Convert UK fluid ounce to US oil barrel
Unit definitions
UK fluid ounce
$\frac{1}{160}$ of a UK gallon is a UK fluid ounce.
US oil barrel
The US oil barrel is defined as exactly $42$ US liquid gallons. It is used for measuring crude oil and other petroleum products.
How to convert UK fluid ounce to US oil barrel
$$\text{Volume}_{\text{bbl (oil)}} = \text{Volume}_{\text{oz (uk)}} \cdot 0.0001787127865334605550110728027720532$$
Examples
Example 1
Convert $20.0\ \text{oz (uk)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 20.0 \cdot 0.0001787127865334605550110728027720532$$
$$\text{Volume}_{\text{bbl (oil)}} = 0.003574$$
$$\therefore \ 20.0\ \text{oz (uk)} = 0.003574 \ \text{bbl (oil)}$$
Example 2
Convert $90.0\ \text{oz (uk)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 90.0 \cdot 0.0001787127865334605550110728027720532$$
$$\text{Volume}_{\text{bbl (oil)}} = 0.016084$$
$$\therefore \ 90.0\ \text{oz (uk)} = 0.016084 \ \text{bbl (oil)}$$
Example 3
Convert $100.0\ \text{oz (uk)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 100.0 \cdot 0.0001787127865334605550110728027720532$$
$$\text{Volume}_{\text{bbl (oil)}} = 0.017871$$
$$\therefore \ 100.0\ \text{oz (uk)} = 0.017871 \ \text{bbl (oil)}$$
Example 4
Convert $145.0\ \text{oz (uk)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 145.0 \cdot 0.0001787127865334605550110728027720532$$
$$\text{Volume}_{\text{bbl (oil)}} = 0.025913$$
$$\therefore \ 145.0\ \text{oz (uk)} = 0.025913 \ \text{bbl (oil)}$$
Example 5
Convert $190.0\ \text{oz (uk)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 190.0 \cdot 0.0001787127865334605550110728027720532$$
$$\text{Volume}_{\text{bbl (oil)}} = 0.033955$$
$$\therefore \ 190.0\ \text{oz (uk)} = 0.033955 \ \text{bbl (oil)}$$