Updated July 28, 2026 - AAA daily average
Diesel Cost per Gallon in New Hampshire (2026)
$5.39/GAL
+0.26 vs US average ($5.13)Rank #35 of 50 statesPADD 1
Diesel Tax Breakdown
Federal diesel excise tax24.4c/gal
New Hampshire state diesel tax22.2c/gal
Total tax46.6c/gal
Tax as % of price9%
Sources: Federation of Tax Administrators, EIA. Rates as of April 2026.
Nearby States Comparison
CALCULATE YOUR FUEL COST IN NEW HAMPSHIRE
Use our trip calculator prefilled at $5.39/gal for New Hampshire.
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.