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What is the MPG of hydrogen fuel?

Hydrogen fuel vehicles can achieve impressive fuel efficiency, with some models boasting a miles per gallon (MPG) equivalent of over 60 MPGe. However, the actual MPG can vary depending on the specific vehicle and driving conditions.


What is the MPG of Hydrogen Fuel Vehicles?


Hydrogen fuel cell vehicles, which use hydrogen gas to generate electricity and power the vehicle's electric motor, are generally more efficient than traditional gasoline-powered cars. The U.S. Department of Energy reports that the average MPGe (miles per gallon equivalent) for hydrogen fuel cell vehicles is around 60 MPGe, with some models achieving over 70 MPGe.


The MPGe metric is used to compare the fuel efficiency of alternative fuel vehicles, like hydrogen and electric cars, to the traditional miles per gallon (MPG) metric used for gasoline-powered vehicles. One gallon of gasoline contains about 33.7 kilowatt-hours (kWh) of energy, so 1 MPGe is equivalent to 33.7 kWh of electricity or 1 gallon of gasoline.


Factors Affecting Hydrogen Fuel Vehicle MPG


The actual MPG of a hydrogen fuel cell vehicle can vary based on several factors:



  • Vehicle Model: Different hydrogen fuel cell vehicle models have varying levels of efficiency and power, which can impact the MPGe rating. Newer and more advanced models tend to have higher MPGe ratings.

  • Driving Conditions: Like gasoline-powered vehicles, the MPGe of a hydrogen car can be affected by factors such as driving speed, acceleration, terrain, and weather conditions.

  • Hydrogen Refueling: The way the vehicle is refueled with hydrogen can also impact the MPGe, as some refueling methods may be more efficient than others.


It's important to note that the MPGe rating is an estimate and may not reflect the exact real-world fuel efficiency experienced by the driver. Actual MPGe can vary based on individual driving habits and conditions.


Advantages of Hydrogen Fuel Vehicles


In addition to their high fuel efficiency, hydrogen fuel cell vehicles offer several other advantages:



  • Zero Emissions: Hydrogen fuel cell vehicles produce no direct emissions, making them a clean and environmentally-friendly transportation option.

  • Refueling Time: Hydrogen vehicles can be refueled in a matter of minutes, similar to traditional gasoline-powered cars, unlike electric vehicles that require longer charging times.

  • Range: Many hydrogen fuel cell vehicles have a driving range comparable to or exceeding that of gasoline-powered cars, with some models offering over 300 miles of range on a single tank of hydrogen.


As hydrogen fuel infrastructure continues to expand and the technology advances, hydrogen fuel cell vehicles are poised to play an increasingly important role in the transition to a more sustainable transportation future.

How many miles per gallon does hydrogen fuel get?


First, you need to know that hydrogen fuel isn't measured by gallons – it's measured by kilograms. A full tank for a Mirai is approximately five kilograms, and on a full tank, it gets about 66 MPGe (miles per gallon equivalent) of hydrogen gas.



How far will 1kg of hydrogen take a car?


A fuel cell car can travel about 100 kilometers on one kilogram of hydrogen. This makes the cost per kilometer of a hydrogen car currently about the same as for combustion vehicles.



What is the mileage of 1 kg of hydrogen fuel?


1 kg of hydrogen allows a vehicle to travel approximately 60 miles on average, though this can vary significantly based on the vehicle's efficiency. For context, 1 kg of hydrogen has a similar energy content to one gallon of gasoline, but a hydrogen fuel cell vehicle (FCV) typically travels about 60 miles on this amount, whereas a conventional gasoline car gets around 25 miles per gallon.
 

  • Average mileage: A fuel cell electric vehicle (FCV) can travel about 60 miles per kilogram of hydrogen. 
  • Energy comparison: The energy in 1 kg of hydrogen is roughly equivalent to the energy in one gallon of gasoline. 
  • Efficiency context: This means FCVs have a high energy efficiency, with an average of 60 miles per kilogram compared to the average of 25 miles per gallon for gasoline vehicles. 
  • Real-world examples:
    • The 2022 Toyota Mirai gets an average of 70 miles per kilogram on the highway and 75 in cities. 
    • A 2016 model year Toyota Mirai had an EPA-rated fuel economy of 66 mpg-equivalent. 
    • In 2021, the second-generation Mirai set a world record for driving 1,360 km (845 miles) on a single 5.65 kg tank of hydrogen. 
    • A student-built Eco-Runner XIII broke a Guinness World Record, traveling 2,488.4 km (1,546.2 miles) on just 1 kg of hydrogen. 



Is hydrogen fuel cheaper than gas?


No, hydrogen fuel is currently not cheaper than gasoline, and the cost per mile for hydrogen fuel cell vehicles is significantly higher than for gasoline vehicles. While hydrogen fuel cell vehicles can be more fuel-efficient, the high cost of the fuel itself makes the cost-per-mile higher. 
Current cost comparison

  • Hydrogen is more expensive: Current prices for hydrogen fuel are significantly higher than gasoline on a cost-per-mile basis, sometimes three to four and a half times higher. 
  • Reasons for higher cost: The higher cost is due to several factors, including the energy-intensive process of producing hydrogen, and the complex and expensive infrastructure needed for storage and distribution. 
  • Potential for future changes: Some projections anticipate future cost reductions for hydrogen, particularly green hydrogen, if production and distribution costs fall and infrastructure improves. 

Factors influencing cost
  • Fuel efficiency: Hydrogen fuel cell vehicles are more efficient than gasoline engines, meaning a smaller amount of fuel is needed for the same distance. 
  • Production method: The method used to produce hydrogen impacts its cost. 
    • Green hydrogen: (produced from renewable energy) is currently expensive but is expected to become cheaper. 
    • Gray hydrogen: (produced from natural gas) is cheaper to produce but relies on fossil fuels. 
  • Incentives: Some areas, like California, offer subsidies that can lower the retail price of hydrogen fuel. 

What this means for drivers
  • Higher per-mile costs: For a consumer in 2025, the cost of fueling a hydrogen vehicle is higher than a gasoline vehicle. 
  • Potential long-term savings: If the cost of hydrogen fuel decreases significantly in the future, the cost per mile could become more competitive, especially when combined with the higher efficiency of the vehicles. 


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.