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Convert Long Ton to Carat (ton (Imp) to ct) 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.
Long ton (UK ton) — an imperial unit of mass equal to 2240 pounds
It is defined as exactly 2240 avoirdupois pounds; since 1 lb = 0.45359237 kg exactly, 1 long ton = 1016.0469088 kg exactly. Used mainly in the United Kingdom and some Commonwealth contexts for measuring large masses in shipping, industry, freight, and historical trade.
- Symbol: long ton, UK ton
- System: Imperial unit for mass
- Exact relations: 1 long ton = 2240 lb = 35,840 oz = 1016.0469088 kg
- Metric equivalents: 1 long ton ≈ 1016.05 kg ≈ 1.01605 t
- Typical examples: ship displacement may be measured in long tons; heavy freight can be listed in long tons; 1 long ton is slightly heavier than a metric ton.
Carat (ct) — a metric unit of mass for gemstones
It is defined as exactly 200 milligrams, or one fifth of a gram. Used worldwide for measuring diamonds, gemstones, pearls, and other jewels; it should not be confused with karat, which measures gold purity.
- Symbol: ct
- System: Non-SI metric unit for mass; used with SI
- Exact relations: 1 ct = 200 mg = 0.2 g = 0.0002 kg
- Imperial equivalents (derived from 1 lb = 0.45359237 kg exactly): 1 ct ≈ 0.00705479 oz ≈ 0.000440925 lb
- Typical examples: a small diamond ~0.25 ct; an engagement-ring diamond ~1 ct; large gemstones may be several ct.