Length Converter
Metric, Imperial & real-world comparisons
Conversion Reference
| Conversion | Value |
|---|---|
| 1 inch | 2.54 cm (exact) |
| 1 foot | 30.48 cm |
| 1 yard | 0.9144 m |
| 1 mile | 1.60934 km |
| 1 nautical mile | 1.852 km |
| 1 meter | 3.28084 feet |
Frequently Asked Questions
How many centimeters are in an inch?
There are exactly 2.54 centimeters in 1 inch. This is a defined constant, not an approximation. So 12 inches (1 foot) = 30.48 cm, and 1 meter = 39.3701 inches. Example: a 6-foot person is 6 × 30.48 = 182.88 cm tall.
How do I convert miles to kilometers?
Multiply miles by 1.60934 to get kilometers. So 1 mile = 1.60934 km, and a marathon (26.2 miles) is about 42.195 km. Going the other way, divide km by 1.60934 (or multiply by 0.62137). A speed of 100 km/h equals about 62.1 mph.
What is the difference between a nautical mile and a regular mile?
A nautical mile is 1,852 meters (1.852 km), while a statute (land) mile is 1,609.34 meters (1.60934 km). Nautical miles are used in aviation and maritime navigation because 1 nautical mile equals exactly 1 arcminute of latitude, making chart calculations straightforward. 1 nautical mile is about 1.15 regular miles.
How many feet and inches is 175 cm?
175 cm divided by 30.48 gives 5 feet, then the remainder 175 – (5 × 30.48) = 22.6 cm divided by 2.54 gives about 8.9 inches. So 175 cm is approximately 5 feet 8.9 inches, usually stated as 5’9″. A quick shortcut: divide cm by 30.48 for total feet as a decimal.
How many meters are in a yard, and how does it differ from a foot?
1 yard = 0.9144 meters exactly, while 1 foot = 0.3048 meters. A yard equals 3 feet or 36 inches. The yard is commonly used in American football (a field is 100 yards). For fabric measurements, 1 yard is very close to 1 meter — about 91% of a meter — so a rough substitute in patterns.