Calculate your cost
Start with the example below, then replace the wattage, daily runtime, and rate with the numbers for your hair straightener.
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
Hair straighteners use a low, continuous wattage to maintain high temperatures on ceramic plates for styling.
Use this as a baseline until you can check the label or measure the hair straightener directly. Model, settings, condition, climate, and household routine can all change the result.
What changes the cost?
- 01
Heat setting
- 02
Time spent styling
- 03
Auto-shutoff feature
Ways to spend less
- Turn it off right after styling instead of leaving it on.
- Use a heat setting appropriate for your hair type to finish faster.
- Use heat-protectant sprays to minimize required styling passes.