Updated December 14, 2020
By Paul Nelson
The thickness of an object is defined as the smallest of three descriptive measurements: height, width and length. If you're dealing with a rectangular prism, and if its volume and the area of one side are provided, you can use those two measurements to calculate its thickness. For example, if you know the volume of the slab of cement that forms your driveway and the driveway's surface area, you can calculate the slab's thickness. Just make sure that the object's area and volume are given in the same units of measure.
TL;DR (Too Long; Didn't Read)
To find an object's thickness, divide its volume by the area of one side:
volume ÷ area of side = thickness
Double-check that the area of one of the object's sides and volume are measured in the same units. For example, if the area is in inches squared and the volume is in feet cubed, the volume would need to be converted to inches cubed.
Divide the volume of the object by the area of one of the sides to attain the thickness. Suppose that the side area was 40 square inches and the volume was 80 cubic inches. You would then calculate:
\frac{80\text{ in}^3}{40\text{ in}^2}=2\text{ in}
The result, 2 inches, is your value for the thickness of the object.
Place the correct units onto the thickness measurement as it is only one-dimensional. For example, if the area was square inches, the units of the objects thickness would be (linear) inches. In the example, the thickness would be 2 inches.
FAQs
First, determine the total object volume (ft^3). Next, determine the total object area (ft^2). Next, gather the formula from above = T = V / A . Finally, calculate the Thickness.
How to calculate mass from area and thickness? ›
If you multiply density by volume you get mass. If you have a disk, its volume is its area x thickness, or πr2 x thickness. Multiply this volume by the density of the disk and voilà! mass of the disk.
What is the formula for effective thickness? ›
The following steps outline how to calculate the Effective Thickness. First, determine the actual width (in). Next, determine the angle of the armor (degrees). Next, gather the formula from above = ET = W / sin(a).
How to calculate area using thickness? ›
Theoretically, mass divided by density will give you volume, then dividing by the thickness will give you surface area.
What is the thickness of an object? ›
The width of an object is also sometimes defined as thickness (T). This generally occurs when the width of the object is significantly smaller than the other dimensions. Measuring thickness requires a tool with great precision such as calipers.
How to find volume with diameter and thickness? ›
The volume of a cylinder is given by the formula V=πr^2h where r is the radius and h is the thickness or height. If you have a vernier caliper you should be able to measure the dimensions quite accurately. But a ruler will give an approximate result.
Are thickness and volume the same? ›
The thickness of an object is defined as the smallest of three descriptive measurements: height, width and length. If you're dealing with a rectangular prism, and if its volume and the area of one side are provided, you can use those two measurements to calculate its thickness.
How do you calculate thickness from weight? ›
You can use the formula: weight = (length x width x thickness x density) + (length x width x checker thickness x density). The density of aluminium is approximately 2.7 g/cm^3 or 0.0975 lbs/in^3.
How to calculate volume with thickness? ›
How do I calculate the volume? Multiply the area by the thickness.
What is the formula for area? ›
Area Formulas
Area of a rectangle is the length times the width. Area of a parallelogram is base times the height. Area of a trapezoid is one half the sum of the two bases times the height. Area of a circle is π times the square of the radius.
Subtract the inside diameter from the outside diameter.
The difference between them is the thickness of the opposite walls combined. For example, if the outer diameter is 2 in (5.1 cm) and the inner diameter is 1.8 in (4.6 cm), subtract 1.8 in (4.6 cm) from 2 in (5.1 cm) to get 0.2 in (0.51 cm).
Are thickness and area the same? ›
Area in 2D is different from Area in 3D (Surface Area). Thickness aka Height falls in 3D space, Where Rectangle takes the form of a Cube. And Yes, Cubes with different Thickness can certainly have the same Surface Area(s).
How to calculate thickness using length and width? ›
If you know the weight of the plate and its area (length and width), you can calculate thickness. First divide the weight of the plate by the steel density. 7.85 g/cc - that would give the volume of the plate. Now divide the volume by the area and you get the thickness.
How do you measure the thickness of a thin object? ›
Screw gauge is an instrument used to accurately measure the thickness of a sheet of metal. It comprises a U-shaped frame fitted to a screwed spindle which is attached to a thimble. A scale graduated in mm is engraved parallel to the axis of the thimble. This is known as the pitch scale.
How do you calculate wall thickness? ›
Measure with a tape measure: This method works for walls that are easily accessible and have visible edges. Use a tape measure to measure the distance between the two sides of the wall, from one exterior surface to the other. This will give you the overall thickness of the wall.
Is volume and thickness the same? ›
Volume measures three-dimensional spaces; to volumize is to add fullness. Thick is the space between sides; to thicken is to make wider.
How do you calculate thickness in geology? ›
True thickness = outcrop length in traverse direction X sin (apparent dip + or - slope angle) . cos (true dip) divided by cos (apparent dip).
