Carat to Grain Converter

1 ct = 3.0865 gr

01

FORMULA

1 ct = 3.0865 gr
02

CONVERSION TABLE

Carat (ct) Grain (gr)
1 ct 3.0865 gr
5 ct 15.4324 gr
10 ct 30.8647 gr
25 ct 77.1618 gr
50 ct 154.3236 gr
100 ct 308.6472 gr
250 ct 771.6179 gr
500 ct 1,543.24 gr
1,000 ct 3,086.47 gr
Grain to Carat
03

COMMON VALUES

1 ct
= 3.0865 gr
2 ct
= 6.1729 gr
3 ct
= 9.2594 gr
5 ct
= 15.4324 gr
10 ct
= 30.8647 gr
15 ct
= 46.2971 gr
20 ct
= 61.7294 gr
25 ct
= 77.1618 gr
50 ct
= 154.3236 gr
75 ct
= 231.4854 gr
100 ct
= 308.6472 gr
150 ct
= 462.9708 gr
04

RELATED CONVERSIONS

Kilogram → Pound Pound → Kilogram Ounce → Gram Gram → Ounce Stone → Kilogram Kilogram → Stone Pound → Ounce Ounce → Pound Kilogram → Gram Gram → Kilogram

About Carat (ct)

The metric carat equals exactly 200 milligrams and is the universal standard for measuring gemstone weight. Adopted internationally in 1907, the carat originated from the carob seed, which ancient gem traders believed had remarkably uniform weight. A one-carat diamond is approximately 6.5 mm in diameter.

About Grain (gr)

At 64.79891 milligrams, the grain is the smallest traditional unit of weight and is shared across the avoirdupois, troy, and apothecaries' systems. Ammunition manufacturers specify bullet weights in grains (a typical 9mm round uses a 115-grain bullet), and pharmacists historically measured drug doses in grains.

How to Convert Carat to Grain

The conversion formula is: 1 ct = 3.0865 gr. To convert from Carat (ct) to Grain (gr), use the formula above or the interactive converter at the top of this page.

05

FAQ

How many Grain in 1 Carat?

1 Carat (ct) equals 3.0865 Grain (gr).

How to convert Carat to Grain?

Multiply the Carat value by 3.0865 to get the equivalent in Grain. Formula: 1 ct = 3.0865 gr

What is the formula for Carat to Grain conversion?

1 ct = 3.0865 gr

Glossary

Learn More