How Gas Price Changes the EV Savings Gap
Evaluate how pump price fluctuations from $2.75 to $5.00 per gallon expand or compress the annual savings gap between gasoline vehicles and home EV charging.
Comparison Baseline & Controlled Variables
All scenarios keep distance and EV electricity rate constant while evaluating varying fuel prices against a standard 28 MPG internal combustion engine:
Estimation notice: Calculations model direct fuel and electricity costs. Maintenance differences (oil changes, brake wear), insurance variance, and purchase price amortization are not included.
Worked Example: National Baseline Gas Price ($3.60/Gallon)
Annual Gas Gallons = 12,000 miles / 28 MPG = 428.57 gallons
Gas Cost @ $3.60 = 428.57 gallons × $3.60/gal = $1,542.86 / year ($0.129/mile)
EV Cost @ $0.16 = (12,000 / 100) × 30 × $0.16 = $576.00 / year ($0.048/mile)
Annual Net Savings = $1,542.86 - $576.00 = $966.86 (~$967/year, 62.7% savings)
Gas Price Sensitivity Table (12,000 Miles/Year)
Observe how pump prices change annual gasoline expenses and widen the EV savings gap against fixed home charging costs ($576/year).
| Gas Price | Gas Annual Cost | Gas Cost Per Mile | Annual Net Savings | 5-Year Savings |
|---|---|---|---|---|
| $2.75 / gal | $1,179 | $0.098/mi | $603 (51.1%) | $3,013 |
| $3.25 / gal | $1,393 | $0.116/mi | $817 (58.6%) | $4,084 |
| $3.60 / gal(Baseline) | $1,543 | $0.129/mi | $967 (62.7%) | $4,834 |
| $4.25 / gal | $1,821 | $0.152/mi | $1,245 (68.4%) | $6,227 |
| $5.00 / gal | $2,143 | $0.179/mi | $1,567 (73.1%) | $7,834 |
Understanding Gas Price Sensitivity
Gasoline price volatility has a direct multiplying effect on internal combustion vehicle operating costs. When gas is at $2.75 per gallon, annual gas expense is $1,179, yielding an EV savings advantage of $603 per year (51.1%).
When gas prices climb to $5.00 per gallon, annual gas expense rises to $2,143, expanding EV savings to $1,567 per year (73.1% reduction) — more than $7,800 over 5 years. For an EV to lose its fuel cost advantage under these conditions, gasoline would need to fall below approximately $1.34 per gallon.
Frequently Asked Questions: Gas Prices & EV Comparison
How low would gas prices need to drop for a gas car to be cheaper?
With electricity at $0.16/kWh and an EV using 30 kWh/100 miles ($0.048/mile), gasoline would need to drop below $1.34 per gallon for a 28 MPG vehicle to match the EV fuel cost per mile.
How do gas price spikes affect 5-year savings?
At $3.60/gallon, 5-year fuel savings are $4,834. If gasoline averages $4.50/gallon over that period, cumulative 5-year fuel savings exceed $6,700, representing nearly $1,900 in additional savings.
Does a higher MPG gas car close the savings gap?
Yes. A 45 MPG hybrid burning $3.60 gas costs $960 per year ($0.080/mile), narrowing the annual fuel savings gap against the EV from $967 down to $384.
Compare With Your Local Gas Station Prices
Enter the exact price per gallon in your area into our calculator to view real-time savings projections.