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Conversion Formula:
Convert Kilogram to Slug (kg to slug) instantly with accurate, readable results.
Use our Mass Unit Converter to convert between grams, kilograms, pounds, ounces, and other weight units instantly. Designed for cooking, science, fitness, and engineering needs, this unit conversion tool offers accurate results between metric and imperial systems. Whether you’re tracking body weight, measuring ingredients, or handling heavy machinery, our mass unit conversion calculator has you covered.
Kilogram (kg) — the SI base unit of mass
It is defined by fixing the Planck constant at exactly 6.62607015×10⁻³⁴ J·s; together with the definitions of the meter and second, this sets the kilogram. Used worldwide for measuring mass in science, engineering, commerce, medicine, food, shipping, and everyday life.
- Symbol: kg
- System: SI base unit for mass
- Exact relations: 1 kg = 1000 g = 1,000,000 mg
- Imperial equivalents (derived from 1 lb = 0.45359237 kg exactly): 1 kg ≈ 2.20462 lb ≈ 35.27396 oz
- Typical examples: 1 liter of water ~1 kg; a laptop ~1.5 kg; an adult person ~70 kg.
Slug (slug) — a foot-pound-second unit of mass
It is defined as the mass that accelerates by 1 ft/s² when acted on by a force of 1 pound-force; equivalently, 1 slug = 1 lbf·s²/ft. Used mainly in engineering and physics in foot-pound-second systems, especially for mechanics, dynamics, ballistics, and aerospace calculations.
- Symbol: slug
- System: Foot-pound-second unit for mass
- Exact relations: 1 slug = 1 lbf·s²/ft ≈ 32.17404856 lb
- Metric equivalents: 1 slug ≈ 14.59390294 kg ≈ 14,593.90294 g
- Typical examples: an object with a mass of 1 slug weighs about 32.174 lb under standard gravity; engineering dynamics problems may use slugs for mass; vehicle or aircraft mass can be expressed in slugs for force calculations.