Updated April 29, 2026 - EIA Weekly Survey
Diesel Cost per Gallon in Connecticut (2026)
$5.73/GAL
+0.14 vs US average ($5.59)Rank #44 of 50 statesPADD 1
Diesel Tax Breakdown
Federal diesel excise tax24.4c/gal
Connecticut state diesel tax37.7c/gal
Total tax62.1c/gal
Tax as % of price1084%
Sources: Federation of Tax Administrators, EIA. Rates as of April 2026.
Nearby States Comparison
CALCULATE YOUR FUEL COST IN CONNECTICUT
Use our trip calculator prefilled at $5.73/gal for Connecticut.
Sources: EIA Weekly On-Highway Diesel Fuel Survey, AAA Gas Prices (gasprices.aaa.com), Federation of Tax Administrators diesel tax table. Updated April 29, 2026. State prices are representative averages; actual pump prices vary by retailer and location.