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Conversion Formula:
Convert Milligram to Slug (mg 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.
Milligram (mg) — a small SI unit of mass
It is defined as one thousandth of a gram, or one millionth of a kilogram, the SI base unit for mass. Used worldwide for measuring very small masses in medicine, nutrition, chemistry, laboratory work, supplements, and precise product labeling.
- Symbol: mg
- System: SI unit for mass; decimal submultiple of the kilogram
- Exact relations: 1 mg = 0.001 g = 0.000001 kg = 1000 µg
- Imperial equivalents (derived from 1 lb = 0.45359237 kg exactly): 1 mg ≈ 0.000035274 oz ≈ 0.00000220462 lb
- Typical examples: a medicine dose ~200 mg; a vitamin tablet ~500 mg; a small grain of salt less than 1 mg.
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.