Calculation is not the same as certainty
A calculation can be exact, approximate, numerical, symbolic, statistical, or model-dependent. Good technical work is not about pretending uncertainty disappears. It is about knowing what has been measured, what has been assumed, what precision is justified, and what answer the method can actually support. That makes the phrase intentionally overconfident in exactly the way technical people tend to appreciate.
Precision as personality
There is a recognizable kind of satisfaction in getting the geometry right, balancing the equation, tightening the tolerance, removing the extra branch, or watching a result converge. The finished answer may look simple, but the simplicity often sits on top of a lot of checking. “Calculated to Perfection” turns that process into identity rather than explanation.
Why wear it?
Because the line works on two levels. To everyone else it is a confident phrase. To the people who live around calculations, models, tolerances, and error bars, there is a second joke: perfection is usually the thing the calculation teaches you not to claim.
Wear what you know.
You are not wearing a random graphic. You are wearing something you know, understand, believe, study, build, play, or find worth thinking about. That is the idea behind every NerdWear Expression.