KSI to HRC Conversion Calculator

Convert Ksi (Kilopounds per Square Inch) to HRC (Hardness Rockwell C) using the standard conversion formula.

Input Parameters

Calculation Results

Calculation Formula

HRC = -3.308 * Log₁₀(ksi) + 9.564

Where:
HRC - Rockwell Hardness C scale
Ksi - Hardness in Kilopounds per Square Inch

KSI to HRC Conversion Calculator Calculator Usage Guide

Learn how to use the KSI to HRC Conversion Calculator and its working principles

How to Use the Calculator

  1. Enter the value in Ksi (Kilopounds per Square Inch) in the input field.
  2. Click the "Calculate" button to convert the value to HRC (Hardness Rockwell C).
  3. The converted value will be displayed in the HRC field.
  4. Click "Reset" to clear all input fields and results.

Understanding the Conversion Formula

The conversion from Ksi to HRC uses the following formula:

HRC = -3.308 * Log₁₀(ksi) + 9.564

This formula is derived from the relationship between the Rockwell hardness scale and the material's resistance to indentation, where Ksi represents the force applied in kilopounds per square inch.

When to Use This Calculator

This calculator is particularly useful in material science and engineering for:

  • Converting material hardness measurements between different scales
  • Comparing material properties in different unit systems
  • Quality control in manufacturing processes
  • Material selection for specific applications

Example

If a material has a hardness value of 200 Ksi, entering this value in the calculator will return an HRC value of approximately 8.43 (HRC = -3.308 * Log₁₀(200) + 9.564).