The cost of toning your hair can vary depending on where you go and the toner you use. In general, the cost of toning your hair at a salon can range from $20 to $100 or more, depending on your hair’s length and thickness and the toning process’s complexity. The cost may be higher if you use a professional-grade toner, as these products are typically more expensive than over-the-counter toners. If you are toning your hair at home, the cost will depend on the type of toner you are using and how much you need. Over-the-counter toners can cost anywhere from $10 to $30 or more, depending on the brand and the product you need. It is always best to compare prices and consult a hair professional before toning your hair to get an idea of the cost.