Assumptions
Inputs are in centimeters and assume smooth, cleanable contact surfaces without internal fixtures or surface roughness factors.
Equipment surface area
Add multiple shapes and calculate summed contact surface area for vessels, parts, and assemblies.
Summary
Select a geometry for each component, enter dimensions, and the calculator will return per-item and total surface areas. Add as many shapes as needed, then use the summed total to convert residue limits to surface-based limits or to document equipment exposure surfaces in validation protocols.
Equipment inputs
All dimensions are in centimeters. Add each contact surface and review the totals below.
Shape 1
Select geometry and enter dimensions.
Choose the base geometry for product contact surfaces.
Multiply surface area across duplicate parts or assemblies.
Enter dimensions to calculate surface area.
Add shapes and enter dimensions to see a total surface area.
Batch calculation for multiple shapes
Download the template, enter one shape per row, then upload to receive the computed surface areas.
Use cases
Document surface area for equipment trains, transfer parts, or single-use assemblies.