About Length Conversion

Length is a measure of distance. In the International System of Units (SI), the base unit of length is the meter. The meter is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second.

Length conversion is one of the most common types of unit conversion. Whether you're working on a construction project, following a recipe from another country, or studying science, you'll often need to convert between different length units.

Common Length Units:

• Metric System: Millimeter (mm), Centimeter (cm), Meter (m), Kilometer (km)
• Imperial System: Inch (in), Foot (ft), Yard (yd), Mile (mi)

Quick Conversion Facts:

• 1 inch = 2.54 centimeters
• 1 foot = 30.48 centimeters
• 1 meter = 3.281 feet
• 1 kilometer = 0.621 miles
• 1 mile = 1.609 kilometers