Convert between metric and imperial length and distance units
Length is a measure of distance. In the International System of Units (SI), the base unit of length is the metre (m). Other common metric units include millimetres (mm), centimetres (cm), and kilometres (km). Common imperial units include inches (in), feet (ft), yards (yd), and miles (mi).
The metric system is used in most countries worldwide. The imperial system remains common in the United States and still appears in many everyday situations such as height, road distances, and construction.
This free length converter makes it easy to convert between millimetres, centimetres, metres, kilometres, inches, feet, yards, and miles. It is useful for construction, engineering, schoolwork, travel, home improvement, and everyday measurements.
Whether the goal is to convert inches to centimetres, feet to metres, miles to kilometres, or metres to feet, this page provides both an instant calculator and reference information for common length conversions.
Some of the most frequently searched length conversions include quick comparisons between metric and imperial units.
To convert inches to centimetres, multiply the number of inches by 2.54. For example, 10 inches equals 25.4 centimetres. This is one of the most common conversions used for screen sizes, furniture, and personal measurements.
To convert feet to metres, multiply the number of feet by 0.3048. This is especially useful for height conversions, room dimensions, and construction measurements.
To convert miles to kilometres, multiply the number of miles by 1.60934. This conversion is commonly used for travel distances, running, cycling, and road navigation.
The metric system follows powers of ten, which makes it straightforward to convert between millimetres, centimetres, metres, and kilometres. The imperial system uses inches, feet, yards, and miles, which are still widely used in some countries and industries.
| Metric | Imperial |
|---|---|
| 1 mm | 0.03937 inches |
| 1 cm | 0.3937 inches |
| 1 metre | 3.28084 feet |
| 1 kilometre | 0.621371 miles |
| 1 inch | 2.54 cm |
| 1 foot | 30.48 cm |
| 1 yard | 0.9144 metres |
| 1 mile | 1.60934 km |
The table below gives common metre values converted to feet and feet and inches, using the standard conversion of 1 m = 3.28084 ft.
| Metres | Feet | Feet and inches |
|---|---|---|
| 1.0 m | 3.28 ft | 3 ft 3.4 in |
| 1.1 m | 3.61 ft | 3 ft 7.3 in |
| 1.2 m | 3.94 ft | 3 ft 11.2 in |
| 1.3 m | 4.27 ft | 4 ft 3.2 in |
| 1.4 m | 4.59 ft | 4 ft 7.1 in |
| 1.5 m | 4.92 ft | 4 ft 11.1 in |
| 1.6 m | 5.25 ft | 5 ft 3.0 in |
| 1.7 m | 5.58 ft | 5 ft 6.9 in |
| 1.8 m | 5.91 ft | 5 ft 10.9 in |
| 1.9 m | 6.23 ft | 6 ft 2.8 in |
| 2.0 m | 6.56 ft | 6 ft 6.7 in |
| 2.1 m | 6.89 ft | 6 ft 10.7 in |
| 2.2 m | 7.22 ft | 7 ft 2.6 in |
Feet are rounded to 2 decimal places. Inches are rounded to the nearest 0.1 in.
A good length converter saves time and reduces errors. Instead of manually remembering formulas, this tool gives instant results for both simple and technical conversions.
Length conversion is part of everyday life, from measuring furniture and rooms to checking travel distances and comparing product dimensions. This length converter is designed to make those conversions quick, clear, and accurate.
Use the calculator above to convert length units instantly and explore more free conversion tools across ConvertUnitsNow.com.