The cost of a wedding DJ varies based on factors like location and experience. On average, allocate 10-15% of your wedding budget for a DJ. For more precise figures, consider checking websites like The Knot and Married to Be, which provide detailed insights into wedding DJ costs in different regions and scenarios. These sources recommend budgeting anywhere from $800 to $2,500 or more for a professional wedding DJ, depending on your specific requirements and location.