Why the distinction matters
Imperial pint and US liquid pint belong to measurement conventions that may look familiar but are not always equivalent across countries. Mendeleev.com therefore keeps the system name next to the abbreviation and calculates from defined conversion factors rather than rounded kitchen rules.
Example
1 imp pt = 1.2009499255 US pt · 10 imp pt = 12.009499255 US pt.
1.2009499255 US pt