Charging cost comparison calculator

Home rate against public rapid charging.

Built and reviewed by Dovanic, Founder and editor, FreeByteLast reviewed: 2026-08-18

kWh per year

Home rate per kWh

Public rate per kWh

Share charged publicly

30%

Yearly charging cost

$938

All at home

$560

With these inputs, yearly charging cost comes to $938. All at home works out to $560. The result assumes home rate per kwh stays at 0.16%.

What moves the number · Yearly charging cost

Input	−10%	Now	+10%
kWh per year	$844	$938	$1,032
Home rate per kWh	$899	$938	$977
Public rate per kWh	$883	$938	$993
Share charged publicly	$900	$938	$976

Whatmakesequal

Save this set of inputs, change something, then save again to compare the outcomes side by side.

Home rate against public rapid charging.

With the defaults above, yearly charging cost works out at $938.