# what is the difference between 110V and 220V? which is cheaper between the two?

### 12 Answers

- Anonymous1 decade agoFavourite answer
Your electric bill is based on kilowatt hours. A kilowatt hour (KWh) cost the same regardless of voltage so there is no difference in cost between 110 VAC or 220 VAC.

The reason for the two voltages is that some appliances, such as your stove, dryer, water heater, draw a lot of power. A water heater is typically 4400 watts. At 110 volts this would be 40 amps. That would take a big wire. At 220 volts, 4400 watts only takes 20 amps. You don't need as big a wire for the same power. The lower current is also a little safer as the potential heating in the wiring is reduced.

This is also why most 110 VAC appliances are limited to about 1200 to 1500 watts. 1200 watts on a 110 VAC circuit is just under 11 amps. 1500 watts is just over 13.5 amps. Most houses have 20 amp circuit breakers but older houses may have 15 amp breakers or fuses. You want some headroom in your fuse or circuit breaker so you don't want to draw 15 amps from a 15 amp fuse or circuit breaker or 20 amps from a 20 amp breaker.

- dschargeLv 51 decade ago
110 is used un the US and in Japan. 220V is an European standard. Probably both used in other countries around the world I don't know all of them.

In most of the countries there is one state standard voltage what you can get. Eg probably in the US you can get 110V only from a standard wall connector. Also In europe in the UK for example there is almost no way to get 110V as standard anywhere so the question as which is cheaper is pointless really.

The difference between them is the voltage. All electric circuits you want to use must be able tu handle the standard you are using: e.g. a tv designed to handle 110V will blow up (well some purts inside :) )if you plug it into 240V etc.

- x xLv 41 decade ago
The difference is very large. 110V is normal electricity you get from your average wall plug. 220V is two-phase electricity normally for your Stove or Dryer or other high voltage equipment.

If you are asking because there is a switch on a piece of equipment for this, then it's because it switches between 50 hz and 60 hz electricity. Using the WRONG setting can and WILL kill your electronics.

In North America we use 60Hz, in Europe they use 50Hz.

To answer your question, neither is any cheaper 'typically' but which of the two situations I described are you talking about?

- Anonymous5 years ago
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what is the difference between 110V and 220V? which is cheaper between the two?

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- 5 years ago
1. 110V took more Current according to load than 220V

2. Wire thick than 220V due to current increase

3. No difference in Cost as your same load

4. Due to high current Electric appliances may demaged

5. Cooling agents will indused than 220V appliances

- InsightLv 41 decade ago
110 Volts, both are AC (Alternating Currents) There is no difference except for the amount. The opposite to AC is however DC. 110V is most common in the USA, while the Canadians use 120V. In Europe the voltage is commonly 220V - 240V. It only means you can draw greater "voltage" for your electric machines and appliances. It also means one must be careful not to cross or plug a lower voltage appliance into higher voltage outputs or visa versa.

Source(s): Angelic Insight. - 6 years ago
For the same power rating 120 V appliances draw more current as compared to 220 V. But comparing both 110v with 220v wiring, you have to keep in mind that they both essentially do the same thing. That is, they produce power to operate electrical outlets. The equation is as follows: Power = Voltage x Current with current measured in amps. When 220v wiring is used, less current is required than with 110v wiring. Power is measured in watts. Thus, to achieve 900 watts of power, 4.1 amps would be required with 220v wiring, whereas approximately 8.2 amps would be required with 110v wiring.

- 1 decade ago
Well, apart from the obvious one that 220 is double 110, in practical terms it means that you can draw more amps through a 220 volt wall socket than a 110 volt one. That's why an electric clothes dryer and other powerful devices like central heating or big window air conditioners have to have a 220 volt supply; there is just not enough current to drive them on 110 volts, and you would probably have a fire as the insulation burned off all the wiring.

Cost is only determined by usage. It just depends on how much electricity you draw and what the energy company charges you.

- 6 years ago
In Philippines my country we have 220 V and 240 V appliances and we also tested 110 V appliances here but the problem is we need to convert the voltage of our appliances to 110 V, so we need to use a device that stepping down the voltage commonly known as voltage regulator. Some says the lower the voltage the cheaper the amount paid in your electric bill and I agree with that opinion. Example I have a power heater plug in the wall socket and have a voltage input of 240 V and I have another with 110 V with 10 A current, which is the cheaper? The formula is multiplying the input voltage to input current which is 240 V X 10 A = 2400 W, while in 110 V X 10 A = 1100 W; then if we convert it to kilowatt hour. They will be like these 2400 W will be 2.4 kWh and 1100 W will be 1.1 kWh then we multiply it to how much does electric company charge an amount in every use of electricity per hour. Example, 10 cents per hour so the formula goes like these (kWh x electric company charge per hour usage of electricity = N), 2.4 kWh X 0.10 cents = Php. 0.24 cents, 1.1 kWh X 0.10 cents = Php. .11 cents. Then multiply it again on how many times you used your appliances and you will get the answer how much you will paid to electric company per using of their electric product per month.