Convert Metric pint to US beer barrel
Unit definitions
Metric pint
The metric pint equals exactly $500$ milliliters.
US beer barrel
The US beer barrel is defined as exactly $31$ US liquid gallons.
How to convert Metric pint to US beer barrel
$$\text{Volume}_{\text{bbl (beer)}} = \text{Volume}_{\text{pt (metric)}} \cdot 0.004260839554163684119030643896921976$$
Examples
Example 1
Convert $25.0\ \text{pt (metric)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = 25.0 \cdot 0.004260839554163684119030643896921976$$
$$\text{Volume}_{\text{bbl (beer)}} = 0.106521$$
$$\therefore \ 25.0\ \text{pt (metric)} = 0.106521 \ \text{bbl (beer)}$$
Example 2
Convert $75.0\ \text{pt (metric)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = 75.0 \cdot 0.004260839554163684119030643896921976$$
$$\text{Volume}_{\text{bbl (beer)}} = 0.319563$$
$$\therefore \ 75.0\ \text{pt (metric)} = 0.319563 \ \text{bbl (beer)}$$
Example 3
Convert $115.0\ \text{pt (metric)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = 115.0 \cdot 0.004260839554163684119030643896921976$$
$$\text{Volume}_{\text{bbl (beer)}} = 0.489997$$
$$\therefore \ 115.0\ \text{pt (metric)} = 0.489997 \ \text{bbl (beer)}$$
Example 4
Convert $145.0\ \text{pt (metric)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = 145.0 \cdot 0.004260839554163684119030643896921976$$
$$\text{Volume}_{\text{bbl (beer)}} = 0.617822$$
$$\therefore \ 145.0\ \text{pt (metric)} = 0.617822 \ \text{bbl (beer)}$$
Example 5
Convert $180.0\ \text{pt (metric)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = 180.0 \cdot 0.004260839554163684119030643896921976$$
$$\text{Volume}_{\text{bbl (beer)}} = 0.766951$$
$$\therefore \ 180.0\ \text{pt (metric)} = 0.766951 \ \text{bbl (beer)}$$