LED Bulb Savings Table: Yearly saving per bulb by Old bulb wattage
Reference table of yearly saving per bulb for LED Bulb Savings across a range of old bulb wattage values — exact, engine-computed figures you can read off at a glance.
LED Bulb Savings Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Yearly saving per bulb
₹730.00
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the LED Bulb Savings Calculator
The LED Bulb Savings Calculator works out your yearly saving per bulb in an instant. Enter old bulb wattage, led wattage and hours used per day and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the old bulb wattage.
- Enter the led wattage.
- Enter the hours used per day.
- Enter the days per year.
- Enter the electricity rate.
- Read off your yearly saving per bulb — the calculator updates automatically, with no button to press.
Formula
The LED Bulb Savings Calculator uses the formula:
Yearly saving per bulb = (Old bulb wattage - LED wattage) × Hours used per day × Days per year ÷ 1000 × Electricity rate
Worked example
For example, with old bulb wattage of 60 W, led wattage of 10 W, hours used per day of 5 and days per year of 365 and the other inputs, the yearly saving per bulb is ₹730.00.
| Old bulb wattage | 60 W |
|---|---|
| LED wattage | 10 W |
| Hours used per day | 5 |
| Days per year | 365 |
| Electricity rate | per kWh8 |
| Yearly saving per bulb | ₹730.00 |
|---|
Results are estimates for educational use, not professional advice.
Frequently asked questions
Multiply the wattage saved by hours, days and rate. Swapping a 60 W bulb for a 10 W LED used 5 hours a day saves about 730 a year.
Yes. A 10 W LED can match a 60 W incandescent, since LEDs produce far more light per watt.
Yes. LEDs often last 15,000 to 25,000 hours, cutting replacement costs on top of energy savings.
Run it per bulb and multiply by the number of bulbs you replace for total household savings.
The LED Bulb Savings Calculator uses the formula: Yearly saving per bulb = (Old bulb wattage - LED wattage) × Hours used per day × Days per year ÷ 1000 × Electricity rate. For example, with old bulb wattage of 60 W, led wattage of 10 W, hours used per day of 5 and days per year of 365 and the other inputs, the yearly saving per bulb is ₹730.00.
Enter the old bulb wattage. Enter the led wattage. Enter the hours used per day. Enter the days per year. Enter the electricity rate. Read off your yearly saving per bulb — the calculator updates automatically, with no button to press.
Related guides
How to Calculate LED Bulb Savings: Formula, Steps & Examples
Learn how to calculate LED Bulb Savings — the formula explained step by step, with worked examples and a free calculator to check your answer.