Troy Ounces (oz t)	Carats (ct)
1 oz t	155.5174 ct
2 oz t	311.0348 ct
5 oz t	777.5869 ct
10 oz t	1555.17 ct
25 oz t	3887.93 ct
50 oz t	7775.87 ct
100 oz t	15551.74 ct
250 oz t	38879.35 ct
500 oz t	77758.69 ct
1000 oz t	155517.38 ct

Convert Troy Ounces to Carats

Convert troy ounces to carats (oz t to ct) with our instant calculator. 1 oz t = 155.517384 ct. Includes exact formula and reference tables.

How to Convert Troy Ounces to Carats (oz t to ct)

1 Troy Ounce (oz t) is equal to 155.517384 Carats (ct). Multiply the troy ounce value by 155.517384

Quick Answer 1 oz t = 155.517384 ct

Formula ct = oz t × 155.517384

Inverse Factor 1 ct = 0.00643 oz t

Unit Definitions & Metrology Context

The standard SI base unit of mass is the kilogram (kg), defined in terms of the Planck constant (h = 6.62607015 × 10⁻³⁴ J⋅s).

About Troy Ounces (oz t): Troy Ounce (oz t) is a unit in the Weight & Mass measurement category. It is widely used in gold, silver & bullion (31.1 g). Relative to the weight & mass base unit, 1 oz t equals 0.031103 Kilograms (kg).

About Carats (ct): Carat (ct) is a unit in the Weight & Mass measurement category. It is widely used in diamonds & gemstones. Relative to the weight & mass base unit, 1 ct equals 0.0002 Kilograms (kg).

Need to convert in the opposite direction? Visit our Convert Carats to Troy Ounces (ct to oz t) calculator (1 ct = 0.00643 oz t).

Step-by-Step Worked Examples (oz t to ct)

Convert 5 Troy Ounces to Carats: Applying the formula (ct = oz t × 155.517384): starting with 5 oz t, multiply the troy ounce value by 155.517384 to get 777.5869 ct.
Convert 10 Troy Ounces to Carats: Applying the formula (ct = oz t × 155.517384): starting with 10 oz t, multiply the troy ounce value by 155.517384 to get 1555.1738 ct.
Convert 50 Troy Ounces to Carats: Applying the formula (ct = oz t × 155.517384): starting with 50 oz t, multiply the troy ounce value by 155.517384 to get 7775.8692 ct.

Popular Weight & Mass Conversions

Pound ⇄ Kilogram

1 avoirdupois pound is legally defined as exactly 0.45359237 kilograms.

Ounce ⇄ Gram

1 ounce is approximately 28.3495 grams (1/16 of a pound).

Stone ⇄ Pound

1 British stone is exactly equal to 14 pounds (approx. 6.35029 kg).

Kilogram ⇄ Gram

1 kilogram equals exactly 1,000 grams.

Frequently Asked Questions

Verified answers and formulas for converting troy ounces to carats.

How many carats are in 1 troy ounce?

There are 155.517384 carats (ct) in 1 troy ounce (oz t). Conversely, 1 carat equals 0.00643 troy ounces.

How do you convert troy ounces to carats?

To convert troy ounces (oz t) to carats (ct), use the formula: ct = oz t × 155.517384. Multiply the troy ounce value by 155.517384. For example, 10 oz t equals 1555.1738 ct.

How do I convert back from carats to troy ounces?

To convert in the reverse direction from carats (ct) to troy ounces (oz t), use the inverse formula: oz t = ct × 0.006430149314. Multiply the carat value by 0.006430149314 (1 ct = 0.00643 oz t).

What is the difference between troy ounce (oz t) and carat (ct)?

Both troy ounce and carat measure weight & mass. Troy Ounce (oz t) is a unit in the Weight & Mass measurement category. It is widely used in gold, silver & bullion (31.1 g). Relative to the weight & mass base unit, 1 oz t equals 0.031103 Kilograms (kg). Carat (ct) is a unit in the Weight & Mass measurement category. It is widely used in diamonds & gemstones. Relative to the weight & mass base unit, 1 ct equals 0.0002 Kilograms (kg).

How many pounds are in 1 kilogram?

1 kilogram equals approximately 2.20462 pounds. A quick mental trick is to multiply kilograms by 2.2.