1 slug is equal to approximately 14.5939 kilograms.
The slug is a unit of mass used in the imperial system, mainly in the United States, while kilograms are part of the metric system. Converting 1 slug to kilograms involves multiplying by the conversion factor of 14.5939 kg per slug.
Conversion Tool
Result in kg:
Conversion Formula
The formula to convert slugs to kilograms is:
kilograms = slugs × 14.5939
This works because one slug is defined as the mass that accelerates by 1 ft/s² when a force of one pound-force is applied to it. The conversion factor 14.5939 represents how many kilograms equals one slug.
Example calculation for 1 slug:
- Start with the value in slugs: 1 slug
- Multiply by the conversion factor: 1 × 14.5939 = 14.5939 kg
- The result is 14.5939 kilograms
Conversion Example
- Convert 5 slugs to kilograms:
- Multiply 5 by 14.5939: 5 × 14.5939 = 72.9695 kg
- So, 5 slugs equals 72.9695 kilograms
- Convert 2.5 slugs to kilograms:
- Multiply 2.5 by 14.5939: 2.5 × 14.5939 = 36.48475 kg
- Therefore, 2.5 slugs equal 36.48475 kilograms
- Convert 0.75 slugs to kilograms:
- Multiply 0.75 by 14.5939: 0.75 × 14.5939 = 10.9454 kg
- Hence, 0.75 slugs equals 10.9454 kilograms
- Convert -3 slugs to kilograms:
- Multiply -3 by 14.5939: -3 × 14.5939 = -43.7817 kg
- Negative values mean negative mass in this context
Conversion Chart
| Slug | Kilograms (kg) |
|---|---|
| -24.0 | -350.2536 |
| -20.0 | -291.8780 |
| -16.0 | -233.5024 |
| -12.0 | -175.1268 |
| -8.0 | -116.7512 |
| -4.0 | -58.3756 |
| 0.0 | 0.0000 |
| 4.0 | 58.3756 |
| 8.0 | 116.7512 |
| 12.0 | 175.1268 |
| 16.0 | 233.5024 |
| 20.0 | 291.8780 |
| 24.0 | 350.2536 |
| 26.0 | 379.8414 |
The table shows conversion from slug values to kilograms from negative to positive values. To use it, locate the slug value and read across to find the equivalent weight in kilograms. Negative slug values means negative mass which is theoretical.
Related Conversion Questions
- How many kilograms does 1 slug weigh exactly?
- What is the formula to convert 1 slug to kilograms?
- Is 1 slug heavier than 1 kilogram or not?
- What is the difference between 1 slug and 1 kg in mass?
- How to calculate kg from slug when value is 1?
- Can 1 slug be expressed in kilograms without decimals?
- What would 1 slug be in kilograms on Earth?
Conversion Definitions
Slug: The slug is a unit of mass in the imperial system, mainly used in the U.S., defined as the mass that accelerates by 1 ft/s² when a force of 1 pound-force is applied. It is larger than a kilogram and useful in engineering involving pounds and feet.
Kilogram (kg): The kilogram is the base unit of mass in the metric system, defined by the International System of Units (SI). It is equivalent to the mass of the International Prototype Kilogram and widely used worldwide for scientific, commercial, and everyday measurements.
Conversion FAQs
Why does the slug unit exist when the kilogram is more popular?
The slug exists because it fits with the imperial system mechanics, using pounds-force and feet rather than newtons and meters. Engineers in the U.S. prefer it when calculating forces and masses without converting units to metric, making calculations more direct for certain applications.
Can the conversion factor between slug and kg change over time?
No, the conversion factor is fixed by definition. One slug is always equal to 14.5939 kilograms because both units are based on physical constants and measurement standards that don’t change.
Is it correct to use negative slug values in real-world problems?
Negative mass values like negative slugs are not physically meaningful. They might appear in theoretical calculations or as input errors. Mass should be positive in practical scenarios.
How accurate is the conversion from slug to kilogram?
The conversion factor 14.5939 is precise to four decimal places, providing very accurate results for most practical purposes. Minor rounding errors might occur but are negligible.
What happens when converting very large slug values to kilograms?
Large slug values convert to large kilogram values proportionally. The conversion formula applies regardless of magnitude, but extremely large numbers might require scientific notation for clarity.