In 2018, gas averaged $2.72 nationally — $3.49 in today’s money
regular, at the pump in 2018
inflation-adjusted (CPI-U)
The average U.S. price of a gallon of regular gasoline across 2018, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars.
How 2018 ranks in the 1970–2025 record
The 19th-most-expensive year on record — the 38th-cheapest of 56 years.
The 13th-highest pump price on record — before adjusting for inflation.
How U.S. prices moved through 2018
Weekly U.S. average for regular gasoline. The year’s high was $2.96 the week of May 28, 2018; the low was $2.27 the week of December 31, 2018 — a swing of 30.7%.
2018 vs. the years on either side
U.S. gas prices in 2018, answered
- What was the average price of gas in 2018?
- The U.S. average price of regular gasoline in 2018 was $2.72 per gallon — about $3.49 in 2025 dollars after adjusting for inflation, according to U.S. Energy Information Administration data.
- How does 2018 rank for gas prices in U.S. history?
- Adjusted for inflation, 2018 was the 19th-most-expensive year for regular gasoline out of the 56 years on record (1970–2025). In raw at-the-pump dollars it ranks 13th.
- Were gas prices higher in 2018 than in 2017?
- Adjusted for inflation, regular gasoline was more expensive in 2018 than in 2017, up 10.0% year over year ($3.17 → $3.49 in 2025 dollars).
- How high did gas prices get during 2018?
- The U.S. weekly average for regular gasoline peaked at $2.96 the week of May 28, 2018 and bottomed at $2.27 the week of December 31, 2018 during 2018.
Source: U.S. Energy Information Administration. 2018 is the average of EIA’s twelve monthly U.S. regular (all-formulations) retail prices; the weekly figures above are EIA’s weekly U.S. retail series. Inflation adjustment uses the BLS Consumer Price Index (CPI-U), constant 2025 dollars.