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# Material Calculator - Size and Weight Conversion

A calculator for estimating the weight (mass), density or size of a body. The body shape can be a cubic or a sphere, choose the best fitting form. Enter at weight, density and size two of the three values and click Calculate.

 Weight (mass): g (grams)kg (kilograms)t (tons)kt (kilotons)Mt (megatons) Density: kg/m³ (kilograms per cubic meter)g/cm³ (grams per cubic centimeter) Size: mm (millimeters)cm (centimeters)inchesm (meters) edge length Shape: cube sphere   Material: airwaterrock, glassiron

Example: the meteorite, which caused the Barringer Crater, is estimated to 300 kilotons weight and a diameter of 45 meters. With a spherical shape, it would have had an average density of 6.288 g/cm³.

Here you can calculate the volumes of different solids.

Mass is a fundamental property of matter, it is what causes gravity, i.e. the force of attraction. If a body does not change, then the mass remains the same. Mass is given in kilograms and similar units. Weight, on the other hand, is a force that acts between two masses, in the above example between the meteorite and the earth. Weight is correctly given in newtons. In colloquial language, however, mass and weight are often used synonymously, in the sense of something weighs so many kilograms. This can be done because we mostly stay on earth and refer to it in our calculations. On earth, the mass of one kilogram corresponds on average to a force of 9.81 newtons, this value results from the earth's gravitational acceleration. In other places in space, the weight for the same mass is different, the higher the mass, the greater its gravity.
Density is the mass per volume. Denser substances of the same size are more massive, and therefore heavier, if they are in the same place where gravity is present. Denser substances are colloquially said to be heavier, this generally assumes the same volume.

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