Graduvex, a toolbox for the numbers behind hobbies

Why it surfaced

This is a notably focused collection of small calculators, from PoE budgets and telescope sampling to gas-canister duration and fishing-line backing. The homepage also makes a clear privacy promise: the tools are designed to be simple, fast, and free of data collection.

Graduvex offers online calculators for diving, astronomy, homelabs, cycling, electric mobility, camping, CNC machining, fishing, ceramics, and other technical pursuits.