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How much is a full tank for a Dodge Charger?

A full tank on a Dodge Charger is about 18.5 gallons, and the cost to fill it depends on local gas prices and the fuel grade you use. In everyday terms, expect roughly $60 to $90 to refill, with variations by region and octane requirements.


Tank capacity and fuel requirements


Understanding the Charger’s fuel capacity helps you estimate a fill-up. Most Charger configurations share an 18.5-gallon tank, though how much you actually put in can vary with driving habits and the filler design. Fuel grade matters too: standard models typically run on regular unleaded, while high-performance variants require premium.


Model-by-model notes


Here are the general guidelines for fuel and tank size across common Charger variants:



  • Most non-performance and mid-range trims (e.g., V6 and standard V8) use an 18.5-gallon tank and can run on regular 87 octane.

  • Sports-focused and high-performance variants, including SRT and Hellcat versions, also share the 18.5-gallon capacity but require premium 93 octane fuel for optimal performance.

  • Actual usable fuel may be slightly less than the nominal capacity due to filler behavior and safety features.


In practice, drivers may fill to near the top but rarely to the absolute maximum capacity. Always follow the fuel recommendations in your owner’s manual for best performance and efficiency.


Estimating the cost to fill your Charger


To estimate the cost of a full tank, you simply multiply the price per gallon by the tank’s capacity, adjusting for the fuel grade you use and your current state of fill.


Price-driven cost estimates


The following scenarios illustrate how costs can vary with fuel prices. Use your local price per gallon to calculate your own total.



  • At $3.00 per gallon: 18.5 gallons × $3.00 = $55.50

  • At $3.50 per gallon: 18.5 gallons × $3.50 = $64.75

  • At $4.50 per gallon: 18.5 gallons × $4.50 = $83.25


Note: If your Charger requires premium fuel (93 octane) for certain trims, the per-gallon price is typically higher than regular, pushing the total fill cost upward accordingly. If your tank isn’t empty, simply multiply the days of fuel needed by the current price per gallon for a precise figure.


Regional variation and practical tips


Gas prices vary widely by region, city, and even neighborhood. To get an accurate estimate for your location, check a trusted price source near you and adjust the calculation accordingly. Consider these practical tips when planning a fill-up:



  • Use your preferred fuel grade based on your Charger’s require­ments (87 octane for most trims; 93 octane for SRT/Hellcat variants).

  • Check current average prices with apps or websites that track local gas prices (e.g., regional fuel price guides or car clubs).

  • Account for taxes and any regional surcharges that may affect the per-gallon price.


In practice, most drivers will see a fill cost that reflects local fuel pricing patterns, with premium-fuel models costing a bit more than regular-grade fills.


Summary


The Dodge Charger typically carries an 18.5-gallon tank across most trims, with premium-only requirements for high-performance variants. To estimate a full-tank cost, multiply the price per gallon by 18.5, adjusting for the fuel grade you use and your local taxes. In the current market, a full tank usually falls in the broad range of roughly $55 to $85, but real-world numbers depend on where you live and which Charger you drive. Always check your vehicle’s manual for exact fuel requirements and use live local gas prices to calculate an up-to-date total.

How much does $20 fill up a tank?


$20 can fill up a tank by about half to one-third, depending on the local gas price and the car's tank size. For example, at the average U.S. price of about $3.13 per gallon, $20 would buy about six gallons, which would fill a 12-15 gallon tank roughly halfway. At higher prices, like $5.02 per gallon, $20 would only buy about four gallons, or one-third of a tank.
 
How to calculate for your specific vehicle

  1. Find your average price per gallon. Check a site like AAA Fuel Prices for the current national or local average. 
  2. Divide $20 by the price per gallon to find out how many gallons you will get. 
    • Formula: 20÷Price per Gallon=Gallons you can buy20 divided by Price per Gallon equals Gallons you can buy20÷Price per Gallon=Gallons you can buy 
    • Example (at \$3.13/gallon): $20÷$3.13≈6.39$ 20 divided by $ 3.13 is approximately equal to 6.39$20÷$3.13≈6.39 gallons 
  3. Find your vehicle's tank size. This is often between 12 and 15 gallons for a standard car, but you can find the exact number in your owner's manual. 
  4. Divide the gallons you can buy by your tank size to see what fraction of the tank you'll fill. 
    • Formula: Gallons you can buyTank Size=Fraction of tank filledthe fraction with numerator Gallons you can buy and denominator Tank Size end-fraction equals Fraction of tank filledGallons you can buyTank Size=Fraction of tank filled 
    • Example (for a 12-gallon tank): 6.3912≈0.536.39 over 12 end-fraction is approximately equal to 0.536.3912≈0.53, or about 53% of the tank. 



How much does it cost to fill a full tank?


And $56. For a sedan with the average gas tank size of 12 gall. It will cost a approximately $42 to fill up with the current gas prices. A crossover SUV has a slightly larger tank of around 16 gall.



How much is gas in a charger?


The Charger has a gas tank size of 18.5 gallons which makes the Charger a durable staple on any highway.



How much does it cost to fill up a Dodge Charger?


Related: 2019 Dodge Charger: Iconic Badassery Dies Hard
Using the national average ahead of the Independence Day weekend, filling the tank from empty would cost $52.73. In California, where regular averaged $3.66 to be the highest in the contiguous U.S., that cost would climb to $67.71.


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.