Massachusetts → Pennsylvania · Interstate 90 (Massachusetts Turnpike)
The drive from Boston, Massachusetts, to Philadelphia, Pennsylvania, covers about 514 km (319 miles) along Interstate 90 (Massachusetts Turnpike), with an estimated travel time of 4h 54m in normal traffic conditions. Boston is the New England capital and one of the oldest US cities, while Philadelphia stands out as the birthplace of American independence and sixth-largest US city. Sales reps, consultants, real-estate agents and field service professionals who run this route regularly typically depart at sunrise to clear the urban congestion before rush hour and arrive in time for scheduled morning meetings. It also pays to scout two or three reliable fuel-and-rest stops along the way before departure. Assuming average fuel economy of about 26 mpg on regular unleaded, the trip burns roughly 46.7 liters (12.3 gallons), costing about $42.96 at typical pump prices. For mileage reimbursement, applying the IRS standard mileage rate (2025) of $0.43/km ($0.69/mile) yields a one-way payout of $221.02. Keep the trip log, business purpose, odometer readings, and exact route documented in your Clara receipt for IRS compliance and internal audit defensibility.