Can I run a curling iron on a 15-amp circuit?

Yes. At about 0.75 A it stays under the 12 A continuous limit (80% of 15 A) that applies to a 15 A breaker, leaving room on the circuit.

What size breaker does a curling iron need?

Guidance for a dedicated circuit is a 15 A breaker with 14 AWG copper wire (75°C terminations). Always size from the nameplate and confirm with a licensed electrician: conductor length, ambient temperature, and local code change the answer.

How many watts does a curling iron use?

Curling Iron typically draws about 90 running watts. See what that costs on our cost-to-run page, or use the wattage chart for other appliances.

How Many Amps Does a Curling Iron Use?

Curling Iron draws about 0.75 amps at 120 volts (90 watts running). At 0.75 A, a curling iron fits comfortably on a standard 15 A or 20 A household circuit.

Power (watts)

Voltage

Amps = watts ÷ volts. Enter the wattage from your appliance's nameplate or label for an exact figure.

Current draw: a curling iron

0.8 A

At 120 V: 90 W
Typical breaker: 15 A

Breaker figure is guidance for a simple resistive load; confirm against the nameplate and a licensed electrician.

Curling Iron amperage at 120 V and 240 V

Same 90 W load: the current halves when the voltage doubles. Curling Iron is typically a 120 V appliance in US homes.

Draw	Watts	Amps at 120 V	Amps at 240 V
Running	90 W	0.75 A	0.38 A

Breaker and circuit for a curling iron

At 0.75 A, a curling iron fits comfortably on a standard 15 A or 20 A household circuit. For a dedicated circuit, guidance is a 15 A breaker with 14 AWG copper (75°C terminations).

Guidance only: actual circuit sizing depends on your unit's nameplate, wire run length, and local code. Confirm with a licensed electrician. See the wire & breaker size chart for the full NEC ampacity table.

Measure what a curling iron actually draws

The figures above are typical ratings. A plug-in power meter between the outlet and the cord shows the real amps and watts with nothing opened up. A clamp meter reads one conductor at a time, so it is the tool for hardwired and 240 V circuits; clamped around a whole cord it reads close to zero.

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Plug-in power meter

P3 International Kill A Watt P4400

Best for: Measuring what one plug-in appliance really uses

Check price at P3 International

Clamp meter

Fluke 323

Best for: Measuring what a hardwired circuit actually draws, even in a crowded panel

Check price on Amazon(paid link)

Energy meter and monitor picks

Frequently asked questions

Curling Iron typically draws about 0.75 amps at 120 volts, based on a typical rating of 90 watts (amps = watts ÷ volts). Check the nameplate on your specific unit: ratings vary by model.

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How Many Amps Does a Curling Iron Use?

Curling Iron amperage at 120 V and 240 V

Breaker and circuit for a curling iron

Measure what a curling iron actually draws

P3 International Kill A Watt P4400

Fluke 323

Frequently asked questions