What This Calculator Does
The VinFast Charging Cost per Mile Calculator estimates how much electricity costs to drive your VinFast EV — such as the VF 8 or VF 9 — for each mile. By combining your local electricity rate (in dollars per kilowatt-hour) with your vehicle's energy consumption (kilowatt-hours per 100 miles), you get a clear per-mile cost and the estimated cost of any trip.
How to Use It
Enter your electricity rate in $/kWh — check your utility bill, or use the US average of roughly $0.15. Enter your VinFast's energy use per 100 miles; EPA-style figures for many EVs fall between 28 and 40 kWh/100 mi. Optionally enter a trip distance to see the total cost for that drive. The calculator returns the cost per mile, cost per 100 miles, and the trip cost.
The Formula Explained
The core equation is simple: $$\text{cost per mile} = \frac{\text{rate} \times \text{kWh per 100 miles}}{100}$$ The energy use figure tells you how many kilowatt-hours 100 miles consumes; multiplying by your rate gives the cost of 100 miles, and dividing by 100 converts it to a per-mile figure. Real-world results vary with weather, driving style, charging losses, and terrain.
Worked Example
Suppose electricity costs $0.15/kWh and your VinFast uses 33 kWh per 100 miles. \(\text{Cost per mile} = \frac{0.15 \times 33}{100} = \frac{4.95}{100} = \$0.0495\) per mile. Over a 100-mile trip that's about $4.95, and over 12,000 miles a year roughly $594.
FAQ
Does this include home charging losses? No — charging from the wall is typically 5–15% less efficient than the energy stored. To be conservative, increase your kWh/100 mi figure slightly.
What if I use public DC fast chargers? Enter the per-kWh price the charging network bills you; rates there are often higher than home electricity.
Is this VinFast-specific? The formula works for any EV, but the default efficiency reflects typical VinFast SUV consumption. Pricing assumes US dollars.
