Fan Electricity Calculator
Check how much your ceiling fan costs you per month
What is Fan Electricity Consumption Calculator?
Ceiling fans are the most common appliance in every Indian household. Whether it's summer, monsoon, or even mild winter, fans run almost 24x7. But have you ever wondered how much electricity your fan consumes? Does it add significantly to your electricity bill?
The Fan Electricity Consumption Calculator helps you find the answer. By simply entering the wattage of your fan (standard or BLDC) and your daily usage, you can calculate exactly how many units it consumes and what it costs you in Rupees.
This tool is especially useful if you are planning to replace your old fans with new BLDC fans. It shows you the clear cost difference and how much money you can save every year by making the switch.
How Much Electricity Does a Ceiling Fan Consume?
The power consumption of a fan depends largely on its motor type and age. Here is a simple breakdown:
- Normal Ceiling Fan (Old/Standard): These fans use an induction motor and typically consume 70 to 80 watts at full speed. Older fans can consume even more, up to 90 watts.
- BLDC Fan (Brushless DC): These are the modern energy-efficient fans. They consume only 25 to 35 watts at full speed. That is less than half of a normal fan!
Speed also matters. A fan running at speed 1 or 2 consumes less power (approx 15-40%), while speed 5 consumes maximum power. However, with normal regulators, the power saved at lower speeds is often wasted as heat in the regulator itself. BLDC fans save power efficiently at all speeds.
BLDC vs Normal Fan: The Cost Difference
Let's compare the electricity cost of a Normal Fan vs a BLDC Fan. We assume the fan runs 16 hours a day (common in Indian summers) and electricity cost is ₹8 per unit.
Daily Consumption: 1.2 Units
Daily Cost: ₹9.6
Yearly Cost: ~₹3,500
Daily Consumption: 0.45 Units
Daily Cost: ₹3.6
Yearly Cost: ~₹1,300
Savings: Just by switching one fan, you save ₹2,200 per year. If you have 3 fans in your house, you save over ₹6,500 annually! This means a new BLDC fan pays for itself in just 1.5 years.
Average Fan Power Consumption Table
| Fan Type | Wattage | Daily Units (12 hrs) | Cost per Month |
|---|---|---|---|
| Normal Fan (Old) | 80 - 90 W | ~ 1.1 Units | ₹ 260 - ₹ 300 |
| Normal Fan (Standard) | 70 - 75 W | ~ 0.9 Units | ₹ 210 - ₹ 230 |
| BLDC Fan (5 Star) | 28 - 35 W | ~ 0.4 Units | ₹ 90 - ₹ 110 |
How to Reduce Fan Electricity Bill?
Fans are essential, but you can still optimize their usage to save money:
The most effective way. Replace your most-used fan (bedroom/living room) with a 5-star rated BLDC fan.
If you have old bulky resistor-type regulators, replace them with step-type electronic regulators. Old regulators waste electricity as heat.
A layer of dust on fan blades adds weight and drag, making the motor work harder and consume more power. Clean your fans once a month.
It sounds simple, but we often leave fans running in empty rooms. Developing a habit of switching off can save significant units.
Frequently Asked Questions (FAQs)
- Does fan speed affect electricity consumption?
Yes. A fan consumes maximum power at top speed (Speed 5). At lower speeds (1-3), the motor consumes less power. However, with old-style regulators, the savings are minimal because the regulator dissipates the unused energy as heat. With modern electronic regulators or BLDC fans, running at lower speeds saves significant electricity.
- What is a BLDC Fan?
BLDC stands for Brushless Direct Current. Unlike normal induction motors, BLDC motors use permanent magnets and electronics to rotate. This makes them highly efficient, consuming only 28-35 watts compared to 75 watts for normal fans. They also create less heat and noise.
- How much bill does a fan generate per month?
A standard ceiling fan (75W) running for 12 hours a day consumes about 27 units per month. At ₹8/unit, this costs around ₹216 per month. A BLDC fan (30W) for the same usage consumes only 11 units, costing around ₹88 per month.
- Is it worth buying a BLDC fan?
Yes. Although BLDC fans are more expensive (approx ₹2500-₹3500) than normal fans (₹1200-₹1500), the electricity savings are huge. You can recover the extra cost in 1-2 years through electricity bill savings, making it a profitable investment in the long run.
- Does a fan consume 1 unit of electricity?
A normal 75-watt fan takes about 13 to 14 hours to consume 1 unit (1 kWh) of electricity. A 30-watt BLDC fan takes roughly 33 hours to consume 1 unit.