Pennyweights (dwt)	Carats (ct)
1 dwt	7.7759 ct
2 dwt	15.5517 ct
5 dwt	38.8793 ct
10 dwt	77.7587 ct
25 dwt	194.3967 ct
50 dwt	388.7935 ct
100 dwt	777.5869 ct
250 dwt	1943.97 ct
500 dwt	3887.93 ct
1000 dwt	7775.87 ct

Convert Pennyweights to Carats

Convert pennyweights to carats (dwt to ct) with our instant calculator. 1 dwt = 7.775869 ct. Includes exact formula and reference tables.

How to Convert Pennyweights to Carats (dwt to ct)

1 Pennyweight (dwt) is equal to 7.775869 Carats (ct). Multiply the pennyweight value by 7.7758692

Quick Answer 1 dwt = 7.775869 ct

Formula ct = dwt × 7.7758692

Inverse Factor 1 ct = 0.128603 dwt

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 Pennyweights (dwt): Pennyweight (dwt) is a unit in the Weight & Mass measurement category. It is widely used in scrap gold & dental alloys (1.555 g). Relative to the weight & mass base unit, 1 dwt equals 0.001555 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 Pennyweights (ct to dwt) calculator (1 ct = 0.128603 dwt).

Step-by-Step Worked Examples (dwt to ct)

Convert 5 Pennyweights to Carats: Applying the formula (ct = dwt × 7.7758692): starting with 5 dwt, multiply the pennyweight value by 7.7758692 to get 38.8793 ct.
Convert 10 Pennyweights to Carats: Applying the formula (ct = dwt × 7.7758692): starting with 10 dwt, multiply the pennyweight value by 7.7758692 to get 77.7587 ct.
Convert 50 Pennyweights to Carats: Applying the formula (ct = dwt × 7.7758692): starting with 50 dwt, multiply the pennyweight value by 7.7758692 to get 388.7935 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 pennyweights to carats.

How many carats are in 1 pennyweight?

There are 7.775869 carats (ct) in 1 pennyweight (dwt). Conversely, 1 carat equals 0.128603 pennyweights.

How do you convert pennyweights to carats?

To convert pennyweights (dwt) to carats (ct), use the formula: ct = dwt × 7.7758692. Multiply the pennyweight value by 7.7758692. For example, 10 dwt equals 77.7587 ct.

How do I convert back from carats to pennyweights?

To convert in the reverse direction from carats (ct) to pennyweights (dwt), use the inverse formula: dwt = ct × 0.1286029863. Multiply the carat value by 0.1286029863 (1 ct = 0.128603 dwt).

What is the difference between pennyweight (dwt) and carat (ct)?

Both pennyweight and carat measure weight & mass. Pennyweight (dwt) is a unit in the Weight & Mass measurement category. It is widely used in scrap gold & dental alloys (1.555 g). Relative to the weight & mass base unit, 1 dwt equals 0.001555 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.