At One Place

Carats to milligrams

1 carat in milligrams
1 ct = 200 mg
mg = ct × 200

To convert carats to milligrams, multiply by 200. The table below gives the values people look up most often, and the converter works for any number.

Carats to milligrams table

Common carat values converted to milligrams.
Carats Milligrams
1 ct 200
2 ct 400
3 ct 600
4 ct 800
5 ct 1,000
10 ct 2,000
15 ct 3,000
20 ct 4,000
25 ct 5,000
30 ct 6,000
40 ct 8,000
50 ct 10,000
75 ct 15,000
100 ct 20,000
250 ct 50,000
500 ct 100,000
1,000 ct 200,000

How the conversion works

The relationship is mg = ct × 200. Both units measure mass, so the conversion is a fixed factor that never changes.

Common questions

How many milligrams are in one carat?
One carat equals 200 milligrams. mg = ct × 200.
How do you convert carats to milligrams?
Use mg = ct × 200. So 10 ct is 2,000 mg.
How many carats are in one milligram?
One milligram equals 0.005 carats, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked