Kia EV3 vs Volvo EX30: home charging cost

At the current price cap, the Kia EV3 is the cheaper of the two to run at 6.2p per mile vs 6.6p for the Volvo EX30 — a difference of about £41.21 over 10,000 miles of home charging.

Prices based on the Ofgem price cap of 26.11 p/kWh, effective 1 July 2026.Source: Ofgem

	Kia EV3Long Range 81.4 kWh	Volvo EX30Single Motor Extended Range
Full charge cost	£23.14	£18.99
Cost per mile	6.2p	6.6p
20-80% on a 7 kW wallbox	6 hr 41 min	5 hr 29 min
Usable battery	78 kWh	64 kWh
WLTP range	375 miles	291 miles
Efficiency	4.8 mi/kWh	4.5 mi/kWh
Max AC charging	11 kW	11 kW

At a glance

Full charge cost (lower is better)

Kia EV3£23.14

Volvo EX30£18.99

Running cost per mile (lower is better)

Kia EV36.2p

Volvo EX306.6p

20-80% time on a 7 kW wallbox (lower is better)

Kia EV36 hr 41 min

Volvo EX305 hr 29 min

The bigger battery costs more to fill but is not necessarily more expensive to run — cost per mile depends on efficiency, not battery size. Costs include ~12% AC charging losses.