Metal Circle Weight Calculator

By Anowar

Reviewed by Jasmine

This is a simple weight calculator for circle of metals and you can Calculate the weight of a circle based on its diameter, thickness, and material.

This advanced circle weight calculator helps you calculate the weight of circular of metals. It supports multiple units (mm, cm, inches), various materials (20 metal types), and provides instant weight calculations in both metric (kg) and imperial (lbs) units.

Circle Weight Calculator Image

Therefore, it is the perfect tool for metallurgical, storekeeping, engineering and material estimation projects. To calculate weight select measurement unit (mm, cm, inch), enter circle diameter, thickness, material type and click the button.

How it Works

This Circle Weight Calculator uses basic geometry and material density to calculate the weight of a metal circle based on the diameter, thickness, and metal you choose. Here's a step-by-step description of how the calculator works:

Formula Breakdown:

Weight = π × (Diameter/2)² × Thickness × Density

  • π (Pi): Mathematical constant approximately equal to 3.14159
  • Diameter: The length across the circle through its center
  • Thickness: The depth or height of the circular object
  • Density: Mass per unit volume of the material (g/cm³)

Unit Conversions:

  • Millimeters to Centimeters: Divide by 10
  • Inches to Centimeters: Multiply by 2.54
  • Grams to Kilograms: Divide by 1000
  • Grams to Pounds: Divide by 453.59237
Calculation Steps:
  1. Convert input dimensions to centimeters (if needed)
  2. Calculate radius by dividing diameter by 2
  3. Calculate circle area using π × radius²
  4. Multiply area by thickness to get volume
  5. Multiply volume by material density to get mass in grams
  6. Convert final weight to both kilograms and pounds
Example Calculation:

For a steel circle (density 7.85 g/cm³) with:

  • Diameter: 10 cm
  • Thickness: 1 cm

The calculation would be:

  1. Radius = 10/2 = 5 cm
  2. Area = π × 5² = 78.54 cm²
  3. Volume = 78.54 × 1 = 78.54 cm³
  4. Weight = 78.54 × 7.85 = 616.54 grams
  5. Final weight = 0.617 kg or 1.359 lbs
FAQs
The weight is calculated by multiplying the area of the circle (π × (diameter/2)²) by the thickness and the density of the selected material.
Each material has a unique density based on its atomic structure and composition. For example, aluminum (2.7 g/cm³) is much lighter than steel (7.85 g/cm³), which makes it preferred in applications where weight reduction is important.
The calculations are based on standard material densities and geometric formulas, providing accuracy suitable for general engineering and design purposes. However, for critical applications, consider factors like material grade variations and manufacturing tolerances.
Yes! Once you know the weight, you can multiply it by the current market price per weight unit of your chosen material. However, remember that final costs may include additional factors like manufacturing, finishing, and overhead costs.
You can select from three units:
  • Millimeters (mm)
  • Centimeters (cm)
  • Inches (inch)
Results are always shown in kilograms (kg) and pounds (lbs).

Anowar
Author:
Hi, I am Anowar, and more than 10 years of experience and good knowledge of mathematical applications. We create user-friendly tools that are useful in our everyday calculations.