Grains to Carats Converter
Convert grains (gr) to carats (ct)
Result
0.32399455 ct
Carats
1 gr = 0.32399455 ct
1 gr in other units
- 1Enter a valueType the number to convert
- 2Pick the unitsChoose what to convert from and to
- 3Read the resultSee it in every other unit too
How to convert grains to carats
One grain equals 0.3239945 carats, so multiply the number of grains by 0.3239945.
ct = gr × 0.3239945
1 gr = 0.3239945 ct · 1 ct = 3.086472 gr
Worked example
To convert 5 grains to carats: 5 gr × 0.3239945 = 1.619973 ct.
About grains (gr)
A grain is exactly 64.79891 mg, used for bullets, arrows and some medicines.
About carats (ct)
A carat is exactly 200 mg, used to weigh diamonds and gemstones. (Gold purity “karat” is a different thing.)
More conversions
Grains to other units
Frequently asked questions
How many carats are in one grain?
One grain equals 0.3239945 carats.
How many grains are in one carat?
One carat equals 3.086472 grains.
How do I convert grains to carats?
Use the formula ct = gr × 0.3239945. For example, 5 gr × 0.3239945 = 1.619973 ct.