Skip to calculator

Financial tools for understanding prices, value, and purchasing power.

BLS average price

How much did diesel fuel cost in August 2018?

Diesel fuel averaged $3.21 per gallon in August 2018.

$3.21

per gallon in August 2018

Adjusted with CPI-U, that is about $4.26 in 2026 dollars.

See calculation

Source: U.S. Bureau of Labor Statistics Average Price Data, APU000074717. Imported from BLS bulk time-series files (raw published monthly values).

Related historical prices

Diesel fuel prices in 2018
Historical diesel prices
Diesel fuel prices in July 2018
Diesel fuel prices in September 2018
Gas inflation calculator

Data: U.S. Bureau of Labor Statistics — CPI-U. Series CUUR0000SA0, base period 1982–84 = 100. Coverage: 1913–2026. April CPI is used for 2026 until the annual average is published.

Built with Ruby on Rails & Hotwire.