Convert Carat to Stone
Unit definitions
Carat
$\frac{2}{10}$ of a gram is a carat. It is used to measure the mass of gemstones.
Stone
The stone is an imperial unit of mass equal to $14$ avoirdupois pounds or $6.350\,293\,18$ kilograms.
How to convert Carat to Stone
$$\text{Mass}_{\text{st}} = \text{Mass}_{\text{ct}} \cdot 0.00003149460888355394010328197162071815$$
Examples
Example 1
Convert $45.0\ \text{ct}$ to $\text{st}$.
$$\text{Mass}_{\text{st}} = 45.0 \cdot 0.00003149460888355394010328197162071815$$
$$\text{Mass}_{\text{st}} = 0.001417$$
$$\therefore \ 45.0\ \text{ct} = 0.001417 \ \text{st}$$
Example 2
Convert $60.0\ \text{ct}$ to $\text{st}$.
$$\text{Mass}_{\text{st}} = 60.0 \cdot 0.00003149460888355394010328197162071815$$
$$\text{Mass}_{\text{st}} = 0.00189$$
$$\therefore \ 60.0\ \text{ct} = 0.00189 \ \text{st}$$
Example 3
Convert $110.0\ \text{ct}$ to $\text{st}$.
$$\text{Mass}_{\text{st}} = 110.0 \cdot 0.00003149460888355394010328197162071815$$
$$\text{Mass}_{\text{st}} = 0.003464$$
$$\therefore \ 110.0\ \text{ct} = 0.003464 \ \text{st}$$
Example 4
Convert $150.0\ \text{ct}$ to $\text{st}$.
$$\text{Mass}_{\text{st}} = 150.0 \cdot 0.00003149460888355394010328197162071815$$
$$\text{Mass}_{\text{st}} = 0.004724$$
$$\therefore \ 150.0\ \text{ct} = 0.004724 \ \text{st}$$
Example 5
Convert $165.0\ \text{ct}$ to $\text{st}$.
$$\text{Mass}_{\text{st}} = 165.0 \cdot 0.00003149460888355394010328197162071815$$
$$\text{Mass}_{\text{st}} = 0.005197$$
$$\therefore \ 165.0\ \text{ct} = 0.005197 \ \text{st}$$