Updated July 28, 2026 - AAA daily average
Diesel Cost per Gallon in Utah (2026)
$5.27/GAL
+0.14 vs US average ($5.13)Rank #27 of 50 statesPADD 4
Diesel Tax Breakdown
Federal diesel excise tax24.4c/gal
Utah state diesel tax36.4c/gal
Total tax60.8c/gal
Tax as % of price12%
Sources: Federation of Tax Administrators, EIA. Rates as of April 2026.
CALCULATE YOUR FUEL COST IN UTAH
Use our trip calculator prefilled at $5.27/gal for Utah.
Sources: State diesel average from AAA Gas Prices (gasprices.aaa.com), July 28, 2026; US average and PADD context from the EIA Weekly On-Highway Diesel Fuel Survey (July 20, 2026); state tax from the Federation of Tax Administrators diesel tax table. State prices are representative averages; actual pump prices vary by retailer and location.