Candela per Square Inch to Watt per Square Centimeter Steradian (at 555 nm) Conversion

Convert between Candela per Square Inch and Watt per Square Centimeter Steradian (at 555 nm) quickly and accurately.

cd/in²
W/(cm²·sr)

How to Convert Candela per Square Inch to Watt per Square Centimeter Steradian (at 555 nm)

Conversion Formula

1 cd/in² = 0 W/(cm²·sr)
1 W/(cm²·sr) = 4406.443 cd/in²

Example

Convert 15 cd/in² to W/(cm²·sr):

15 cd/in² = 15 × 0 W/(cm²·sr) = 0.003 W/(cm²·sr)

Unit Information

Learn about the luminance units you're converting between

Candela per Square Inch

cd/in²

Definition

The Candela per Square Inch is an imperial unit of luminance, representing the luminous intensity per unit area using the square inch as the area unit. It is used for measuring very bright light sources and small-area displays.

History/Origin

This unit was developed for applications requiring precise measurement of small, bright light sources where square inches provide a more appropriate area reference. It is particularly useful in electronics and display technology where component sizes are measured in inches.

Current Use

Commonly used in electronics manufacturing, small display technology, and precision lighting applications. Essential for measuring LED arrays, small screens, and compact light sources where square inch measurements are standard.

Multiplier

1550.003

Offset

0

Watt per Square Centimeter Steradian (at 555 nm)

W/(cm²·sr)

Definition

The Watt per Square Centimeter Steradian at 555 nm is a radiometric unit of luminance that measures radiant power per unit area and solid angle at the peak sensitivity wavelength of the human eye. It is used for precise photometric calculations and laser applications.

History/Origin

This unit was developed for applications requiring precise conversion between radiometric and photometric quantities. The 555 nm wavelength corresponds to the peak sensitivity of the human eye, making it ideal for accurate photometric measurements and laser safety calculations.

Current Use

Used in laser safety, precision photometry, and applications requiring exact conversion between radiometric and photometric units. Essential for laser power measurements, optical system design, and safety calculations where precise luminance values are critical.

Multiplier

6830000

Offset

0

Candela per Square Inch to Watt per Square Centimeter Steradian (at 555 nm) Conversion Table

Candela per Square Inch [cd/in²] Watt per Square Centimeter Steradian (at 555 nm) [W/(cm²·sr)]
1 cd/in² 0.000227 W/(cm²·sr)
10 cd/in² 0.002269 W/(cm²·sr)
25 cd/in² 0.005674 W/(cm²·sr)
50 cd/in² 0.011347 W/(cm²·sr)
100 cd/in² 0.022694 W/(cm²·sr)
0 cd/in² 0E+0 W/(cm²·sr)
-10 cd/in² -0.002269 W/(cm²·sr)
-40 cd/in² -0.009078 W/(cm²·sr)