Select a category
Conversion Formula:
Convert Pound to Slug (lb 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.
Pound (lb) — an imperial and US customary unit of mass
It is defined as exactly 0.45359237 kilograms; this is the international avoirdupois pound used for ordinary mass and weight measurements. Used mainly in the United States and some other countries for measuring body weight, food, packages, shipping, sports equipment, and everyday masses.
- Symbol: lb
- System: Imperial and US customary unit for mass
- Exact relations: 1 lb = 16 oz = 0.45359237 kg = 453.59237 g
- Metric equivalents: 1 lb ≈ 0.453592 kg ≈ 453.592 g
- Typical examples: a loaf of bread ~1 lb; a laptop ~3 lb; an adult person ~150 lb.
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.