Luminous Flux Converter

Convert between luminous flux and equivalent power

Amount

From

To

0.0125 W

rate：1 lm = 0.0125 W

Decimals 6 Thousands separator Scientific notation

Results in all units

1 lm

Unit	Symbol	Value
Luminous Flux
Lumens	lm	1
Equivalent Power (Approx)
Watts (LED)	W	0.0125
Watts (CFL)	W	0.016667
Watts (Incandescent)	W	0.066667

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4 Watts (Incandescent) → 60 Lumens 💡 Luminous Flux 38 Watts (Incandescent) → 9.5 Watts (CFL) 💡 Luminous Flux 44 Watts (Incandescent) → 11 Watts (CFL) 💡 Luminous Flux 50 Watts (Incandescent) → 750 Lumens 💡 Luminous Flux 89 Lumens → 1.1125 Watts (LED) 💡 Luminous Flux 43 Watts (CFL) → 2,580 Lumens 💡 Luminous Flux 70 Lumens → 0.875 Watts (LED) 💡 Luminous Flux 94 Watts (Incandescent) → 1,410 Lumens 💡 Luminous Flux 64 Lumens → 4.2667 Watts (Incandescent) 💡 Luminous Flux 81 Watts (LED) → 6,480 Lumens 💡 Luminous Flux

Common Scenarios

When purchasing LED bulbs, flashlights, or projectors, lumens are the key parameter. This tool helps you convert traditional incandescent watts to equivalent LED lumens and watts.

History & Background

The term "lumen" comes from Latin for light. In the mid-20th century, photometry defined the lumen as the luminous flux emitted by a point source of 1 candela over a solid angle of 1 steradian.

Conversion Details

Luminous flux (lm) measures the total visible light emitted. Watt (W) is electrical power. This tool provides an approximate estimate based on standard efficiencies.

When buying bulbs, lumens determine brightness, not just watts.