mag 0.4.0 - Docs.rs

Mag is a library for dealing with physical quantities and units.

Quantities are created by multiplying scalar values by a unit type. These units are named after common abbreviations:

use mag::{length::{ft, m, mi}, time::{h, s}};

let a = 1.0 * ft; // Length<ft>
let b = a.to::<m>(); // convert to Length<m>
let c = 30 * s; // Period<s>
let d = 60.0 / s; // Frequency<s>
let e = 55.0 * mi / h; // Speed<mi, h>

assert_eq!(a.to_string(), "1 ft");
assert_eq!(b.to_string(), "0.3048 m");
assert_eq!(c.to_string(), "30 s");
assert_eq!(d.to_string(), "60 ㎐");
assert_eq!(e.to_string(), "55 mi/h");

Highlights

Easy to understand and use
No external dependencies
Fast compile time
Units are not discarded when creating quantities

Alternative

If mag doesn't fit your needs, you could try the uom crate, which has many more features.