Feet to Inches Converter
Convert feet to inches and back with fractional inch display (⅛, 1/16, 1/32). Includes ruler visualization, combined feet + inches output, and conversion reference table.
Feet and Inches Converter
Convert between feet + inches, centimeters, meters, and millimeters. Includes height comparison chart, famous heights reference, and feet-to-cm lookup table.
Height Presets
Feet + Inches⧉
5′ 10″
Combined imperial
Centimeters (cm)⧉
177.80
1 in = 2.54 cm
Meters (m)⧉
1.78
1 ft = 0.3048 m
Millimeters (mm)⧉
1,778.00
1 in = 25.4 mm
Total Inches⧉
70.00
Decimal inches
Total Feet (decimal)⧉
5.83
e.g., 5.833 ft
Yards⧉
1.94
1 yd = 3 ft
Kilometers⧉
0.00
1 km = 100,000 cm
Height Comparison
Danny DeVito (150 cm)
+28 cm
Avg. US woman (162 cm)
+16 cm
Avg. world adult (171 cm)
+7 cm
Avg. US man (176 cm)
+2 cm
Michael Jordan (198 cm)
−20 cm
Standard doorway (203 cm)
−25 cm
LeBron James (206 cm)
−28 cm
Yao Ming (229 cm)
−51 cm
Feet–Inches to Centimeters Table
| Feet′ In″ | Inches | cm | m |
|---|---|---|---|
| 4′ 0″ | 48 | 121.9 | 1.22 |
| 4′ 6″ | 54 | 137.2 | 1.37 |
| 5′ 0″ | 60 | 152.4 | 1.52 |
| 5′ 4″ | 64 | 162.6 | 1.63 |
| 5′ 6″ | 66 | 167.6 | 1.68 |
| 5′ 8″ | 68 | 172.7 | 1.73 |
| 5′ 10″ | 70 | 177.8 | 1.78 |
| 6′ 0″ | 72 | 182.9 | 1.83 |
| 6′ 2″ | 74 | 188 | 1.88 |
| 6′ 4″ | 76 | 193 | 1.93 |
| 6′ 6″ | 78 | 198.1 | 1.98 |
| 6′ 8″ | 80 | 203.2 | 2.03 |
| 7′ 0″ | 84 | 213.4 | 2.13 |
Planning notes, formulas, and examples
About the Feet and Inches Converter
The feet-and-inches system is the standard way to express height in the United States, and it is used informally in several other English-speaking countries. However, most of the world uses centimeters and meters. Converting between the two is non-trivial because feet-and-inches is a mixed unit — you must handle the feet and the inches separately.
This converter accepts input as feet + inches (separate fields), pure centimeters, millimeters, decimal inches, or meters. It outputs all of these plus a combined feet-and-inches display, decimal feet, yards, and kilometers. Height presets from 4′ 0″ to 6′ 6″ make it easy to check common human heights.
The height comparison chart shows how your value stacks up against famous reference heights from Danny DeVito (150 cm) to Yao Ming (229 cm), and the feet-to-cm lookup table provides a quick reference for 13 common heights. Whether you are filling out a medical form, buying clothes from an international retailer, or just curious how tall you are in metric, the page keeps the common height formats aligned.
When This Page Helps
Height in feet-and-inches is a mixed unit that makes metric conversion confusing. Keeping feet-and-inches, centimeters, meters, and reference heights together makes forms, shopping measurements, and medical records easier to complete accurately across unit systems.
How to Use the Inputs
- Choose input mode: feet + inches, cm, mm, inches, or meters.
- Enter feet and inches in separate fields, or a single value.
- Click a height preset for quick lookups.
- Adjust precision.
- Read all outputs including feet+inches, cm, m, mm, decimal feet, and yards.
- Compare against famous heights in the visual chart.
- Reference the feet-to-cm table for quick lookups.
Formula used
Total inches = (feet × 12) + inches
Centimeters = total inches × 2.54
Meters = centimeters ÷ 100Example Calculation
Result: 177.8 cm / 1.778 m
5′ 10″ = 70 inches × 2.54 = 177.8 cm = 1.778 m. This is the average height of a US adult male.
Tips & Best Practices
- Memorize 1 inch = 2.54 cm exactly. All feet-inches-to-cm conversions flow from this one fact.
- 5′ 0″ = 152.4 cm. Add 2.54 cm for each additional inch.
- Height on a US driver's license is in feet-inches. Medical records often use cm.
- Passport applications may require height in centimeters — the page keeps the conversion straight.
- The average US woman is 5′ 4″ (162.6 cm) and the average US man is 5′ 9″ (175.3 cm).
- For clothing sizes, measure height in cm for the most accurate international fit.
Understanding the Feet-and-Inches System
Feet-and-inches is a mixed-radix system: 12 inches make 1 foot. When you say "5 feet 10 inches," you mean 5 × 12 + 10 = 70 inches total. To convert to metric, multiply total inches by 2.54 to get centimeters. The extra step of separating feet and inches makes this conversion easy to mishandle without a calculator.
Height Around the World
Average adult height varies significantly by country. The Netherlands has the tallest average (183.8 cm for men), while countries in Southeast Asia average around 162 cm for men. International height data is always in centimeters, making conversion essential for comparison.
Medical and Aviation Uses
US medical records increasingly use centimeters alongside feet-inches. The FAA requires pilot height in inches for medical certificates. International flight physicals use centimeters. Being able to convert accurately between the systems is important for healthcare, sports physicals, and professional requirements.
Sources & Methodology
Last updated:
Frequently Asked Questions
170.18 cm. (5 × 12 + 7) × 2.54 = 67 × 2.54 = 170.18.
170 ÷ 2.54 = 66.93 inches. 66 ÷ 12 = 5 feet remainder 6.93 inches ≈ 5′ 7″.
Slightly above average in the US (average is 5′ 9″ / 175.3 cm), but above average globally (171 cm).
182.88 cm. 72 inches × 2.54 = 182.88.
Robert Wadlow at 8′ 11.1″ (272 cm). He grew continuously until his death in 1940 at age 22.
The US adopted the British imperial system and never fully transitioned to metric. Height in feet-inches persists culturally even though metric is used in science and medicine.
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