Length is the measurement of the distance between two points or the endpoints of an object. The SI unit of measurement of length is the meter (m). Length can be measured in units like meters, centimeters, kilometers, inches, and more.
Length can be measured using rulers or tape. In daily life, a centimeter scale is often used to measure length.
Length can be expressed in terms of kilometers (km), meters (m), decimeters (dm), centimeters (cm), and millimeters (mm). The meter (m) is divided into 100 equal parts, each part known as a centimeter or cm.
Different countries use different measurement systems. It’s helpful to know how to state an object’s length in both metric and imperial units.
What are the 7 units of length?
The metric system uses the following units of length:
Kilometer, Hectometer, Decameter, Meter, Decimeter, Centimeter, Millimeter.
The base unit is the meter. You can convert units from kilometers to meters, or from meters to centimeters, and so on.
The U.S. Standard System uses the following units of length: Inches, Feet, Yards, Miles.
The International system of units (SI) is the most common system of units used by the international scientific community. There are seven SI base units.
What are the 7 basic units of measurement?
The seven basic units of measurement in the International System of Units (SI) are:
- Meter (m): Length
- Second (s): Time
- Kelvin (K): Temperature
- Mole (mol): Amount of substance
- Kilogram (kg): Mass
- Candela (cd): Luminous intensity
- Ampere (A): Electric current
The SI is a coherent system of units of measurement. Fundamental quantities are independent physical quantities that cannot be expressed in terms of any other physical quantity.
Tools to measure Length
Rulers, Measuring tapes, Yardsticks, Meter sticks, Callipers, Screw gauges, Digital meters, Vernier calipers, Odometers.
The most precise tool for measuring length is the vernier caliper. This tool can be used to measure the diameter of a pipe.
The simplest length measurement tool is the ruler. The length is defined by printed marks or engravings on a stick. The maximum length of an ideal ruler is 30 cm.
There are many variations of measuring tools based on the needs of the measurement. Some tools are created to measure the thickness of paper, the diameter of bottles, or distance.