Blow-drying your hair at home costs almost nothing per session - typically 3 to 6 cents of electricity, plus a few cents of product. Even a daily habit runs about $20-$50 a year all in. That is the number that makes an at-home tool such an easy win over the salon, so it is worth breaking down honestly.
The electricity math
Most dryers draw 1,500 to 1,800 watts. A typical 8-to-12-minute dry uses roughly 0.2-0.35 kilowatt-hours. At the 2026 US average of about 17 cents per kWh, that is 3 to 6 cents of power per blowout. Add a heated round brush or an air styler and the wattage is similar, so the per-use cost barely moves.
- Twice a week: roughly $3-$6 of electricity a year.
- Every other day: about $6-$11 a year.
- Daily: around $11-$22 a year.
Don't forget the products
Electricity is the cheap part. Heat protectant, smoothing cream and dry shampoo are the real recurring spend, and they add up faster than power does. A reasonable estimate is $20-$40 a year for someone drying a few times a week, which is why our blowout cost calculator folds a flat products figure into the at-home column. Combine the two and a typical home blowout costs somewhere between 15 and 40 cents once product is counted - still a rounding error next to a $50 salon visit.
Why this closes the case for at-home
The whole cost-of-ownership argument hinges on this per-use figure. If a home blowout truly costs cents, then the only meaningful expense is the one-time tool, and a year of weekly salon blowouts - well over $2,000 with tip - is being spent to avoid a task that costs you less than a dollar a week to do yourself. At the US average electricity rate, you could dry your hair every single day for a year for less than the tip on one salon appointment.
Small levers, small savings
- Rough-dry to 80% with a towel first to cut active dryer time.
- Use the cool shot to set instead of extra hot minutes.
- Buy product in full sizes, not travel minis, to lower cost per use.