How Much Does It Cost to Run a Dehumidifier Per Month?
The cost to run a dehumidifier per month generally ranges from $30 to $60 for most homes. This estimate includes electricity usage. Factors like your dehumidifier’s wattage and how often it runs directly impact your bill. We found this to be the average for standard models.
You might see costs outside this range, though. Very powerful units or those running 24/7 will cost more. On the other hand, smaller, energy-efficient models used less often can be cheaper. It really depends on your specific setup and local electricity rates.
- Monthly cost: $30-$60 on average.
- Factors: Dehumidifier size, run time, electricity rates.
- Energy Star models can save you money.
- Emptying the bucket improves efficiency.
- Regular cleaning prevents higher costs.
Want to know exactly how much your dehumidifier is adding to your electric bill? Let’s break down the details, so you can understand and even reduce your operating costs.
Understanding Your Dehumidifier’s Monthly Energy Bill
You want to know what your dehumidifier really costs you each month, right? Most standard dehumidifiers cost between $30 and $60 per month to run. This covers their electricity use. But several factors can make your cost higher or lower.
We’re going to help you figure out your specific costs. We’ll also give you tips to keep that electric bill as low as possible. Let’s dive into what makes the numbers tick.
Key Factors Influencing Dehumidifier Costs
Calculating your dehumidifier’s monthly cost isn’t one-size-fits-all. It’s like asking how much a car costs to drive – it depends on the car, how far you drive it, and the gas prices. For dehumidifiers, it boils down to three main things.
Dehumidifier Wattage (Power Consumption)
The first big factor is your dehumidifier’s wattage. This tells you how much power it uses. Think of it like horsepower for an engine. Higher wattage means more power, which usually means it can remove more moisture. But it also means it uses more electricity.
Most dehumidifiers for homes range from 300 to 700 watts. Smaller models might use less, while very powerful whole-house units can use over 1000 watts. We found that the wattage is often listed on a sticker on the back of the unit or in its manual. This is your starting point for calculating energy use.
How Many Hours Per Day It Runs
How often you run your dehumidifier has a huge impact. If it’s running 24/7, your costs will be much higher than if you only run it a few hours a day. It’s simple: more operating time equals more electricity used.
Many people run their dehumidifiers continuously in very humid climates or damp basements. Others might only use it for a few hours after a shower or during peak humidity. Your usage habits directly affect your monthly bill.
Your Local Electricity Rate
The final puzzle piece is your electricity rate. This is how much your utility company charges you per kilowatt-hour (kWh). Electricity rates vary a lot across the country, even within the same state (Energy Information Administration).
For example, some areas might pay 10 cents per kWh, while others could pay 25 cents or more. To find your exact rate, check your most recent electric bill. It’s usually listed clearly under “Electricity Charges” or “Usage Rate.” This number is essential for an accurate calculation.
Calculating Your Dehumidifier’s Daily and Monthly Cost
Ready to crunch some numbers? Don’t worry, it’s not as scary as it sounds! We’ll walk you through the steps to get a good estimate of your dehumidifier’s daily and monthly cost. Having this information helps you budget better and make informed decisions about running your unit.
Step-by-Step Calculation Guide
Let’s grab your dehumidifier’s wattage, how many hours you run it, and your electricity rate. We’re going to turn those numbers into dollars and cents.
Convert Watts to Kilowatts
First, electricity is usually billed in kilowatt-hours (kWh). Your dehumidifier’s power is likely in watts. So, you need to convert watts to kilowatts. There are 1,000 watts in 1 kilowatt.
- Take your dehumidifier’s wattage (e.g., 500 watts).
- Divide it by 1,000.
- Example: 500 watts / 1,000 = 0.5 kW.
This gives you the power consumption in kilowatts. This is how much power your dehumidifier draws every hour it runs.
Calculate Daily Kilowatt-Hours (kWh) Used
Next, we figure out how many kWh your dehumidifier uses in a day. This depends on how many hours you run it.
- Multiply the kilowatts by the number of hours you run it per day.
- Example: If you run a 0.5 kW dehumidifier for 12 hours a day, that’s 0.5 kW * 12 hours = 6 kWh per day.
This number represents your dehumidifier’s daily energy appetite.
Determine Daily and Monthly Cost
Now for the money part! We’ll use your local electricity rate to find out the cost.
- Multiply your daily kWh by your electricity rate per kWh.
- Example: If your rate is $0.15 per kWh, then 6 kWh * $0.15/kWh = $0.90 per day.
To get the monthly cost, simply multiply the daily cost by the number of days in the month (usually 30 or 31).
- Example: $0.90 per day * 30 days = $27.00 per month.
So, a 500-watt dehumidifier running 12 hours a day at $0.15/kWh would cost about $27 a month. See how different factors change the total?
