Nevada → California · Interstate 15
Heading out from Las Vegas, Nevada, toward San Diego, California, the driver covers roughly 503 km (313 miles) primarily on Interstate 15, spending around 4h 47m between origin and destination outside peak hours. Departing from Las Vegas, the leading entertainment and conventions destination in the US Southwest, the route traverses areas with distinct economic profiles before reaching San Diego, the southern California port city on the Mexican border. Trip planning should always include checking road conditions, toll plazas, active work zones, and the regional weather forecast — winter storms, holiday weekends and summer construction can each extend the schedule meaningfully. Estimated fuel cost — based on 45.7 liters of regular unleaded at 0.92 USD/liter — runs about $42.04. Applying the IRS standard mileage rate (2025) reimbursement rate of $0.43/km produces a one-way reimbursement of $216.29. Use the calculator below to issue a formal receipt capturing origin, destination, date, business purpose, and total — ready to submit to finance or export to Clara.