Unit Converter Desktop

Purpose: Offline unit conversions for technical work. The tool enables accurate, repeatable value transformations between units without internet access. It targets engineers, researchers, students, and technicians performing quick checks in notes or spreadsheets. Example: 12.5 cm → 4.92 in.
Core Logic: Maintains a catalog of units across dimensions (length, mass, volume, area, temperature, time, data, energy, speed). It enforces dimensional consistency, provides value results, and supports advanced uses such as batch conversions and custom units.
Inputs/Outputs: Inputs include amount (float), from_unit and to_unit (strings); outputs provide value (float) and a display-ready string, with validation for numeric inputs and unit existence.
Algorithms: Uses canonical base units per dimension; general case: value = amount × factor(from_unit) ÷ factor(to_unit). Temperature uses offsets (C, F, K) with absolute-zero checks.
Error Handling: Unknown units, missing inputs, or cross-dimension requests trigger explicit errors. Negative values allowed where meaningful; extreme values are handled by precision rules.
Localization: Supports SI and common imperial units; default numeric format uses dot decimal; locale-aware options can be added in advanced setups.
Assumptions: Catalog is complete; excludes currency and nonlinear unit systems.