Calculate miles per gallon equivalent (MPGe) for hybrid and plug-in hybrid vehicles. Compare energy efficiency with EVs and gas cars.
Miles Per Gallon equivalent (MPGe) is the EPA's standard for comparing the energy efficiency of electric and hybrid vehicles to traditional gas cars. One gallon of gasoline contains 33.7 kWh of energy, so an EV that travels 100 miles on 33.7 kWh achieves 100 MPGe.
Most EVs rate 90–140 MPGe. Plug-in hybrids rate 50–100 MPGe in combined mode. Understanding MPGe helps compare vehicles across fuel types on an apples-to-apples energy basis.
This calculator computes MPGe from your vehicle's kWh consumption or from electric range and battery size. It also converts between mi/kWh and MPGe for quick comparisons.
Whether you drive a compact sedan, a full-size SUV, or a pickup truck, accurate hybrid mpge figures help you plan smarter and avoid costly surprises at the pump or dealership. Use this tool regularly to track changes over time and adjust your transportation budget accordingly.
From daily commuters to long-distance road-trippers, knowing your precise hybrid mpge numbers empowers you to negotiate better deals, compare vehicles objectively, and optimize every dollar spent on transportation. Adjust the inputs above to match your unique driving profile and see how small changes create meaningful savings over months and years.
From daily commuters to long-distance road-trippers, knowing your precise hybrid mpge numbers empowers you to negotiate better deals, compare vehicles objectively, and optimize every dollar spent on transportation. Adjust the inputs above to match your unique driving profile and see how small changes create meaningful savings over months and years.
MPGe allows you to compare energy efficiency across gas, hybrid, PHEV, and full electric vehicles using one standardized metric. This helps when shopping for a vehicle or evaluating real-world efficiency. Results update instantly as you adjust inputs, making it easy to explore different scenarios and find the best option for your driving needs and budget.
MPGe = 33.705 × Efficiency (mi/kWh) Alternatively: MPGe = 33.705 × (EPA Range ÷ Battery kWh) 1 gallon of gas = 33.705 kWh of energy
Result: 118 MPGe
At 3.5 mi/kWh: MPGe = 33.705 × 3.5 = 118 MPGe. This means the EV travels 118 miles on the energy equivalent of one gallon of gas. Compare to a 28 MPG gas car — the EV is 4.2× more energy-efficient.
The EPA created MPGe to give consumers a single efficiency metric across fuel types. One gallon of gas = 33.705 kWh = 115,000 BTU. An EV traveling 100 miles on 33.705 kWh scores exactly 100 MPGe. Most EVs beat this easily.
Compact EV: 120–141 MPGe (Ioniq 6: 140, Model 3: 132). Mid-size EV: 100–125 MPGe (Model Y: 122, Mach-E: 100). EV SUV: 85–110 MPGe (R1S: 104, EQS SUV: 85). EV Truck: 65–90 MPGe (F-150 Lightning: 78, Cybertruck: 69). PHEV: 50–90 MPGe combined.
EV at 120 MPGe ($0.14/kWh): $3.93/100mi. Gas car at 30 MPG ($3.50/gal): $11.67/100mi. PHEV at 80 MPGe (mixed): $5.50–$7.00/100mi. The EV costs about 66% less per mile despite electricity not being free.
While MPGe is useful for energy comparison, total cost of ownership also includes electricity/gas prices, maintenance, depreciation, and insurance. EVs win on energy and maintenance costs but may have higher insurance and depreciation. Use MPGe as one factor in your vehicle decision.
Miles Per Gallon equivalent measures how far a vehicle travels on the energy equivalent of one gallon of gasoline (33.705 kWh). It allows direct efficiency comparison between gas, hybrid, and electric vehicles. Higher MPGe = more efficient.
MPGe and MPG both measure efficiency, but MPGe converts electrical energy to gasoline equivalent. An EV at 120 MPGe is about 4× more energy-efficient than a gas car at 30 MPG. This is because electric motors are 85–90% efficient vs. 20–35% for engines.
Excellent: 130+ MPGe (efficient compact EVs). Good: 100–130 MPGe (mid-size EVs, SUVs). Average PHEV: 60–90 MPGe (combined). Below 60 MPGe suggests a large or inefficient vehicle.
Electric motors convert 85–90% of electrical energy to motion. Gas engines waste 65–80% of fuel energy as heat. This fundamental difference means EVs need far less total energy per mile, reflected in their much higher MPGe ratings.
Not directly. MPGe measures energy efficiency, but electricity costs about 1/3 to 1/4 per kWh compared to gas per gallon equivalent. So an EV is even cheaper to run than its MPGe advantage suggests, because electricity prices are lower per unit of energy.
PHEVs have two MPGe ratings: electric-only mode (80–120 MPGe) and combined/gas mode (30–50 MPG). The EPA's combined MPGe averages both modes based on assumed driving patterns. Your actual MPGe depends heavily on how much you drive in electric mode.