Skip to content
What Size Bro!
  • Generator
  • Kitchen
  • TV
  • Pet
  • Recent Guides
  • CalculatorExpand
    • House Generator Size Calculator
    • Bathroom Mirror Size Calculator
    • TV Size For Room Calculator
    • Water Heater Size Calculator
    • Ceiling Fan Size Calculator
    • Tablecloth Size Calculator
    • Bike Wheel Size Calculator
    • Rug Size Calculator
    • Septic Tank Size Calculator
What Size Bro!

How Many Watts Does A 4 Ton AC Unit Use?

Edited ByShanto Hours Updated onOctober 3, 2022 Categories AC

We may earn affiliate fees for purchases using our links (at no additional cost to you).

A 4 ton ac unit is a unique cooling system to have in your home. But how many watts does a 4 ton ac unit use?

And is that something you need to worry about when upgrading or replacing your air conditioner? 

We’ll take a closer look at the wattage a 4 ton ac unit consumes and what you can do to offset any increases in your monthly energy bill.

How Many Watts Does A 4 Ton Ac Unit Use

A 4 ton ac unit uses about 9,000 watts of power. This significantly increases from the 1,500 watts that a central air conditioner uses.

How Many Watts Does A 4 Ton Ac Unit Use

For comparison, a window air conditioner only uses about 700 watts. 

The reason for this increase is the size of the compressor and the fan motor. These two components work together to move cooled air throughout your home.

A 4-ton air conditioner uses the following amount of electricity:

SEER Rating4-Ton AC Average Wattage4-Ton AC Maximum Wattage
14 SEER 4-Ton AC3429 Watts5911 Watts
15 SEER 4-Ton AC3200 Watts5517 Watts
16 SEER 4-Ton AC3000 Watts5172 Watts
17 SEER 4-Ton AC2824 Watts4868 Watts
18 SEER 4-Ton AC2667 Watts4598 Watts
19 SEER 4-Ton AC2526 Watts4356 Watts
20 SEER 4-Ton AC2400 Watts4138 Watts
21 SEER 4-Ton AC2256 Watts3941 Watts
22 SEER 4-Ton AC2182 Watts3762 Watts
23 SEER 4-Ton AC2087 Watts3598 Watts
24 SEER 4-Ton AC2000 Watts3448 Watts
25 SEER 4-Ton AC1920 Watts3310 Watts

How To Calculate Air Conditioner Wattage

How To Calculate Air Conditioner Wattage

It is easy to calculate the wattage of your air conditioner. All you need is a Nerdy tool like a Kill A Watt or a wattage meter. 

If you want to be really geeky about it, you can use an online calculator like this one from the Department of Energy.

We must first distinguish between maximum wattage and average wattage:

An AC’s wattage when running at 100% cooling output is known as the maximum running wattage.

How Many Watts Does A 6000 Btu AC Use? (Quick Facts)

For example, an 18 SEER 3-ton air conditioner has a maximum running wattage of 3,450 watts.

Actual wattage your air conditioner consumes is known as running wattage.

The SEER rating, which stands for Seasonal Energy Efficiency Ratio, determines how many watts (on average) your air conditioner uses. 

Also, the SEER rating influences this; a central air conditioner with a SEER of 13 operates at 58% cooling output (it’s a weighted average; you can find out more here about calculating the SEER rating). 

Besides, the SEER rating helps us calculate the maximum wattage your AC unit can use. Follow the below calculation to find your air conditioner’s wattage:

The average wattage of an air conditioner is calculated by dividing the capacity in BTUs (the 12,000 BTU conversion factor) by the SEER rating.

What Size AC Unit Do I Need? Ultimate Guide For 2022

Average AC Wattage (18 SEER 3-Ton) = 3 Tons × 12,000 BTU / 18 SEER = 2,000 Watts

This 18 SEER 3-ton AC will average consume 2 kWh per hour. However, during the on and off cycles, it can use 100W, 500W, 1,500W, 2,000W,3 000 watts, or even 3 450 watts but typically uses about 2000 watts.

We can calculate the maximum wattage that your air conditioner can use by multiplying the cooling capacity in BTUs (the 12,000 BTU conversion factor) by the SEER rating.

Maximum AC Wattage = Average AC Wattage / 0.58 

The above example shows how to calculate the wattage of an air conditioner. However, this is only one way to do it.

