The power consumed by your electric iron is actually less than what the calculator shows. The reason for that is, if you have to iron bunch of clothes and you know it will take 30 minutes to do it you don’t keep the electric iron turned ON for the whole 30 minutes you turn it ON and once the bottom plate of the iron is hot you turn OFF the power supply.
When the bottom plate of the iron becomes cold and you can see that it cannot iron your clothes properly you turn ON the power supply to get the plate heated up.
I have analysed that whenever we iron our clothes the electric iron is turned ON for maximum 50% of the time and for the rest of the time it is OFF but the heated plate gets the job done.
So whatever value you are getting in the calculator just divide it by 2 to get the actual power consumption of your electric iron.
Thank you for reading, hope this solved all your questions about electric iron power consumption.