US average No. 2 diesel price: $6.285/gal. Weekly EIA retail diesel prices for the US and all five PADD regions. As a result of these statistical methodology changes, the published retail on-highway diesel fuel prices for June 13, 2022 are not directly comparable to those published for June 6, 2022. Today's U.S. national average diesel price, sourced from the U.S. Energy Information Administration (EIA) weekly retail on-highway diesel index. Updated weekly. Today’s average diesel price for all 50 states and DC, updated 9/9/26 from AAA — the national average is $5.94/gal, ranked cheapest first. Diesel prices today: the U.S. average is $6.29/gal, about $1.97 more than regular gas. See the diesel trend, records, and why diesel costs more — EIA data. What's up (and down) with gasoline prices? How do I calculate/find diesel fuel surcharges? Compare diesel fuel prices across all 50 US states. Updated weekly from official EIA data. View by-state trends, chart/map workflows, and API access. Live US diesel prices, refreshed multiple times per day from 8,034 truck stops across 48 states. National median, per-state breakdown, and where the spread is widest. Diesel in United States is priced at $6.284/gal — 35.0% above the gasoline rate. The Americas norm from 24 markets is diesel 3.0% below gasoline, so wider here. Petrol costs $4.656/gal in United States, equal to $1.230 a litre and 21.8% below the $1.573 world average. Fuel prices / USA Gas prices in the USA today Regular gasoline averages $4.16 a gallon across the United States in the week of 7 September 2026, and on-highway diesel $5.97 — official weekly retail averages from the U.S. Energy Information Administration, including taxes.