EV Charger Speed Calculator

How long will it actually take to charge your EV? Enter your setup and get a realistic charge time - accounting for your car's on-board charger limit.

Your EV

Quick select (or enter manually below)

Battery capacity (kWh)

On-board charger (OBC) limit (kW)

Most Australian EVs: 7 kW or 11 kW

Your charger

Charger output (kW)

Charge type

AC (home charging)

Charge range

Start charge level (%)

Target charge level (%)

Most EVs: daily charge to 80%, full charge to 100%

Results

Charge time

5 h 20 min

Effective charge speed

11 kW

limited by OBC

km of range per hour

69 km/hr

Energy to add 46.2 kWh

Charge time comparison - same battery

Charger type	Speed	Time

Calculator notes

AC charging speed is limited by your car's on-board charger (OBC), not the wall charger rating.
DC fast charging bypasses the OBC - but DC charge rates taper above 80% to protect the battery.
Real-world charge times are typically 5–10% longer than calculated due to charging losses and tapering.
Some EVs (IONIQ 5/6, EV6, some BYD) have 800V architecture - they can use 350 kW DC chargers to reach 10–80% in under 20 minutes.

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