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Understanding Your Energy Usage
Calculate your power consumptionWritten by Caitlin Ritchie
Edited by Jamie Cesanek
Last updated 09/18/2023
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Key Points
- The amount of energy you use directly impacts your monthly electricity bill.
- You can estimate your monthly energy usage using the formulas listed on this page.
- Understanding and lowering your usage can help you save on energy bills.
| Coffee Maker | 900-1200 watts |
| Toaster | 800-1400 watts |
| Iron | 100-1800 watts |
| Ceiling fan | 65-175 watts |
| Space heater (40gal) | 4500-5500 watts |
| Hair dryer | 1200-1875 watts |
| Laptop | 50 watts |
| Computer monitor | 150 watts |
| Computer tower | 120 watts |
| Television 19"-36" | 65-133 watts |
| Television 53"-61" | 170 watts |
Caitlin Ritchie
Caitlin Ritchie is a writer and editor within the energy industry, specializing in deregulation, energy efficiency, and solar power. Her writing and research have been cited by Snopes, The Washington Post, The American Solar Energy Society, and other major sources. Find more of Caitlin’s work at CNET.com and ChooseEnergy.com, or connect on LinkedIn.
Jamie Cesanek
Jamie Cesanek is an editor who enjoys working with writers to make complex topics more understandable for readers. Though she now brings her focus to energy, she has previously written and edited health content and arts and humanities topics. Find her on LinkedIn.