🛢️ Tank Volume Calculator
Choose shape, enter dimensions, and get total & filled volume instantly. Buttons are full-width and mobile friendly.
Tip Pick the correct orientation (vertical/horizontal) for your tank.
Measured vertically from bottom (depth).
Total volume
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Filled volume
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Fill percentage
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🧮 Step-by-step derivation
Pick a shape and enter values to see formulas and substitutions.
📚 References & unit table
- Formulas follow common geometry.
| Quantity | Definition / Conversion |
|---|---|
| π | ≈ 3.141592653589793 |
| 1 m³ | = 1000 L = 35.3147 ft³ = 61,023.7441 in³ ≈ 264.172 US gal ≈ 219.969 UK gal |
| Length | 1 m = 100 cm = 1000 mm ≈ 3.28084 ft ≈ 39.3701 in |
Shapes supported: Vertical/Horizontal Cylinder, Rectangular Prism (box), Vertical/Horizontal Capsule, Vertical/Horizontal Oval (elliptical), Cone Bottom, Cone Top, and Frustum (truncated cone).