Volume Calculator
Directory of 16 Dedicated Tools • 100% Free & Ad-Free

All Volume Calculators

Explore our complete suite of 16 dedicated 3D volume tools. Each calculator is mobile-first, starts clean with zero distractions, and provides live step-by-step arithmetic.

Basic 3D

Cube Volume Calculator

V = a^3

Calculate volume of cubic containers, storage boxes, and dice from side length.

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Basic 3D

Rectangular Prism / Box Volume Calculator

V = l \times w \times h

Calculate rectangular boxes, cargo containers, rooms, and packages.

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Curved Shapes

Cylinder Volume Calculator

V = \pi r^2 h

Calculate volume of round water tanks, industrial drums, columns, and circular pipes.

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Curved Shapes

Sphere Volume Calculator

V = \frac{4}{3} \pi r^3

Calculate volume and surface area of balls, globes, domes, and spherical tanks.

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Curved Shapes

Cone Volume Calculator

V = \frac{1}{3} \pi r^2 h

Calculate volume of funnels, conical mounds, traffic cones, and grain hoppers.

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Curved Shapes

Capsule Volume Calculator

V = \pi r^2 (\frac{4}{3}r + a)

Calculate volume of pharmaceutical capsules and industrial bullet pressure tanks.

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Curved Shapes

Spherical Cap / Dome Volume Calculator

V = \frac{\pi h}{6}(3r^2 + h^2)

Calculate volume of architectural domes, shallow bowls, dishes, and spherical cutoffs.

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Curved Shapes

Conical Frustum (Truncated Cone) Volume Calculator

V = \frac{\pi h}{3}(r_1^2 + r_1 r_2 + r_2^2)

Calculate volume of buckets, paper cups, planters, and tapered containers.

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Curved Shapes

Ellipsoid Volume Calculator

V = \frac{4}{3} \pi a b c

Calculate volume of rugby balls, watermelons, eggs, and oblate spheroids.

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Prisms & Pyramids

Square Pyramid Volume Calculator

V = \frac{1}{3} a^2 h

Calculate volume of square pyramids, pyramid roofs, and monuments.

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Prisms & Pyramids

Rectangular Pyramid Volume Calculator

V = \frac{1}{3} l w h

Calculate volume of rectangular pyramids and hip roofs.

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Prisms & Pyramids

Triangular Prism Volume Calculator

V = \frac{1}{2} b h l

Calculate volume of A-frame tents, wedges, Toblerone boxes, and roof trusses.

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Tanks & Pipes

Hollow Cylinder / Pipe Volume Calculator

V_{wall} = \pi (R^2 - r^2) h

Calculate pipe wall material volume and internal liquid capacity for plumbing & drainage.

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Curved Shapes

Torus (Donut / O-Ring) Volume Calculator

V = 2 \pi^2 R r^2

Calculate volume and surface area of donuts, o-rings, tire tubes, and magnetic toroids.

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Tanks & Pipes

Trapezoidal Prism / Trench / Trough Volume Calculator

V = \frac{a + b}{2} \times h \times l

Calculate volume of drainage swales, farm troughs, trenches, and canals.

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Tanks & Pipes

Horizontal Cylinder Tank (Liquid Fill Depth) Volume Calculator

V_{fill} = [r^2 \arccos(\frac{r-d}{r}) - (r-d)\sqrt{2rd - d^2}] \times L

Calculate exact liquid volume in horizontal cylindrical oil, fuel, and water storage tanks.

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3D Geometric Volume Formulas Quick Reference

Standard mathematical formulas and variable definitions for all 16 shapes

ShapeCategoryStandard FormulaVariablesTool Link
CubeBasic 3DV = a^3aCalculate →
Rectangular Prism / BoxBasic 3DV = l \times w \times hl, w, hCalculate →
CylinderCurved ShapesV = \pi r^2 hr, hCalculate →
SphereCurved ShapesV = \frac{4}{3} \pi r^3rCalculate →
ConeCurved ShapesV = \frac{1}{3} \pi r^2 hr, hCalculate →
CapsuleCurved ShapesV = \pi r^2 (\frac{4}{3}r + a)r, aCalculate →
Spherical Cap / DomeCurved ShapesV = \frac{\pi h}{6}(3r^2 + h^2)r, hCalculate →
Conical Frustum (Truncated Cone)Curved ShapesV = \frac{\pi h}{3}(r_1^2 + r_1 r_2 + r_2^2)r₁, r₂, hCalculate →
EllipsoidCurved ShapesV = \frac{4}{3} \pi a b ca, b, cCalculate →
Square PyramidPrisms & PyramidsV = \frac{1}{3} a^2 ha, hCalculate →
Rectangular PyramidPrisms & PyramidsV = \frac{1}{3} l w hl, w, hCalculate →
Triangular PrismPrisms & PyramidsV = \frac{1}{2} b h lb, h, lCalculate →
Hollow Cylinder / PipeTanks & PipesV_{wall} = \pi (R^2 - r^2) hR, r, hCalculate →
Torus (Donut / O-Ring)Curved ShapesV = 2 \pi^2 R r^2R, rCalculate →
Trapezoidal Prism / Trench / TroughTanks & PipesV = \frac{a + b}{2} \times h \times la, b, h, lCalculate →
Horizontal Cylinder Tank (Liquid Fill Depth)Tanks & PipesV_{fill} = [r^2 \arccos(\frac{r-d}{r}) - (r-d)\sqrt{2rd - d^2}] \times Lr, L, dCalculate →

Frequently Asked Questions

Common questions about 3D shapes, measurements, and unit conversions

Which calculator should I use for a shipping box or room?

Use the Box Volume Calculator (Rectangular Prism). Measure the length, width, and height in inches, feet, centimeters, or meters to calculate total cubic volume and fluid capacity.

How do I calculate volume in a round water tank?

If the tank stands vertically upright, use the Cylinder Volume Calculator. If the tank lies on its side horizontally and you want to measure liquid volume based on dipstick depth, use the Horizontal Tank Volume Calculator.

Can I mix different measurement units in the calculators?

Yes! Every individual calculator allows independent unit selection (inches, feet, cm, meters, yards, mm) for each dimension input. The system automatically converts them internally and outputs the exact volume in gallons, liters, cubic feet, cubic meters, and more.