Volume Calculator

Pipe Volume (Annular/Hollow Cylinder)

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Outer Diameter (or Radius)

Inner Diameter (or Radius)

Length

Wall Volume (Material)

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Internal Bore Volume (Fluid)

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Also (Liters)

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Volume Formulas

Cylinder

V = π × r² × h

r = radius, h = height/length

Sphere

V = (4/3) × π × r³

r = radius (from center to surface)

Rectangular Box

V = L × W × H

L = length, W = width, H = height

Pipe (Annular Cylinder)

V_wall = π × (R_o² - R_i²) × L

V_bore = π × R_i² × L

R_o = outer radius, R_i = inner radius, L = length

Cone

V = (1/3) × π × r² × h

r = base radius, h = height (apex to base)

Unit Conversion (to Liters)

1 m³ = 1000 L | 1 cm³ = 0.001 L | 1 in³ = 0.01639 L | 1 ft³ = 28.317 L

Common reference for fluid capacity and tank sizing