MEASURE ONCE. PLAN YOUR PURCHASE.

Parabolic Barrel Profile Volume calculator.

Estimate a bulging container only when its supplied profile is parabolic.

MEASUREMENT

Your inputs

Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.

YOUR ESTIMATE

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A clear estimate starts here.

Enter your dimensions and product details to see the quantity and purchase breakdown.

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Formula and assumptions

BEHIND THE NUMBERS

How this calculation works.

Integrates the square of a explicitly stated parabolic radius profile. The model is not inferred from any three measurements of an arbitrary container.

V = πL(r² + 4rΔr/3 + 8Δr²/15)Calculated with normalised units

A worked example

Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.

Equal end diameters: 2 m
Midpoint diameter: 2 m
Axial length: 3 m

Profile capacity: 9.42 m³

Assumes radius r(t)=rEnd+4Δr·t(1−t). A real barrel with another profile needs measured stations, not this assumed shape.

Before you purchase

Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.

Integrates the square of a explicitly stated parabolic radius profile. The model is not inferred from any three measurements of an arbitrary container.

Dimensions, quantities, prices, timing and product properties are supplied by you. This tool does not select construction specifications or assess structural, electrical or hydraulic suitability.

Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.