Volume Calculator

About This Volume Calculator

Calculate the volume of common 3D geometric shapes quickly and accurately. This free online volume calculator supports nine shapes: rectangular prism, cube, sphere, cylinder, cone, pyramid (square base), ellipsoid, hemisphere, and triangular prism.

How to Use

Select your shape, choose your input unit (inches, feet, millimeters, centimeters, or meters), enter the required dimensions, and get instant volume results. The calculator displays your volume in the input unit and automatically converts to all common volume units including cubic inches, cubic feet, cubic meters, liters, gallons, milliliters, fluid ounces, and cubic yards.

Volume Formulas

  • Rectangular Prism: V = L × W × H
  • Cube: V = s³
  • Sphere: V = (4/3)πr³
  • Cylinder: V = πr²h
  • Cone: V = (1/3)πr²h
  • Pyramid (Square Base): V = (1/3)b²h
  • Ellipsoid: V = (4/3)πabc
  • Hemisphere: V = (2/3)πr³
  • Triangular Prism: V = ½ × b × h × L

Common Applications

Volume calculations are essential in engineering design, manufacturing, construction, fluid mechanics, material estimation, shipping and logistics, and scientific research. Whether you need to determine tank capacity, material requirements, shipping container volumes, or fill quantities, this calculator provides quick and accurate results with comprehensive unit conversions.

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