Light Bulb Watts to Lumens
Find the lumens an LED needs to replace an old 40–150 W bulb, or the old-bulb equivalent of an LED's lumens, with the energy saved.
Look for an LED with at least
800 lumens
Lumens measure brightness; watts measure power. Pick the lumens you need, then the lowest watts.
ENERGY STAR brightness equivalents
| Old bulb | Minimum lumens |
|---|---|
| 40 W | 450 |
| 60 W | 800 |
| 75 W | 1,100 |
| 100 W | 1,600 |
| 150 W | 2,600 |
Show the work
Minimum for a 60 W bulb
ENERGY STAR table
800 lumens
How it works
ENERGY STAR minimum lumens: 40 W → 450 lm, 60 W → 800, 75 W → 1,100, 100 W → 1,600, 150 W → 2,600; energy saved = 1 − LED watts ÷ old watts
Questions
- How does the light bulb watts to lumens work?
- ENERGY STAR minimum lumens: 40 W → 450 lm, 60 W → 800, 75 W → 1,100, 100 W → 1,600, 150 W → 2,600; energy saved = 1 − LED watts ÷ old watts.
- What do I need to enter?
- I want to, Old incandescent bulb, LED brightness, LED watts. Optional fields can be left blank.
Related tools
- Ring Size ConverterConvert ring sizes between US/Canada, UK/Australia letters, inner diameter and inner circumference (ISO 8653).
- Hat Size ConverterTurn a head measurement into US fitted hat size (in eighths) and metric hat size.
- Coffee to Water Ratio CalculatorFind grams of coffee for your water (or water for your coffee) at the SCA golden ratio or your own brew ratio.
- Baker's Percentage CalculatorTurn a dough's weights into baker's percentages and hydration — or percentages back into grams for any flour amount.
- Turkey Cooking Time CalculatorUSDA roasting time for a turkey by weight at 325 °F, stuffed or not, plus the safe internal temperature and thawing time.
- Reading Time CalculatorEstimate how long a text takes to read silently or aloud, from a word count or pasted text.
Want this on your site? Embed the light bulb watts to lumens.