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Convert Pennyweight to Kilogram (dwt to kg) 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.
Pennyweight (dwt) — a troy unit of mass for precious metals
It is defined as exactly 24 grains, or one twentieth of a troy ounce. Used mainly for measuring precious metals, jewelry, gemstones, dental alloys, and historical coin or bullion weights.
- Symbol: dwt
- System: Troy unit for mass
- Exact relations: 1 dwt = 24 gr = 1/20 oz t = 1.55517384 g
- Metric equivalents: 1 dwt = 1.55517384 g ≈ 0.00155517 kg
- Typical examples: small gold jewelry may weigh a few dwt; precious-metal scrap is often priced per dwt; 20 dwt equals 1 troy ounce.
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.