KC's formula App relates to civil engineering and instrumentation. More specifically by installing this app, your android device will act like a portable and mini electronic device to calculate steel rod length in civil construction. This App is based on the KC's formula invented by Professor Karam Chand Gupta of Chandigarh University, India. This is the first time that such an app launched that can calculate quantity of steel bar placed in mesh form in circular, slab or dome. Abstract - When