Phnom Penh to Siem Reap by EV: route, charging & range tips

The drive from Phnom Penh to Siem Reap is one of Cambodia's classic road trips — roughly 314 km along National Road 6. It's very doable in an EV with a little planning. Here's how to make it stress-free.

Know your real range

Your car's advertised range is a best-case number. On a highway, at speed, with air conditioning running in Cambodian heat, plan for meaningfully less. A good rule of thumb: assume you'll comfortably use 70–80% of the advertised range on a highway run. If your EV is rated around 400 km, plan the trip as if you have about 300 km of usable highway range.

Plan your charging stops

For most modern EVs, the trip is either a single-charge run or one easy stop:

• Leave with a full battery. Charge to 100% the night before — this is the one time full charging makes sense.
• Plan a midpoint top-up around Kampong Thom or Skun if your range is tight or you want a comfortable buffer. Grab a coffee while a DC charger does the work.
• Charge on arrival. More and more Siem Reap hotels and resorts offer guest charging, so you can top up overnight for the drive home or for getting around town.

Before you leave: a quick checklist

• Check the chargers on your route in the operator's app — confirm they're online and available.
• Make sure you can pay with KHQR or ABA PayWay at your planned stops.
• Keep the charging cable and your card in the car.
• Have a backup stop in mind, just in case.

Enjoy the drive

An EV makes this route quiet, smooth and cheap to run — and the network of charging stops keeps getting better. With one full charge to start and a relaxed midpoint top-up, Phnom Penh to Siem Reap by electric car is genuinely easy. If you run a hotel or resort in Siem Reap, offering reliable guest charging is fast becoming something travellers actively look for.