Radon Fan Power Calculator
Electrical operating cost of a sub-slab radon mitigation fan.
Enter your values
Enter the fan power draw in W.
Enter the electricity rate in $/kWh.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Annual energy use
- 745 kWh
- Annual operating cost
- $97
- Monthly cost
- $8.07
Quick answer
Annual radon fan operating cost equals its wattage times continuous hours times the electricity rate.
Cost = W/1000 x 8760 x rate
At a glance
| What it does | Electrical operating cost of a sub-slab radon mitigation fan. |
|---|---|
| Category | HVAC & Airflow |
| Inputs needed | Fan power draw, Electricity rate |
| Main output | Annual energy use |
| Formula | Cost = W/1000 x 8760 x rate |
| Cost | Free — no sign-up, no download |
How to use the Radon Fan Power Calculator
- 1Enter the radon fan's power draw in watts from its nameplate.
- 2Enter your electricity rate.
- 3Radon fans run continuously (8,760 hr/yr), so read the resulting annual and monthly cost.
Inputs explained
- Fan power draw(W)
- Enter the fan power draw in W.
- Electricity rate($/kWh)
- Enter the electricity rate in $/kWh.
Worked example
Using the values the calculator loads with:
Inputs
- Fan power draw85 W
- Electricity rate0.13 $/kWh
Results
- Annual energy use745 kWh
- Annual operating cost$97
- Monthly cost$8.07
Frequently asked questions
Do all radon fans use similar power?
Typical residential radon fans draw 40-160 watts depending on suction capacity.
Can I turn the fan off to save money?
No — radon mitigation systems must run continuously to keep radon levels reduced.
What do I need to enter into the Radon Fan Power Calculator?
Just 2 values: fan power draw, electricity rate. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Radon Fan Power Calculator work out the answer?
Annual radon fan operating cost equals its wattage times continuous hours times the electricity rate. It applies the formula Cost = W/1000 x 8760 x rate and shows the working so you can check each step by hand.
Is the Radon Fan Power Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.