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Convert Stone to Pound (st to lb) 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.
Stone (st) — an imperial unit of mass equal to 14 pounds
It is defined as exactly 14 avoirdupois pounds; since 1 lb = 0.45359237 kg exactly, 1 st = 6.35029318 kg exactly. Used mainly in the United Kingdom and Ireland for measuring human body weight.
- Symbol: st
- System: Imperial unit for mass
- Exact relations: 1 st = 14 lb = 224 oz = 6.35029318 kg
- Metric equivalents: 1 st ≈ 6.35029 kg ≈ 6350.29 g
- Typical examples: a person weighing 10 st is 140 lb; a small adult ~8 st; a larger adult ~15 st.
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.