ChargeCliff
Lexus

Lexus RZ 450e (AWD)

64 kWh usable, peaks at 143 kW. Every figure below comes from the same engine as the calculator, run on this car's own charge curve. Charge curve calibrated against a named, published dyno or road-test benchmark.

Fast charging, 10% to 80%

31 min
on a 143 kW charger at 72°F
56 min
same session at 32°F
31 min
on a 150 kW charger
76%
unplug point
67 mi
added in 10 minutes
99 mi
added in 20 minutes
44.8 kWh
energy added

DC intake power against state of charge, 0 to 100%.

Run this session with your own inputs

Highway range

151 mi
full charge at a steady 70 mph, 72°F
105 mi
80% to 10% window, 70 mph
77 mi
same window, 75 mph at 20°F
425 Wh/mi
consumption at 70 mph

The 80% to 10% window is the range most drivers plan a road trip around: you rarely arrive at a charger empty, and you rarely wait for 100%. Cold weather costs range twice, through denser air and the cabin heater; the 20°F figure has both.

Calculate range at your speed and temperature

Where these numbers come from

Shares the 300e's pack and curve (same e-TNGA platform). Cold-gate calibrated against a 30F/150kW-stall benchmark of 50-60 min; highway range calibrated against a 75mph/45F/heat-on benchmark of ~115-125 full-charge, ~80-88 safe-window miles.

The charge session is integrated across 1% state-of-charge steps on the curve above, with the cold-weather intake limit applied below 68°F. Highway range applies aerodynamic drag scaling, a cold-air penalty and a temperature-dependent cabin heater to a 349 Wh/mi baseline. Formulas and their limits: how it works.

Pack age matters. These figures assume a new pack. The calculator takes a model year and odometer reading and derates both charging and range for an older one.