Helical Wrap Length calculator.
Measure strip length in a specified helix rather than a straight perimeter.
Your inputs
Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.
A clear estimate starts here.
Enter your dimensions and product details to see the quantity and purchase breakdown.
Formula and assumptions
How this calculation works.
Unrolls one turn into a right triangle using circumference and axial advance. Partial final turns are included as a fraction of the same helix.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- Supplied wrapping centreline diameter
- 0.32 m
- Axial distance
- 3 m
- Specified advance per complete turn
- 1 m
- Total extra strip length at ends
- 0 m
- Usable roll length
- 2 m
Whole strip rolls: 3
Pitch and centreline diameter are supplied. Width, overlap, adhesion and suitability are not inferred; separate rolls are not assumed to join into one uninterrupted piece.
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.
Unrolls one turn into a right triangle using circumference and axial advance. Partial final turns are included as a fraction of the same helix.
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.