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Convert Pound to Scruple (lb to s) 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.
Scruple (℈) — an apothecaries’ unit of mass equal to 20 grains
It is defined as exactly 20 grains, or one third of an apothecaries’ dram; since 1 grain = 64.79891 mg exactly, 1 scruple = 1.2959782 g exactly. Used historically in pharmacy, medicine, and apothecaries’ weight systems, but now mostly encountered in historical references.
- Symbol: ℈
- System: Apothecaries’ unit for mass
- Exact relations: 1 scruple = 20 gr = 1/3 apothecaries’ dram = 1.2959782 g
- Metric equivalents: 1 scruple = 1.2959782 g ≈ 0.00129598 kg
- Typical examples: historical medicine recipes may list doses in scruples; 3 scruples equals 1 apothecaries’ dram; 1 scruple is a little heavier than 1 gram.