Cost Comparison Table for Different Scenarios
To make it even clearer, here’s a table showing estimated monthly costs for various dehumidifier sizes and usage patterns. We’re using a common electricity rate of $0.15/kWh for these examples.
| Dehumidifier Size (Pints/Day) | Approx. Wattage | Hours Run Per Day | Estimated Monthly Cost (@ $0.15/kWh) |
|---|---|---|---|
| 20-30 Pint (Small) | 300 Watts | 8 Hours | $10.80 |
| 20-30 Pint (Small) | 300 Watts | 16 Hours | $21.60 |
| 50 Pint (Medium) | 500 Watts | 8 Hours | $18.00 |
| 50 Pint (Medium) | 500 Watts | 16 Hours | $36.00 |
| 50 Pint (Medium) | 500 Watts | 24 Hours | $54.00 |
| 70-90 Pint (Large) | 700 Watts | 16 Hours | $50.40 |
| 70-90 Pint (Large) | 700 Watts | 24 Hours | $75.60 |
As you can see, the difference between running a smaller unit for a few hours and a larger unit continuously can be significant. This table shows you why your specific situation really matters for your final monthly cost.

Smart Strategies to Reduce Dehumidifier Operating Costs
Nobody wants to spend more money than they have to, right? Good news: there are several ways you can lower your dehumidifier’s energy consumption and, in turn, your monthly bill. It’s all about smart usage and maintenance.
Optimize Dehumidifier Settings and Placement
Where and how you run your dehumidifier can make a big difference. It’s not just about turning it on and off. There’s a bit of finesse involved in getting the most bang for your buck.
Set the Humidistat Appropriately
Most dehumidifiers have a humidistat, which is like a thermostat for humidity. You set it to your desired humidity level (e.g., 50%). The unit only runs when the humidity rises above that level. This is a game-changer for efficiency.
Many experts, including the Environmental Protection Agency (EPA), recommend maintaining indoor humidity levels between 30% and 50%. Setting it too low (below 30%) will make your dehumidifier work harder than it needs to, costing you more. Aim for the sweet spot around 45-50% for comfort and cost savings.
Strategic Placement for Maximum Effect
Where you put your dehumidifier matters. Place it in the dampest area of your home, typically a basement, crawl space, or laundry room. Make sure it’s not blocked by furniture or walls, which can hinder airflow.
Also, try to keep doors and windows closed in the area where it’s operating. If you’re dehumidifying your basement, but the windows are open, you’re literally just trying to dry out the neighborhood! That’s money out the window.
Regular Maintenance and Energy-Efficient Choices
Just like a car, your dehumidifier performs best and uses less energy when it’s well-maintained. Plus, if you’re in the market for a new one, choosing wisely upfront can lead to long-term savings.
Clean Filters Regularly
This is a big one! Your dehumidifier has an air filter that traps dust and debris. A dirty filter makes the unit work harder, using more electricity and performing less effectively. We recommend cleaning or replacing the filter at least once a month, more often if you live in a dusty environment or have pets.
Think of it like trying to breathe through a clogged nose. It takes more effort! Your dehumidifier feels the same way with a dirty filter. A clean filter ensures good airflow and optimal energy use.
Consider ENERGY STAR Certified Models
If you’re buying a new dehumidifier, look for one that is ENERGY STAR certified. These models meet strict energy efficiency guidelines set by the EPA.
ENERGY STAR dehumidifiers typically use about 15% less energy than conventional models. While they might cost a bit more upfront, the savings on your electricity bill over time can quickly offset that initial investment. It’s a smart long-term financial choice.
Checklist for Dehumidifier Cost Reduction
Here’s a quick checklist to help you keep those dehumidifier costs in check:
- Set humidistat to 45-50% to prevent over-drying.
- Keep doors and windows closed in the operating area.
- Clean the air filter monthly to ensure efficient airflow.
- Empty the water bucket regularly to avoid automatic shut-off and restarting cycles.
- Choose an ENERGY STAR certified model when buying new.
- Insulate and seal leaks in damp areas to reduce moisture entry (CDC).
By following these tips, you’ll not only save money but also ensure your home maintains a comfortable and healthy humidity level. It’s about working smarter, not harder, with your dehumidifier.
Conclusion
Understanding your dehumidifier’s operating cost doesn’t have to be a mystery. We’ve shown you that the average monthly cost is often between $30 and $60, but your specific bill depends on just a few key factors. By knowing your unit’s wattage, how long it runs, and your electricity rate, you can pinpoint your expenses.
More importantly, you now have actionable steps to save money. From setting your humidistat correctly to cleaning filters and choosing ENERGY STAR models, small changes add up. Take control of your home’s humidity and your electric bill today!
Frequently Asked Questions
Does running a dehumidifier make your electric bill very high?
It can, especially if you run a large unit continuously. Our research found costs typically range from $30-$60 per month. However, high-usage scenarios or expensive electricity rates can push that bill higher.
Is it cheaper to run a dehumidifier all the time or on a timer?
It’s generally cheaper to run it on a timer or with a humidistat. This way, the unit only operates when humidity levels are too high, saving energy compared to constant running.
How much electricity does a 50-pint dehumidifier use per hour?
A typical 50-pint dehumidifier uses around 500 watts. This translates to 0.5 kilowatt-hours (kWh) per hour. You can use this number with your electricity rate to calculate hourly cost.
Will a smaller dehumidifier always cost less to run than a larger one?
Not always. While smaller units use less power, if a small unit has to run constantly to manage a large, damp space, it might cost more than a properly sized, efficient larger unit that runs less often.
What is the ideal humidity setting to save money with a dehumidifier?
Setting your humidistat between 45% and 50% is often ideal. This range balances comfort, health, and energy efficiency, preventing your unit from working harder than necessary.
