Miles of range per hour
Miles of range per hour expresses charging speed in practical terms: how much driving distance the battery gains each hour. It equals charging power (kW) × vehicle efficiency (miles per kWh) — typically 25–45 miles per hour on a home Level 2 charger.
An efficient sedan (4 mi/kWh) on an 11.5 kW charger gains ~46 miles per hour; a heavy truck (2 mi/kWh) on the same charger gains ~23.
This site computes the figure per charger-vehicle pair from EPA range and battery capacity, which is more honest than quoting a single number for a charger.