how to find volume of a cone

Cone Calculator

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Units

Significant Figures

Cone Shape

r = radius
h = height
s = slant height
V = volume
L = lateral surface area
B = base surface area
A = total surface area
π = pi = 3.1415926535898
√ = square root

Calculator Use

This online calculator will calculate the various properties of a right circular cone given any 2 known variables. The term "circular" clarifies this shape as a pyramid with a circular cross section. The term "right" means that the vertex of the cone is centered above the base. Using the term "cone" by itself often commonly means a right circular cone.

Units: Note that units are shown for convenience but do not affect the calculations. The units are in place to give an indication of the order of the results such as ft, ft² or ft³. For example, if you are starting with mm and you know r and h in mm, your calculations will result with s in mm, V in mm³, L in mm², B in mm² and A in mm².

Below are the standard formulas for a cone. Calculations are based on algebraic manipulation of these standard formulas.

Circular Cone Formulas in terms of radius r and height h:

• Volume of a cone:
  • V = (1/3)πr²h
• Slant height of a cone:
  • s = √(r² + h²)
• Lateral surface area of a cone:
  • L = πrs = πr√(r² + h²)
• Base surface area of a cone (a circle):
  • B = πr²
• Total surface area of a cone:
  • A = L + B = πrs + πr² = πr(s + r) = πr(r + √(r² + h²))

Circular Cone Calculations:

Use the following additional formulas along with the formulas above.

• Given radius and height calculate the slant height, volume, lateral surface area and total surface area.
  Given r, h find s, V, L, A
  • use the formulas above
• Given radius and slant height calculate the height, volume, lateral surface area and total surface area.
  Given r, s find h, V, L, A
  • h = √(s² - r²)
• Given radius and volume calculate the height, slant height, lateral surface area and total surface area.
  Given r, V find h, s, L, A
  • h = (3 * v) / (πr²)
• Given radius and lateral surface area calculate the height, slant height, volume and total surface area.
  Given r, L find h, s, V, A
  • s = L / (πr)
  • h = √(s² - r²)
• Given radius and total surface area calculate the height, slant height, volume and lateral surface area.
  Given r, A find h, s, V, L
  • s = [A - (πr²)] / (πr)
  • h = √(s² - r²)
• Given height and slant height calculate the radius, volume, lateral surface area and total surface area.
  Given h, s find r, V, L, A
  • r = √(s² - h²)
• Given height and volume calculate the radius, slant height, lateral surface area and total surface area.
  Given h, V find r, s, L, A
  • r = √[ (3 * v) / (π * h) ]
• Given slant height and lateral surface area calculate the radius, height, volume, and total surface area.
  Given s, L find r, h, V, A
  • r = L / (π * s)
  • h = √(s² - r²)

References

Weisstein, Eric W. "Cone." From MathWorld--A Wolfram Web Resource.
http://mathworld.wolfram.com/Cone.html

how to find volume of a cone

Source: https://www.calculatorsoup.com/calculators/geometry-solids/cone.php

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