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uom

v0.38.0 Growing

Units of measurement

Apache-2.0 OR MIT Edition 2021 MSRV 1.68.0
ScienceValue formattingNo standard library #units#no_std#measurement#si#dimensional-analysis

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (1.2K crates depend on it)
  • โœ“Permissive license (Apache-2.0 OR MIT)

Security

Checking security advisories...
Downloads
10.0M
Dependents
1.2K
Releases
34
Size
163KB

Deep Insights

๐Ÿ“Š
Steady growth

662.0K downloads in the last 30 days (22.1K/day), up 7% from the previous period.

๐Ÿ”—
Widely adopted

1.2K crates depend on uom. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

uom has only 1 owner despite 1.2K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 9+ years old, uom hasn't reached 1.0 yet. Expect potential API changes between versions.

๐ŸŒŸ
Used by top crates

Notable dependents include libmedium, starship-battery, battery, heim-common, rssn. When high-quality crates choose uom, it's a strong quality signal.

Health Breakdown

Maintenance 14/25

Recency, release consistency, active ratio

Quality 16/25

Yanked ratio, deps, size, maturity, features

Community 14/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
21K/day avg-2%
020K40K60K80K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.34.0
45%
v0.36.0
17%
v0.30.0
13%
v0.37.0
13%
v0.31.1
12%

Release Timeline

10 releasessince 2020
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2020
1
2021
2
2022
2
2023
2
2024
1
2025
1
2026
1
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More

Feature Flags

default =["autoconvert", "f32", "f64", "si", "std"]

i8si*u8f32*f64*i16i32i64std*u16u32u64i128u128isizeserdeusizebigintbiguintrationaltry-fromcomplex32complex64use_serderational32rational64autoconvert*bigrationalbigint-supportcomplex-supportrational-support

README

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Maintainers

Dependencies
10
direct dependencies
Dependents
1.2K
crates depend on uom

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