Diesel Prices in New Hampshire Today
Average diesel price in New Hampshire: $6.406 per gallon on September 22, 2026. U.S. average $6.529. Updated daily.
What is the price of diesel in New Hampshire today?
Diesel in New Hampshire averages $6.406 per gallon today (September 22, 2026), $0.123 less than the U.S. average of $6.529. New Hampshire ranks #27 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.02 per mile on fuel in New Hampshire.
per gallon today
U.S. average $6.529
of 51 (1 = cheapest)
semi truck, today
Fuel cost per mile in New Hampshire
Estimated diesel cost at today's New Hampshire price of $6.406 a gallon, using fuel economy calibrated to FHWA and NACFE data.
| Truck | Fuel per mile | Fuel per 1,000 miles |
|---|---|---|
| Dry Van38,000 lbs, ~6.3 mpg | $1.02 | $1,019 |
| Reefer38,000 lbs, ~6.0 mpg | $1.06 | $1,061 |
| Flatbed40,000 lbs, ~6.0 mpg | $1.06 | $1,059 |
| Hotshot12,000 lbs, ~8.9 mpg | $0.72 | $719 |
| Box Truck7,000 lbs, ~9.1 mpg | $0.70 | $702 |
Your numbers depend on load weight, speed, terrain and idling. Enter them in the truck fuel cost calculator for an exact estimate.
Frequently asked questions
What is the price of diesel in New Hampshire today?
Diesel in New Hampshire averages $6.406 per gallon today (September 22, 2026), $0.123 less than the U.S. average of $6.529. New Hampshire ranks #27 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.02 per mile on fuel in New Hampshire.
How much does it cost to fill a semi truck in New Hampshire?
At $6.41 a gallon, 150 gallons of diesel costs about $961 and 200 gallons about $1,281 in New Hampshire today.
Is diesel cheaper in New Hampshire than nearby states?
Among nearby states in the same region, the cheapest today is Rhode Island at $6.355 a gallon. New Hampshire is $6.406.
How often are New Hampshire diesel prices updated?
Every day. This page refreshes each morning from daily state averages, with the EIA weekly survey as a backup.
| Rhode Island | $6.355 |
| Massachusetts | $6.390 |
| Vermont | $6.459 |
| Connecticut | $6.474 |
| Maine | $6.516 |
Source: AAA daily state average, September 22, 2026. All 50 states
Running freight through New Hampshire?
Texas Solutions dispatches semis for 5%, hotshots for 8% and box trucks for 10% of weekly gross. We plan lanes to cut empty miles and fuel.