Length Converter: cm to Inches, Feet & Meters
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Type a value, pick the units, and see the result in every common unit at once — inches, feet, yards, miles, millimeters, centimeters, meters, kilometers and nautical miles.
Use it for clothing and waist sizes, height in feet and inches, screen sizes, running distances, or any DIY measurement that mixes US and metric units.
30 cm = 11.811024 in
30 cm in every unit
- Inches
- 11.811024 in
- Feet
- 0.98425197 ft
- Yards
- 0.32808399 yd
- Miles
- 0.0001864114 mi
- Millimeters
- 300 mm
- Meters
- 0.3 m
- Kilometers
- 0.0003 km
- Nautical miles
- 0.000161987 NM
Centimeters to inches chart
| cm | inches |
|---|---|
| 1 cm | 0.3937 in |
| 2 cm | 0.7874 in |
| 5 cm | 1.969 in |
| 10 cm | 3.937 in |
| 15 cm | 5.906 in |
| 20 cm | 7.874 in |
| 25 cm | 9.843 in |
| 30 cm | 11.81 in |
| 50 cm | 19.69 in |
| 100 cm | 39.37 in |
Inches to centimeters chart
| inches | cm |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 6 in | 15.24 cm |
| 12 in | 30.48 cm |
| 24 in | 60.96 cm |
| 28 in | 71.12 cm |
| 30 in | 76.2 cm |
| 32 in | 81.28 cm |
| 34 in | 86.36 cm |
| 36 in | 91.44 cm |
Height chart: feet and inches to cm
| Height | cm |
|---|---|
| 4′ 10″ | 147.3 cm |
| 5′ 0″ | 152.4 cm |
| 5′ 2″ | 157.5 cm |
| 5′ 4″ | 162.6 cm |
| 5′ 6″ | 167.6 cm |
| 5′ 8″ | 172.7 cm |
| 5′ 10″ | 177.8 cm |
| 6′ 0″ | 182.9 cm |
| 6′ 2″ | 188 cm |
| 6′ 4″ | 193 cm |
Worked examples
30 cm to inches
- 30 ÷ 2.54
→ 11.81 in
5 ft 9 in to cm
- (5 × 12 + 9) × 2.54
→ 175.26 cm
170 cm to feet and inches
- 170 ÷ 2.54 = 66.93 in
- 66.93 ÷ 12 = 5 ft, remainder 6.9 in
→ 5 ft 6.9 in
10 km to miles
- 10,000 ÷ 1,609.344
→ 6.214 mi
How to convert cm to inches
- cm to inches: divide by 2.54 (or multiply by 0.3937).
- inches to cm: multiply by 2.54.
- feet to cm: multiply by 30.48 (12 × 2.54).
An inch is defined as exactly 2.54 centimeters, so the conversion is a single division or multiplication.
How to convert cm to feet and inches
- Divide the centimeters by 2.54 to get total inches.
- Divide total inches by 12 — the whole number is feet.
- The remainder is inches. Example: 180 cm = 70.87 in = 5 ft 10.9 in.
US customary and metric length units
- 1 foot = 12 inches = 30.48 cm
- 1 yard = 3 feet = 0.9144 m
- 1 mile = 1,760 yards = 1.609344 km
- 1 nautical mile = 1,852 m (used at sea and in aviation)
Frequently asked questions
How many centimeters are in an inch?
Exactly 2.54 cm. This value was fixed by international agreement in 1959, so 1 cm is about 0.3937 inches.
How do I convert cm to inches?
Divide the number of centimeters by 2.54. For example, 30 cm ÷ 2.54 = 11.81 inches.
What is 5 feet 9 inches in cm?
5 ft 9 in is 69 inches, and 69 × 2.54 = 175.26 cm.
How tall is 170 cm in feet?
170 cm is about 5 ft 6.9 in (5.577 ft).
How many kilometers are in a mile?
One mile is 1.609344 km, so a 5K race is about 3.11 miles and a marathon (42.195 km) is about 26.22 miles.
Is a TV or monitor size measured in inches across?
No — screen size is the diagonal. A 55-inch TV has a diagonal of 139.7 cm; its width and height depend on the aspect ratio.