Kuriyama of America, Inc.
Your complete crimping resource

Industrial Hose Crimp Diameter Calculator

The KuriCrimp Industrial Hose Crimp Calculator provides the appropriate crimp diameter based on your hose and fitting dimensions. Enter your measurements in inches, and results will be provided in both inches and millimeters. It is highly suggested to use KOA Couplings and Ferrules, as they are specially designed to work together with Kuri Tec®, Tigerflex™ and Alfagomma® Industrial hose.


Grounding Wire Instructions

Required Measurements:


Suggested Crimp Diameter (Inches)

Suggested Crimp Diameter (Millimeters)

Crimp Diameter Formula

Crimp Diameter Formula = Hose OD - Hose ID + Shank OD + (2 x Ferrule/Sleeve Wall Thickness) + [ ( - Compression Percentage) x Hose OD - Hose ID) /100]

Important Note:

Crimp diameter calculations are to be used as a guide. Hydrostatic pressure testing of assemblies is recommended to ensure proper coupling retention. Always refer to the NAHAD Industrial Hose Assembly Guidelines for latest hose assembly and testing industry practices.