4-Ton AC Maximum Wattage

Which Factors Affecting On AC Power Consumption

Which Factors Affecting On AC Power Consumption

Multiple factors will affect the power consumption of your air conditioner. These include:

  1. The size of your air conditioner: An air conditioner that is too small or too large for the room will have to work harder, using more power, to maintain the desired temperature.
  2. Age of air conditioner: Older air conditioners are less efficient than newer models and will use more power.
  3. Cooling capacity: A higher cooling capacity means that more power is required to operate the unit.
  4. SEER rating: The Seasonal Energy Efficiency Ratio (SEER) is a measure of how much cooling your air conditioner can provide per watt of power consumed. You need to know that, if the SEER rating is higher, then more efficient of the Ac.
  5. No of people in the room: More people in the room will generate more heat, requiring the air conditioner to work harder and use more power.
  6. The room temperature: A higher temperature will require the air conditioner to work harder to cool the room down, using more power.
  7. The insulation of Ac: Good insulation will keep the heat out, making it easier for the air conditioner to cool the room and use less power.
  8. Number of windows: More windows mean more heat coming into the room, making it harder for the air conditioner to maintain the desired temperature and use more power.
  9. The sun exposure of the room: A room exposed to direct sunlight will be warmer, making it harder for the air conditioner to maintain the desired temperature and use more power.
  10. The number of appliances in the room: Appliances generate heat, making it harder for the air conditioner to maintain the desired temperature and use more power.

Now that we understand how to calculate the wattage of an air conditioner.

So when you search for an air conditioner, consider all the factors that will affect its power consumption.

FAQs

How Much Power Does 4 Ton Of AC Consume?

The consumption of a four-ton air conditioner is around 4 kWh per hour. If a four-ton air conditioner consumed 12 kWh each day, the usage would be 48 per day. 
It is essential to keep in mind that the size of the air conditioner is not the only factor that will affect the power consumption.

How Many Units Does AC Consume Per Hour?

It depends on the size of the AC, age of AC, cooling capacity, the SEER rating, and other factors. But A 5-star air conditioner (1.5 tons) consumes 1.6 units each hour. 
Whereas a 3-star air conditioner (1.5 tons) uses 1.7 units each hour. So, a 5-star 1.5 ton AC would use 40% less power than a 3-star 1.5 ton AC.

Is It Cheaper To Run AC All Day?

Your air conditioning will last considerably longer if it is left on all day instead of being turned off. It is cheaper to run the AC all day if you have a good insulation in your house. 
If you do not have good insulation, turning the AC off when you leave the house is better. So, it all depends on the insulation of your house. 

Why Does AC Use So Much Electricity?

Inside the evaporator coil, the Freon is pressurized and turns from a liquid to a gas. As it evaporates, it absorbs heat from the air around it, cooling the air inside your home. 
When the Freon reaches the compressor, it is turned back into a liquid so that it can start the process again. This process uses a lot of electricity.

Final Thoughts

We hope this article has helped you understand how much power an air conditioner uses and the factors that affect its power consumption.

Be sure to consider all of these factors when searching for an air conditioner. 

So that you can find the most efficient model for your needs. Also, be sure to check the SEER rating to ensure that you are getting a quality air conditioner.

Post navigation

Previous Previous
How To Stop Wool Rug From Shedding? (10 Different Ways)
NextContinue
How Many Watts Does A 10,000 BTU Air Conditioner Use?

Check Our Latest Guide

  • Things That Are 1 Meter Long
  • What Are The Dimensions Of A 55 Inch TV?
  • What size tablecloth for 48 x 72 table?
  • What size trowel for 4×4 tile?
  • Hot Water Heater Pressure Relief Valve Keeps Opening
shanto

My name is Shanto and I am the editor in chief of the popular blog, "What Size Bro." Our mission is to help everyone find the perfect product, whether it is for home improvement or for electronic gadgets. We believe that every guy deserves to have the perfect size for whatever he is using.

  • About Us
  • Contact Us
  • Disclaimer
  • Privacy Policy
  • DMCA
  • Sitemap
  • Blog

Copyright © 2022 by What Size Bro.Com! We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

Scroll to top
  • Generator
  • Kitchen
  • TV
  • Pet
  • Recent Guides
  • Calculator
    • House Generator Size Calculator
    • Bathroom Mirror Size Calculator
    • TV Size For Room Calculator
    • Water Heater Size Calculator
    • Ceiling Fan Size Calculator
    • Tablecloth Size Calculator
    • Bike Wheel Size Calculator
    • Rug Size Calculator
    • Septic Tank Size Calculator
Search