Carat to Milligram Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert carats [ct] to milligrams [mg] or milligrams [mg] to carats [ct]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert carats to milligrams
There are two simple ways to convert carats [ct] to milligrams [mg]. In the first calculation method, the value in carats [ct] is divided by 0.005. The second method multiplies the value in carats [ct] by 200.
- Milligrams [mg] = carats [ct] ÷ 0.005
- Milligrams [mg] = carats [ct] * 200
Convert milligrams to carats
Converting milligrams [mg] to carats [ct] is easy and can be done in two ways. The first method involves multiplication, whereby the value in milligrams [mg] is multiplied by 0.005. The second variant is a division. Here, the value in milligrams [mg] is divided by 200.
- Carats [ct] = milligrams [mg] * 0.005
- Carats [ct] = milligrams [mg] ÷ 200
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