How many short tons is 1 million carats?

1,000,000 × 0.0000002205 = 0.2205 ST. About 441 lbs.

A diamond tool weighs 0.5 ST — how many carats is that?

0.5 ÷ 0.0000002205 = 2,267,961 carats. About 2.3 million carats.

Is 1 carat exactly 0.0000002205 short tons?

1 ct = 0.2 g ÷ 907,184.74 g/ST = 2.205 × 10⁻⁷ ST. We typically round to 0.0000002205.

When would I convert carats to short tons?

Only for very large diamond quantities in industrial or mining contexts where short ton documentation is required. For metric alternatives, try [carats to kg](/weight/carats-to-kg/).

Carats (ct) to Short Tons (US ton) Converter

Enter a value to instantly convert between weight units.

From

Precision4 dp

1 Carat = 2.2046e-7 Short Ton (US)

Key Formulas

Kilogram → Pound

lb = kg × 2.20462

Pound → Kilogram

kg = lb × 0.453592

Gram → Ounce

oz = g × 0.035274

Ounce → Gram

g = oz × 28.3495

Formula

ton = ct × 0.0000002205

One carat is 0.2 grams, and since a US short ton is 907,185 grams, one carat is about 2.2 hundred-millionths of a short ton. This conversion is essentially never needed in practice since carats are tiny (0.2 grams) and short tons are huge (907 kg).

Source: NIST SP 811, Table B.8

Frequently Asked Questions

Real-World Examples

A diamond mining company shipping 4,535,924 carats of industrial diamond declares exactly 1 short ton for customs.

4535924 ct = 1 ton

A jewelry manufacturer using 1 million carats of small accent stones receives 0.2205 short tons of material.

1000000 ct = 0.2205 ton

A diamond tool producer ordering 500,000 carats of powder needs to know it's 0.1102 ST for shipping.

500000 ct = 0.1102 ton

A diamond wire saw manufacturer ordering 10 million carats of diamond reports 2.205 short tons for the contract.

10000000 ct = 2.205 ton

kg to lbs lbs to kg grams to ounces ounces to grams kg to grams stone to kg

Carats (ct) to Short Tons (US ton) Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

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