reda-unit

A Rust library for physical units with compile-time safety and automatic unit conversions.

• Supports SI units and common derived units
• Strongly typed unit-safe arithmetic
• Convenient macros for constructing quantities, e.g. u!(10. mV)
• Built-in physical formulas and unit relations, e.g. Ohm's law, power, energy

Example

use reda_unit::u;

fn main() {
    let voltage = u!(5.0 V);
    let resistance = u!(10. Ω);
    let current = voltage / resistance; // Automatically inferred as Current
    println!("Current = {}", current); // prints: Current = 0.5A
}

Supported Units

You can create quantities with the u! macro using units below (including common prefixes):

Physical Formulas Implemented

The library supports unit-safe versions of common physical relations, for example:

• Ohm's Law: $$ V = I \times R $$

• Power: $$ P = V \times I $$

• Energy from power and time: $$ E = P \times t $$

• Charge from capacitance and voltage: $$ Q = C \times V $$

• Current from charge and time: $$ I = \frac{Q}{t} $$

• Power from force and velocity: $$ P = F \times v $$

• Energy from force and distance: $$ E = F \times d $$

• Pressure from force and area: $$ P = \frac{F}{A} $$

• Magnetic flux from flux density and area: $$ \Phi = B \times A $$

• Voltage from magnetic flux and time: $$ V = \frac{\Phi}{t} $$