Calculate your cost
Start with the example below, then replace the wattage, daily runtime, and rate with the numbers for your curling iron.
This setup uses about 0 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 0.15 | $0.04 |
| Page example | 0.3 | $0.08 |
| Longer runtime | 0.45 | $0.13 |
Same 50-watt input and 18.83¢/kWh rate; only runtime changes.
Formula for the page example
0.05 kW × 0.3 hr × $0.1883 = $0.00 per day
Convert watts to kilowatts, multiply by the active hours used each day, then multiply by the electricity price in dollars per kWh. Multiply the daily result by 30 for the monthly estimate shown above.
How to read this estimate
Like hair straighteners, curling irons hold a steady temperature with relatively low wattage, keeping their daily energy cost to pennies.
Use this as a baseline until you can check the label or measure the curling iron directly. Model, settings, condition, climate, and household routine can all change the result.
What changes the cost?
- 01
Barrel size and material
- 02
Heat setting used
- 03
Duration of styling session
Ways to spend less
- Unplug the iron as soon as you finish the last curl.
- Style with smaller sections of hair so each curl sets faster.
- Never leave it preheating unattended.