Martin Lewis has explained how you can easily calculate the cost of running any electrical household appliance. Appearing alongside Susanna Reid on today's Good Morning Britain (Oct 10), he explained the maths people can do by using the example of cooking a jacket potato.
The Money Saving Expert founder suggested it would be cheaper to cook a spud in a microwave rather than an oven because of the wattage of each appliance and how long you would need to use them for. The only exception to this would be if you are cooking six or more potatoes.
Martin said: "A typical microwave is 1000 watts - 1000 watts is a kilowatt (kw)- so we know a KW of electricity under the new price cap guarantee is 34p. How long does a jacket potato take - we say about 10 minutes in a microwave.