Semi / Dry Van Cost Per Mile in Maryland

Diesel fuel in Maryland currently averages $5.20 per gallon, which includes a state fuel tax of 42.2¢ per gallon. This is one of the higher fuel tax rates in the country, making fuel cost an outsized portion of your semi / dry van CPM.

Average commercial semi / dry van insurance in Maryland runs approximately $495/month. This moderate premium is typical for the region and should be reviewed annually to ensure you're not overpaying.

Semi trucks average 5.5–7.5 MPG, making fuel the largest single expense — typically 30–40% of total CPM. At these consumption rates, even a $0.20/gallon price difference between states changes your CPM by $0.03–$0.04/mile, which compounds to $300–$450/month at 11,500 miles.

Maryland's proximity to the Port of Baltimore and Washington, D.C., creates strong freight demand but also heavy congestion on I-95 and I-695. Toll facilities on the Bay Bridge and Fort McHenry Tunnel add per-trip costs.

Semi insurance premiums are the highest of any equipment class, reflecting the higher liability exposure and cargo values. Tire costs ($0.04–$0.06/mile), DEF fluid, and DPF maintenance add meaningful variable costs that lighter equipment classes don't face.