How many kilograms is one slug?

One slug equals approximately 14.594 kilograms. This derives from 1 slug = 1 lb-force / (1 ft/s2) = 32.174 lb-mass = 14.594 kg.

How do I convert slugs to kilograms?

Multiply slugs by 14.594. For example, 5 slugs equals about 72.97 kilograms. For quick estimation, multiply by 14.6.

Why do engineers need this conversion?

American engineering sometimes uses slugs in F = ma calculations, while international engineering uses kilograms. Any cross-border engineering collaboration requires translating between these mass units.

Slugs to Kilograms (slug to kg) Converter

1 slug = 14.5939 kg

1 Slug equals 14.5939 Kilograms (1 slug = 14.5939 kg). Convert Slugs to Kilograms with formula, table, and examples.

One slug equals approximately 14.594 kilograms. This is the most important slug conversion, as the kilogram is the SI base unit of mass and the international standard for engineering calculations. Remembering 'one slug is about 14.6 kilos' is the essential shortcut for anyone translating between American and international engineering systems.

How to Convert Slugs to Kilograms

kg = slug × 14.593903

Multiply the value in Slugs by 14.593903

Take your value in Slugs
Multiply by 14.593903
Read the result in Kilograms

Common Slugs to Kilograms Conversions

Slugs (slug)	Kilograms (kg)	Status
0.1 slug	1.4594 kg
0.25 slug	3.6485 kg
0.5 slug	7.297 kg
1 slug	14.5939 kg
2 slug	29.1878 kg
3 slug	43.7817 kg
4 slug	58.3756 kg
5 slug	72.9695 kg
6 slug	87.5634 kg
7 slug	102.1573 kg
10 slug	145.939 kg
20 slug	291.8781 kg
50 slug	729.6952 kg
100 slug	1,459.3903 kg
200 slug	2,918.7806 kg
500 slug	7,296.9515 kg

Good to Know About Slugs to Kilograms Conversion

The slug-to-kilogram conversion is the daily reality of international engineering collaboration. Every time an American aerospace company shares specifications with a European partner, or an American bridge design is reviewed by international consultants, the factor 14.594 translates between two engineering traditions. The kilogram is slowly winning this particular conversion battle, as even American engineering schools increasingly teach SI units first.

Slugs to Kilograms: What You Need to Know

Every engineering project involving American specifications must convert slugs to kilograms for international compatibility. Aerospace, automotive, and structural engineering firms routinely perform this conversion when collaborating across borders. The 14.594 factor appears in university engineering physics courses worldwide.

What is a Slug? slug

A slug is a unit of mass in the imperial system used in physics and engineering. It equals approximately 14.593903 kilograms, derived from the pound-force, standard gravity, and the foot.

Imperial physics engineering aerospace

Learn more about Slug →

What is a Kilogram? kg

The base unit of mass in the International System of Units (SI). Equal to 1000 grams. Used worldwide for everyday weighing and commerce.

Metric everyday weighing commerce medicine

Learn more about Kilogram →

Going the other way? Use our Kilograms to Slugs converter.

Slugs to Kilograms FAQ

One slug equals approximately 14.594 kilograms. This derives from 1 slug = 1 lb-force / (1 ft/s²) = 32.174 lb-mass = 14.594 kg.
Multiply slugs by 14.594. For example, 5 slugs equals about 72.97 kilograms. For quick estimation, multiply by 14.6.
American engineering sometimes uses slugs in F = ma calculations, while international engineering uses kilograms. Any cross-border engineering collaboration requires translating between these mass units.

Non-Frequently Asked Questions About Slugs to Kilograms

Questions nobody should ask - but someone did.

You have a mass of about 5.48 slugs. This means one pound-force would accelerate you at about 0.182 ft/s², which is relevant if you are ever modeled as a point mass in an engineering simulation, and completely irrelevant in every other context of your life.
The slug is more a symptom than a cause. American engineers learn the slug because their textbooks use imperial units, which exist because American industry was built on the imperial system. The slug is the mathematical patch that makes F = ma work in pounds and feet. In SI, no such patch is needed because the kilogram and newton were designed to work together from the start.
Engineering professors would need new lecture notes. A few specialized American industries would need to update their calculation templates. But since most international engineering already uses kilograms, the slug's disappearance would primarily affect nostalgia among engineers trained in the 1960s through 1990s. The kilogram can handle everything the slug does, and it has a less unfortunate name.