Decision Workspace
convert-units vs ucum-units vs conversions_rs
Side-by-side comparison of Rust crates
49
convert-units
experimentalv0.1.0
Convert between units of measurement (length, mass, volume, temperature, time, digital, ...) with a fluent API. A faithful port of the convert-units npm package. Zero dependencies.
53
ucum-units
experimentalv0.1.0
A total, conformance-tested implementation of UCUM (Unified Code for Units of Measure): parse, validate, analyze, compare and convert units.
51
conversions_rs
growingv1.2.1
A comprehensive unit conversion library, CLI tool, and WebAssembly module with full SI (International System of Units) support
Core Metrics
| convert-units | ucum-units | conversions_rs | |
|---|---|---|---|
| Health Score | 49 | 53 | 51 |
| Total Downloads | 15 | 577 | 360 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 0 |
| Releases | 1 | 1 | 2 |
| Last Updated | 20d ago | 40d ago | 260d ago |
| Age | 20d | 1m | 8m |
Health Breakdown
convert-units
Maintenance
12
Quality
15
Community
6
Popularity
1
Documentation
15
ucum-units
Maintenance
11
Quality
13
Community
11
Popularity
3
Documentation
15
conversions_rs
Maintenance
8
Quality
19
Community
6
Popularity
3
Documentation
15
Technical Details
| convert-units | ucum-units | conversions_rs | |
|---|---|---|---|
| Version | 0.1.0 | 0.1.0 | 1.2.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT | MIT OR Apache-2.0 |
| Dependencies | 0 | 5 | 6 |
| Crate Size | 15KB | 65KB | 76KB |
| Features | 0 | 0 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.81 | 1.89 | 1.70.0 |
| Owners | 1 | 3 (team) | 1 |
Links
Quick Verdict
- •ucum-units leads with a health score of 53/100, but none of the options score above 80.
- •convert-units, ucum-units are pre-1.0 — API may change.