Question: how much does electricity cost for a hot tub?
Answer: If you think you will spend 25 hours a month in your hot tub, the calculation would be 25 x 7.5 = 187.50. Now that you have an estimate of using 187.50-kilowatt-hours per month, multiply that by your kilowatt-hour cost of 10 and you can expect your electricity bill to increase by $18.75 per month or $225 per year.