CalcThis is a calculator manufacturing company appearing in Grand Theft Auto: Vice City Stories.
Description[]
The company's headquarters are not found in-game. In most businesses, a box full of CalcThis calculators can be found next to the cash register. In the GTA Vice City Stories website a CalcThis calculator can be seen with the numbers "55318008", which upside down in the calculator looks like it reads "Boobless".
CalcThis might be reminiscent of Casio, another electronics manufacturer known for its calculators.