Calcula DV is a free Chrome add-on developed by Etson Mora J. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This handy tool allows users to obtain the digit verifier from the mantissa of a RUT (Rol Único Tributario), which is a unique identification number used in Chile.

With Calcula DV, users can easily calculate the digit verifier for any given RUT mantissa. The program provides a simple and intuitive interface where users can enter the mantissa and instantly obtain the corresponding digit verifier. This can be extremely useful for individuals or businesses that frequently work with RUT numbers and need to ensure their accuracy.

Calcula DV is a reliable and efficient tool for calculating RUT digit verifiers. Its straightforward interface and accurate results make it a valuable addition to any Chrome user's toolbox.