Fidamen

Convert Kilograms to Slugs - Weight Converter

This tool converts a mass value expressed in kilograms (SI base unit) to slugs (mass unit used in some imperial/US customary contexts). The relationship is a fixed mathematical ratio and the result is intended for unit-conversion purposes only.

The slug is defined such that 1 slug ≈ 14.593902937206 kilograms. Use this converter when you need consistent unit translation for calculations, documentation, or engineering notes that reference both SI and imperial units.

When using converted values for measurements, calculations, or regulatory compliance, account for measurement uncertainty and ensure equipment is calibrated to traceable standards where required.

Updated Nov 7, 2025QA PASS — golden 25 / edge 120Run golden-edge-2026-01-23

Governance

Record 61b60e022cad • Reviewed by Fidamen Standards Committee

Interactive converter unavailable for this calculator.

We could not resolve compatible units for this experience. Please verify the slug follows the pattern `from-unit-to-unit-converter`.

Methodology

This converter uses the internationally accepted fixed conversion factor between the two units as documented by recognized standards authorities. The conversion is algebraic and does not depend on context, force, or local gravity because both units here are quantities of mass.

For engineering, laboratory, or procurement use, we recommend that measured masses be reported with an uncertainty and that weighing instruments be calibrated to NIST-traceable or equivalent national standards as applicable to your jurisdiction.

Relevant standards and guidance include NIST publications on units and values, the ISO 80000 series on quantities and units, and general standards on unit representation and reporting. Follow applicable workplace and safety guidance (for example ergonomics and material-handling recommendations) when applying converted mass values in operations.

Key takeaways

This converter provides a direct algebraic translation from kilograms to slugs using the fixed factor 1 slug ≈ 14.593902937206 kg. Apply appropriate rounding and document measurement uncertainty when using results for technical or regulatory work.

Worked examples

1 kg → 1 ÷ 14.593902937206 ≈ 0.0685218 slug.

70 kg → 70 ÷ 14.593902937206 ≈ 4.79652 slug (rounded to 5 significant figures).

100 kg → 100 ÷ 14.593902937206 ≈ 6.85218 slug.

F.A.Q.

What is a slug?

A slug is a unit of mass used in some imperial/US customary systems. It is defined so that 1 slug is approximately 14.593902937206 kilograms.

Is this conversion affected by gravity?

No. Both kilogram and slug as used here are units of mass. Converting mass units is a fixed algebraic operation and does not require a local gravity value. Converting between mass and force (for example, slugs vs pound-force) would involve acceleration due to gravity.

How many significant digits should I report?

Report results with as many significant digits as justified by the measurement uncertainty of the input. The conversion factor itself is known to many digits, but measurement uncertainty is typically dominated by the instrument used to obtain the mass in kilograms.

Do I need to calibrate weighing equipment to use converted values in regulated work?

Yes. For regulated, safety-critical, or legally binding measurements, use weighing equipment calibrated to a national metrology institute or a certified calibration provider and document traceability to NIST or the appropriate national standard.

How accurate is the conversion factor?

The conversion factor is exact to the precision quoted for unit-conversion purposes as provided by authoritative references. Practical accuracy is limited by the input measurement precision and instrument calibration.

Sources & citations

Further resources

Versioning & Change Control

Audit record (versions, QA runs, reviewer sign-off, and evidence).

Record ID: 61b60e022cad

What changed (latest)

v1.0.0 • 2025-11-07 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Public QA status

PASS — golden 25 + edge 120

Last run: 2026-01-23 • Run: golden-edge-2026-01-23

Engine

v1.0.0

Data

Baseline (no external datasets)

Content

v1.0.0

UI

v1.0.0

Governance

Last updated: Nov 7, 2025

Reviewed by: Fidamen Standards Committee (Review board)

Credentials: Internal QA

Risk level: low

Reviewer profile (entity)

Fidamen Standards Committee

Review board

Internal QA

Entity ID: https://fidamen.com/reviewers/fidamen-standards-committee#person

Semantic versioning

  • MAJOR: Calculation outputs can change for the same inputs (formula, rounding policy, assumptions).
  • MINOR: New features or fields that do not change existing outputs for the same inputs.
  • PATCH: Bug fixes, copy edits, or accessibility changes that do not change intended outputs except for previously incorrect cases.

Review protocol

  • Verify formulas and unit definitions against primary standards or datasets.
  • Run golden-case regression suite and edge-case suite.
  • Record reviewer sign-off with credentials and scope.
  • Document assumptions, limitations, and jurisdiction applicability.

Assumptions & limitations

  • Uses exact unit definitions from the Fidamen conversion library.
  • Internal calculations use double precision; display rounding follows the unit's configured decimal places.
  • Not a substitute for calibrated instruments in regulated contexts.
  • Jurisdiction-specific rules may require official guidance.

Change log

v1.0.0 • 2025-11-07 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Areas: engine, content, ui • Reviewer: Fidamen Standards Committee • Entry ID: c6fb76cd0bd1