Convert Candlepower to Watt using the exact conversion factor. This page provides the formula, reference values, and practical context for engineering, technical calculations, and professional measurement use.
Candlepower (International) = Watt per Steradian at 555nm (W/sr) × 0.001436
To convert Candlepower (International) to Watt per Steradian at 555nm (W/sr), multiply the value by 0.001436. The conversion factor is based on standardized unit definitions and is suitable for engineering analysis, system design, and professional measurement workflows.
Convert 1 cp to W_sr.
So, 1 cp = 0.001436 W_sr.
One Candlepower (International) equals 0.001436 Watt per Steradian at 555nm (W/sr)
Units of luminous intensity are standardized measurements used to quantify directional light output from sources such as lamps and LEDs.
One Watt per Steradian at 555nm (W/sr) equals 0.001436 Candlepower (International)
Units of luminous intensity are standardized measurements used to quantify directional light output from sources such as lamps and LEDs.
How many Watt per Steradian at 555nm (W/sr) are in 1 Candlepower (International)?
1 Candlepower (International) = 0.001436 Watt per Steradian at 555nm (W/sr).
How many Watt per Steradian at 555nm (W/sr) are in one Candlepower (International)?
One Candlepower (International) equals 0.001436 Watt per Steradian at 555nm (W/sr).
How many W_sr are in one cp?
One cp equals 0.001436 W_sr.
What is the formula for converting Candlepower (International) to Watt per Steradian at 555nm (W/sr)?
Multiply the Candlepower (International) value by 0.001436.
Can I reverse the conversion?
Yes. 1 Watt per Steradian at 555nm (W/sr) = 696.228338 Candlepowers (International).
Is this Candlepower (International) to Watt per Steradian at 555nm (W/sr) conversion accurate for engineering use?
Yes. The conversion uses a standardized conversion factor suitable for engineering calculations, technical analysis, and professional reference.
Can this conversion be used for scientific or technical calculations?
Yes. This conversion is appropriate for scientific analysis, engineering calculations, simulations, and technical documentation where unit consistency is required.
By applying the conversion factor shown above, you can convert Candlepower (International) to Watt per Steradian at 555nm (W/sr) for lighting design, photometric testing, and compliance evaluation.
1 cp = 0.981 cd
1 Candlepower (International) = 0.981 Candela (cd)
One Candlepower (International) equals 0.981 Candela (cd)
1 cp = 981 mcd
1 Candlepower (International) = 981 Millicandelas (mcd)
One Candlepower (International) equals 981 Millicandelas (mcd)
1 cp = 9.81 × 10⁵ ucd
1 Candlepower (International) = 9.81 × 10⁵ Microcandelas (µcd)
One Candlepower (International) equals 9.81 × 10⁵ Microcandelas (µcd)
1 cp = 0.00098 kcd
1 Candlepower (International) = 0.00098 Kilocandela (kcd)
One Candlepower (International) equals 0.00098 Kilocandela (kcd)
1 cp = 0.1007 carcel
1 Candlepower (International) = 0.1007 Carcel
One Candlepower (International) equals 0.1007 Carcel
1 cp = 0.981 bougie
1 Candlepower (International) = 0.981 Bougie Decimal
One Candlepower (International) equals 0.981 Bougie Decimal
1 cp = 1.08638 cp_h
1 Candlepower (International) = 1.08638 Candlepowers (Hefner)
One Candlepower (International) equals 1.08638 Candlepowers (Hefner)
1 cp = 0.981 lm_sr
1 Candlepower (International) = 0.981 Lumen per Steradian (lm/sr)
One Candlepower (International) equals 0.981 Lumen per Steradian (lm/sr)
1 cp = 0.00144 W_sr
1 Candlepower (International) = 0.00144 Watt per Steradian at 555nm (W/sr)
One Candlepower (International) equals 0.00144 Watt per Steradian at 555nm (W/sr)