How Much Does a LED Light Bulb (10W) Cost to Run?
A led light bulb (10w) costs approximately $6/year to run at $0.19/kWh. That is $0.46/month or $0.002/hour.
💰 LED Light Bulb (10W) Running Cost Calculator
Based on 10W rated power. Actual varies by model and usage.
LED Light Bulb (10W) Cost at Different Rates
| Rate | Monthly | Annual |
|---|---|---|
| $0.08 | $0.17 | $2 |
| $0.10 | $0.25 | $3 |
| $0.12 | $0.33 | $4 |
| $0.16 | $0.42 | $5 |
| $0.20 | $0.50 | $6 |
| $0.25 | $0.58 | $7 |
| $0.30 | $0.75 | $9 |
| $0.35 | $0.83 | $10 |
Electricity cost to run a LED Light Bulb (10W)
A typical LED Light Bulb (10W) draws 10 watts when running and operates roughly 8 hours per day on average. That works out to 0.08 kWh per day, 2 kWh per month, and approximately 29 kWh per year.
At the US-average residential rate of 18.8 cents per kWh (EIA April 2026), the LED Light Bulb (10W) costs roughly $5 per year to operate. In cheap-power states like North Dakota or Idaho at about 12.5 cents, it is closer to $4. In expensive states like Massachusetts or New York at about 29.5 cents, it climbs to $9. In Hawaii at 46.6 cents per kWh, the annual cost is approximately $14.
Annual cost by state rate
| Rate scenario | Rate (c/kWh) | Annual kWh | Annual cost |
|---|---|---|---|
| North Dakota, Idaho (cheapest) | 12.5 | 29 | $4 |
| Texas, Florida | 16.0 | 29 | $5 |
| US national average | 18.8 | 29 | $5 |
| Massachusetts, New York | 29.5 | 29 | $9 |
| California | 35.3 | 29 | $10 |
| Hawaii (most expensive) | 46.6 | 29 | $14 |
Frequently asked questions
How much electricity does a LED Light Bulb (10W) use?
A typical LED Light Bulb (10W) uses about 0.08 kWh per day running 8 hours at 10W. That works out to roughly 2 kWh per month and 29 kWh per year. Your actual use will vary with how often you run it.
How much does it cost to run a LED Light Bulb (10W) per month?
At US-average electricity rates (18.8 cents/kWh), running the LED Light Bulb (10W) costs about $0.38 per month. In low-rate states it can be as little as $0.25; in high-rate states like California, expect closer to $0.71 per month.
What is the annual cost of running a LED Light Bulb (10W)?
Annual operating cost at US-average rates: approximately $5 per year. The range across US states is roughly $3 (cheapest) to $14 (Hawaii).
How can I reduce the cost of my LED Light Bulb (10W)?
Reduce daily runtime, every hour cut saves about $1 per year. Check whether your utility offers a time-of-use plan that aligns with this appliance use pattern.
What watt rating should I expect for a LED Light Bulb (10W)?
Typical running wattage for a LED Light Bulb (10W) is around 10 watts. Specific models vary; check the nameplate label on your unit for exact figures. Common variation is plus-or-minus 20 percent of the typical value.
LED Light Bulb (10W) Energy Usage Explained
A led light bulb (10w) consumes 10W. At 8 hours/day for 365 days/year, that is 29 kWh annually, about 0.3% of average US household usage (10,500 kWh).
How to Calculate Running Cost
Cost = (Watts ÷ 1000) × Hours × Rate
For your led light bulb (10w): (10W ÷ 1000) × 8 hrs × $0.19/kWh = $0.02/day.
Tips to Reduce Costs
Use time-of-use electricity plans for off-peak rates ($0.05–$0.10/kWh overnight). Upgrade to Energy Star certified models. Use smart plugs or timers. Check rates in your state with our Electricity Cost Calculator.
Disclaimer: Estimates based on rated wattage. Actual consumption varies by model, age, and usage patterns.