**About Heat Input Calculator (Formula)**

Heat Input Calculator is a tool that is commonly used in the welding industry to calculate the amount of heat energy required to produce a weld. The heat input is a critical parameter in welding, as it affects the quality and strength of the weld.

**Heat Input Calculator uses the formula**

**Hi = A VS/L**

The formula consists of four variables, namely A, V, S, and L. A represents the welding current in amps, V represents the arc voltage in volts, S represents the welding time in seconds, and L represents the length of the weld in inches.

When these variables are plugged into the formula, the result gives the heat input required in Joules per inch of weld (J/in). This information can then be used to adjust the welding parameters to produce a high-quality weld with the required strength.

It’s important to note that the heat input required for a particular welding job depends on several factors, including the type and thickness of the materials being welded, the welding process used, and the position of the weld. Therefore, the Heat Input Calculator is a valuable tool that helps welding professionals ensure that the heat input is optimized for each specific welding job.