The Weight of Metal Sphere or Ball calculator computes the mass or weight of a sphere shaped object such as a ball 
based on the diameter (D) and the mean density of the metal (ρ), where the default density is 7,850 kg/m3 for density of steel.
INSTRUCTIONS: Choose units and enter the following:
- (D) Diameter of Sphere
- (ρ) Density of Sphere
Weight of Metal Sphere (m) : The calculator returns the mass of the sphere in grams (g). However, this can be automatically converted to other mass or weight units (e.g., kilograms, pounds, tons) via the pull-down menu next to the answer. NOTE: To find the mean density (ρ) of many common substances, elements, liquids and materials, CLICK HERE (e.g., the density of steel is 7,850 kg/m³) or see below for sample of other metal densities.
The Math / Science
The formula for the mass of a sphere:
M = 4/3⋅π⋅r³⋅mD
where:
- M is the mass of the sphere
- r is the radius of the sphere and half of the diameter (D)
- mD is the mean density of the material
The mass of a sphere calculator first computes the volume of the sphere based on the radius. With the computed volume, this formula then executes the simple equation below to compute the approximate mass of the object.
See the mean density (ρ) of many common substances
Above the formula for mass and volume of a sphere are combined.
Metals are materials characterized by its physical and chemical properties, primarily its ability to conduct electricity and heat, its luster or shine when polished, its malleability (ability to be hammered or pressed into shapes), and its ductility (ability to be drawn into wires). Metals typically have a crystalline structure and are found naturally in solid form (with the exception of mercury, which is a liquid at room temperature).
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Metals Densities
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Metals make up a large portion of the periodic table of elements, with examples including iron, copper, gold, silver, aluminum, and titanium, among many others. Metals are essential in various industries such as construction, manufacturing, electronics, transportation, and energy production due to their unique properties and versatility.
Metals are generally dense materials. Density is a measure of how much mass is contained in a given volume. Metals tend to have high densities because their atoms are closely packed together in a crystalline structure. This close packing of atoms contributes to their characteristic properties such as strength, malleability, and conductivity.
However, it's important to note that the density of metals can vary widely depending on factors such as their elemental composition, crystal structure, and any impurities present. For example, some metals like lead and platinum are denser than others like aluminum or magnesium.
The Weight of Metal Calculator contains functions and data to compute the weight (mass) of metal objects based on their size, shape and the density of the metal. The Weight of Metal functions are:
- Cylinder Weight: Computes the weight (mass) of a cylinder based on the radius, length (height) and density of metal.
- Sphere Mass: Computes the mass (weight) of a sphere based on the radius and density of metal.
- Hemisphere Mass: Computes the mass (weight) of a hemisphere based on the radius and density of metal.
- Weight of Metal Bars: Computes the mass (weight) of a number of metal flats or metal bars based on the dimensions and density of metal.
- Weight of Metal Rods: Computes the mass (weight) of a number of metal rods based on the dimensions and density of metal.
For the mean densities of other substances click HERE.
Sphere Calculators
- Sphere Surface Area based radius (r)
- Sphere Surface Area from Volume
- Sphere Volume from Radius
- Sphere Volume from Circumference
- Sphere Volume from Surface Area
- Sphere Volume from Mass and Density
- Sphere Radius from Volume
- Sphere Radius from Surface Area
- Sphere Weight (Mass) from volume and density
- Sphere Density
- Area of Triangle on a Sphere
- Distance between Two Points on a Sphere
- Sphere Cap Surface Area
- Sphere Cap Volume
- Sphere Cap Weight (Mass)
- Sphere Segment Volume
- Sphere Segment Weight (Mass)
- Sphere Segment Wall Surface Area (without the circular top and bottom ends)
- Sphere Segment Full Surface Area (with the top and bottom circles, aka ends)
- Volume of Spherical Shell
- Mass of Spherical Shell
A word on Mass and Weight
Converting from mass to weight is trivial under the right conditions. Fortunately those conditions are generally true anywhere on the surface of the Earth, so the conversions built into the vCalc unit conversion engine can be assumed to be fairly accurate unless you require weight at very high altitudes or in space.
Weight is technically the downward force that a mass exerts based on the force of gravity and the mass of the object. On the surface of the Earth, mass and weight are often interchanged. In some places, objects are sold by the gram (mass), and in other locations, the same objects are sold by the ounce (weight). 
The Weight Calculators use the dimensions of an object and its shape to compute the objects volume. They then apply a density associated with a material to estimate the objects weight.
Weight Calculators
- Weight from Area, Height and Density
- Cube Weight
- Box Weight
- Cone Weight
- Cone Frustum Weight
- Cylinder Weight
- Slanted Cylinder Weight
- Semicircle Weight
- Triangular Weight
- Quadrilateral Weight
- Pentagon Weight
- Hexagon Weight
- Heptagon Weight
- Octagon Weight
- Nonagon Weight
- Decagon Weight
- Hendecagon Weight
- Dodecagon Weight
- Paraboloid Weight
- Polygon Pyramid Frustum Weight
- Sphere Mass
- Sphere Cap Weight
- Sphere Segment Weight
- Sphere Shell Mass
- Oblate Spheroid Mass
- Ellipsoid Weight
- Torus Weight
- Bottle Weight
- Bottle Content Weight
- Chamfer Weight
- Ring Weight