Convert Kilograms (kg) to Slugs

1 kilogram equals 0.0685218 slugs.

Formula: slug = kg × 0.0685218

Kilogram to Slug Converter

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How to Convert Kilogram to Slug

1 kilogram = 0.0685218 slugs

Slug = Kilogram × 0.0685218

Example: 1 kg × 0.0685218 = 0.0685218 slug

Reverse Conversion

To convert slugs back to kilograms:

  • Remember, 1 slug equals 14.5939 kilograms.
  • To convert 0.0685218 slug to kg, multiply 0.0685218 x 14.5939, resulting in 1 kg.

Common Kilogram to Slug Conversions

Kilogram to Slug (Part 1)
Kilogram Slug Actions
1 kilogram 0.0685218 slugs
5 kilograms 0.342609 slugs
10 kilograms 0.685218 slugs
25 kilograms 1.71304 slugs
Kilogram to Slug (Part 2)
Kilogram Slug Actions
50 kilograms 3.42609 slugs
100 kilograms 6.85218 slugs
500 kilograms 34.2609 slugs
1000 kilograms 68.5218 slugs

Kilograms to slugs Conversion Table

Reference table with common kilograms to slugs conversions. All values calculated with high precision.

Kilograms to Slugs Table
0.01 to 50

Kilograms Slugs Actions
0.01 kg 0.000685218 slug
0.025 kg 0.00171304 slug
0.05 kg 0.00342609 slug
0.1 kg 0.00685218 slug
14 kg 0.0171304 slug
12 kg 0.0342609 slug
1 kg 0.0685218 slug
2 12 kg 0.171304 slug
5 kg 0.342609 slug
10 kg 0.685218 slug
25 kg 1.71304 slug
50 kg 3.42609 slug

Kilograms to Slugs Table
100 to 10000000

Kilograms Slugs Actions
100 kg 6.85218 slug
250 kg 17.1304 slug
500 kg 34.2609 slug
1000 kg 68.5218 slug
2500 kg 171.304 slug
5000 kg 342.609 slug
10000 kg 685.218 slug
25000 kg 1713.04 slug
50000 kg 3426.09 slug
100000 kg 6852.18 slug
250000 kg 17130.4 slug
500000 kg 34260.9 slug
1000000 kg 68521.8 slug
2500000 kg 171304 slug
5000000 kg 342609 slug
10000000 kg 685218 slug

Slugs to Kilograms Table
0.0001 to 12

Slugs Kilograms Actions
0.0001 slug 0.00145939 kg
0.00025 slug 0.00364848 kg
0.0005 slug 0.00729695 kg
0.001 slug 0.0145939 kg
0.0025 slug 0.0364848 kg
0.005 slug 0.0729695 kg
0.01 slug 0.145939 kg
0.025 slug 0.364848 kg
0.05 slug 0.729695 kg
0.1 slug 1.45939 kg
14 slug 3.64848 kg
12 slug 7.29695 kg

Slugs to Kilograms Table
1 to 100000

Slugs Kilograms Actions
1 slug 14.5939 kg
2 12 slug 36.4848 kg
5 slug 72.9695 kg
10 slug 145.939 kg
25 slug 364.848 kg
50 slug 729.695 kg
100 slug 1459.39 kg
250 slug 3648.48 kg
500 slug 7296.95 kg
1000 slug 14593.9 kg
2500 slug 36484.8 kg
5000 slug 72969.5 kg
10000 slug 145939 kg
25000 slug 364848 kg
50000 slug 729695 kg
100000 slug 1459390 kg

Definition of Kilogram

Definition
The kilogram (kg) is the SI base unit of mass. Since 2019, it is defined by fixing the numerical value of the Planck constant, ensuring stability independent of physical artifacts.

The kilogram is universally used in science, engineering, medicine, commerce, and daily life, forming the reference point for all metric and many non-metric mass units.
Exact factor
Base unit: 1 kg = 1000 g = 2.2046226218 lb
Examples
• 70 kg ≈ 154.32 lb
• 80 kg ≈ 12 st 8.37 lb

Definition of Slug

Definition
The slug is a unit of mass in the imperial gravitational system, primarily used in physics and engineering calculations involving force and acceleration.

It is defined so that one slug accelerated at 1 ft/s² requires one pound-force.
Exact factor
1 slug = 14.593903 kg
Examples
• 1 slug ≈ 32.17 lb
• 2 slug ≈ 29.19 kg

About the Kilogram

Facts & Uses

  • SI base unit of mass — the only base unit redefined in 2019 (26th CGPM) by fixing the Planck constant at exactly 6.62607015 × 10⁻³⁴ J·s, replacing the 130-year-old physical artifact.
  • Universal reference for science, medicine (drug dosage, body weight), commerce (food, freight), and engineering (mechanical loads, structural design).
  • Used in nutrition labels, fitness (BMI, weight loss), and international shipping where customs declarations require metric mass.
  • Subdivisions: gram (cooking, lab), milligram (pharmacy, dosing), microgram (toxicology); multiples: tonne (industry, freight).

Curiosities

  • Until 20 May 2019, the kilogram was defined as the mass of the International Prototype Kilogram (IPK), a platinum-iridium cylinder kept in a vault near Paris since 1889.
  • Comparisons with sister copies showed the IPK was drifting by ~50 µg per century — enough to motivate the redefinition via a fundamental constant.
  • The kilogram is the only SI base unit whose name still contains a metric prefix ("kilo"), a historical quirk inherited from the 1795 French metric system.
  • Approximate equivalents: 1 kg ≈ 2.2046 lb ≈ 35.274 oz ≈ 0.157 stone.

Sources

Frequently Asked Questions

How many slugs are in one kilogram?

One kilogram equals 0.0685218 slugs. To convert, multiply the kilogram value by 0.0685218. For the reverse, divide the slug value by 0.0685218 (or multiply by 14.5939).

What is 0.49 kilograms in slugs?

0.49 kilograms = 0.033576 slugs. This is one of the most commonly searched conversions for this pair.

How precise is the kilogram-to-slug conversion?

The factor 0.0685218 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Slug to Kilogram

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Conversion factors verified against NIST (National Institute of Standards and Technology), BIPM (International Bureau of Weights and Measures) 1 lb = 0.45359237 kg by international agreement (1959). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.