fend ☆

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Description:
Arbitrary-precision unit-aware calculator

Type: Formula | Latest Version: 1.5.7@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: calculator cli math unit-conversion rust

Install: brew install fend

About:
fend is a general-purpose arbitrary-precision calculator that understands unit conversions and mathematical constants. It provides a seamless, interactive command-line interface for performing calculations with physical units, such as converting between metric and imperial systems. Its core value proposition is delivering a powerful, scriptable, and dependency-light alternative to traditional desktop calculator applications.

Key Features:

Arbitrary-precision arithmetic for high accuracy
First-class unit and currency support with automatic conversions
Interactive shell with variables, functions, and history
Statically linked for easy installation and portability

Use Cases:

Performing engineering calculations with automatic unit conversions
Quickly scripting math problems in the terminal without a heavy environment
Serving as a daily driver for financial or scientific computations

Alternatives:

bc – fend offers built-in unit support and a more modern syntax, whereas bc requires manual handling of units.
WolframAlpha – fend is offline, private, and faster for simple queries, while WolframAlpha is a web-based knowledge engine.

License: MIT

Dependencies: openssl@3

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, sonoma, ventura, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Sep 13, 2025 7:56pm		0	VERSION_BUMP	13e480db
Sep 13, 2024 4:31am		0	VERSION_BUMP	d39bf405