative values.
- When precision matters, keep 2–3 decimal places.
Final thoughts
A good feet and inch calculator saves time, avoids conversion errors, and makes unit switching effortless. Whether you are checking height, planning a project, or filling out paperwork, using one trusted calculator is faster and safer than manual arithmetic.