Weight & Mass Converter
Table of Contents
Definition of Mass
Mass is a fundamental property of matter that represents the amount of substance present in an object. It is a measure of the inertia and resistance to acceleration of an object when subjected to an external force.
Mass is an intrinsic property, meaning it does not change with the location of the object or the forces acting upon it. The standard unit of mass in the International System of Units (SI) is the kilogram (kg), and it is widely used to quantify the amount of matter in objects across scientific, industrial, and everyday contexts.
Difference between Mass & Weight
In physics, mass is not the same as weight, even though mass is often determined by measuring the object's weight. An object on the Moon would weigh less than it does on Earth because of the lower gravity, but it would still have the same mass. This is because weight is a force, while mass is the property that (along with gravity) determines the strength of this force.
Unit of Mass (Weight)
Understanding and converting mass and weight measurements can be crucial for various applications, ranging from scientific calculations to everyday tasks. This educational article aims to provide a comprehensive overview of mass/weight units and their conversion Factors.

Kilogram (kg): The kilogram is the is the SI unit of mass in the metric system and is commonly used worldwide.
Conversion Factor: 1 kg = 1,000 g 
Gram (g): The gram is the base unit of weight in the metric system. It is equal to onethousandth of a kilogram.
Conversion Factor: 1 g = 0.001 kg 
Milligram (mg): The milligram is also unit of weight in the metric system. It is equal to onethousandth of a gram.
Conversion Factor: 1 mg = 0.001 g 
Metric Ton (t): The metric ton, also known as a tonne, is a unit of weight used in the metric system. It is equal to 1,000 kilograms.
Conversion Factor: 1 t (metric) = 1,000 kg 
Short Ton (t): The short ton is a unit of weight used in the United States for nonmetric purposes. It is equal to 2,000 pounds.
Conversion Factor: 1 t (short) = 2,000 lbs 
Long Ton (t): The long ton is a unit of weight used in the United Kingdom and other Commonwealth countries. It is equal to 2,240 pounds.
Conversion Factor: 1 t (long) = 2,240 lbs 
Quarter (qr): The quarter is a unit of weight used in agricultural contexts in the United States and the United Kingdom. The US quarter is equal to 25 pounds, while the UK quarter is equal to 28 pounds.
Conversion Factor: 1 qr (US) = 25 lbs; 1 qr (UK) = 28 lbs 
Stone: The stone is a unit of weight primarily used in the United States and the United Kingdom. It is equal to 0.5 quarter. In the US it is equivalent to 12.5 lbs and in the UK it is 14 lbs.
Conversion Factor: 1 stone (US) = 12.5 lbs; 1 stone (UK) = 14 lbs 
Pound (lbs): The pound is a unit of weight used in the United States and several other countries. It is equal to 16 ounces, or 0.4536 kilogram. To simplify the conversion between kilograms and pounds, it can be stated that 1 kg is equivalent to 2.2 lbs.
Conversion Factor: 1 lb = 16 oz 
Ounce (oz): The ounce is a unit of weight used in the United States and several other countries. It is equal to 1/16 of a pound.
Conversion Factor: 1 oz = 1/16 lbs 
Troy ounce (oz t): The troy ounce is a unit of weight primarily used for precious metals. It is equal to approximately 1.09714 ounces, or 31.1034768 grams.
Conversion Factor: 1 oz t = 0.91146 oz 
Carat (ct): The carat is a unit of weight used to measure the mass of gemstones and pearls. It is equal to 200 milligrams or 0.2 grams.
Conversion Factor: 1 ct = 0.2 g 
Grain (gr): The grain is a unit of weight commonly used for firearms and ammunition. It is equal to approximately 0.0648 grams, or 1/7000 of a pound.
Conversion Factor: 1 gr = 0.0648 g 
Newton (N): The newton is a unit of force used in physics and engineering, but it can also be used as a unit of weight under standard gravity. It represents the force required to accelerate a onekilogram mass at a rate of one meter per second squared.
Conversion Factor: 1 N = 0.10197 kg, or 1 kg = 9.80665 N 
Metric Quintal (qq): The metric quintal is a unit of mass commonly used in agricultural and trading contexts. It is equal to 100 kilograms.
Conversion Factor: 1 qq = 100 kg 
Pound, Ounce (lbs.oz): This is a special unit in CalcKit, that combines the pound and ounce units together, separated by a decimal point. For example: 5lbs 3oz can be written as 5.03 lbs.oz, or 3lbs 11oz as 3.11 lbs.oz.
With our comprehensive mass and weight converter tool, you now have the knowledge to effortlessly convert between a wide range of units. Remember, mass and weight conversion is essential for accurate measurements and understanding different systems of measurement. Whether you're working in the metric or imperial system, this tool will be your goto resource, enabling you to navigate conversions with ease.