Units is a command-line utility for converting quantities between thousands of physical and monetary units. It is aimed at technical users who need precise, scriptable conversions, including compound, nonlinear, and user-defined units.
💡 Pick it for a graphical calculator with deeper algebra, currency, and unit support than Units.
Qalculate! is a versatile calculator with a focus on easy-to-use interface and extensive mathematical functions.
💡 Pick it for natural-language queries and broader scientific answers without installing a command-line tool.
WolframAlpha is a computational knowledge engine that provides answers to factual queries by computing the answer from structured data.
Free basic version, Pro version available for a subscription fee
💡 Pick it for an offline graphical converter with custom and compound-unit support.
ConvertAll is a unit conversion software that allows you to convert between different units of measurement.
Numbat contributors
💡 Pick it for typed quantities, dimensional checking, and programmable terminal calculations.
Numbat is a free, open-source scientific calculator language with first-class support for units and quantities. It targets programmers, scientists, and terminal users...
💡 Pick it for unit-aware programming and complex calculations beyond ordinary conversions.
Frink is a practical calculating tool and programming language designed to help in physical calculations.
Unitto contributors
💡 Pick it for a simple, private, open-source converter on mobile or desktop.
Unitto is a free, open-source unit converter designed primarily for mobile and desktop users. It provides a focused interface for everyday measurement...
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