Michigan → Indiana · Interstate 75 / Interstate 94
The drive from Detroit, Michigan, to Indianapolis, Indiana, covers about 456 km (283 miles) along Interstate 75 / Interstate 94, with an estimated travel time of 4h 21m in normal traffic conditions. Detroit is the Motor City and historic capital of the American auto industry, while Indianapolis stands out as the capital of Indiana and home of the Indianapolis 500 motor race. 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 41.5 liters (11.0 gallons), costing about $38.18 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 $196.08. Keep the trip log, business purpose, odometer readings, and exact route documented in your Clara receipt for IRS compliance and internal audit defensibility.