No Results
No results found for your search. Please try another term.
How to Convert from Watt/sq. cm (at 555 nm) to Foot-candle [ft*c, fc]
Learn how to convert illumination units from watt per square centimeter at 555 nm to foot-candle, a common lighting measure in North America. Understand the unit definitions, use cases, and conversion details.
Please check your input. It must be a valid numeric value.
Watt/sq. cm (at 555 nm) to Foot-candle [ft*c, fc] Conversion Table
| Watt/sq. cm (at 555 nm) | Foot-candle [ft*c, fc] |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Watt/sq. cm (at 555 nm) | Foot-candle [ft*c, fc] |
|---|
Explore More Illumination Units Converter
- How to convert from lux [lx] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to lux [lx]?
- How to convert from meter-candle [m*c] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to meter-candle [m*c]?
- How to convert from centimeter-candle [cm*c] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to centimeter-candle [cm*c]?
- How to convert from foot-candle [ft*c, fc] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to foot-candle [ft*c, fc]?
- How to convert from flame to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to flame?
- How to convert from phot [ph] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to phot [ph]?
- How to convert from nox to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to nox?
- How to convert from candela steradian/sq. meter to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to candela steradian/sq. meter?
- How to convert from lumen/square meter [lm/m^2] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to lumen/square meter [lm/m^2]?
- How to convert from lumen/square centimeter to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to lumen/square centimeter?
- How to convert from lumen/square foot [lm/ft^2] to watt/sq. cm (at 555 nm)?
- How to convert from watt/sq. cm (at 555 nm) to lumen/square foot [lm/ft^2]?
What Is This Tool?
This converter changes illumination measurements from watt per square centimeter at 555 nm, a radiometric unit focused on a specific light wavelength, to foot-candle, a photometric unit widely used in North American lighting. It helps translate monochromatic irradiance into practical illuminance values.
How to Use This Tool?
- Enter the value in watt/sq. cm (at 555 nm) that you want to convert
- Select 'watt/sq. cm (at 555 nm)' as the input unit
- Choose 'foot-candle [ft*c, fc]' as the output unit
- Click the convert button to get the equivalent illuminance in foot-candles
Key Features
- Converts watt/sq. cm (at 555 nm) units to foot-candle with a precise conversion factor
- Supports lighting design, photometry calibration, and vision science applications
- Browser-based and easy to use for professionals and hobbyists
- Facilitates interpretation of radiometric data in photometric terms
- Includes examples for quick reference
Examples
- 0.001 Watt/sq. cm (at 555 nm) equals approximately 634.53 foot-candle
- 0.01 Watt/sq. cm (at 555 nm) corresponds to about 6345.28 foot-candle
Common Use Cases
- Calibrating light sources and photometers for lighting application standards
- Translating monochromatic light measurements in vision science and psychophysics experiments
- Setting exposure limits for green optical sources in photobiological testing
- Measuring and managing lighting levels in offices, retail, and building compliance
- Adjusting lighting exposure in photography, film, and stage environments
- Controlling recommended illuminance in museums, galleries, and horticultural settings
Tips & Best Practices
- Ensure measurements use the 555 nm wavelength to apply this conversion correctly
- Cross-check units when working between foot-candle and SI-based units like lux
- Use the tool to simplify complex radiometric to photometric conversions
- Consider regional unit preferences in lighting design projects
- Validate low-level measurements carefully due to high conversion factor sensitivity
Limitations
- Conversion is accurate only at the 555 nm wavelength specific to photopic vision peak
- Foot-candle is a non-SI unit and differs regionally, requiring caution in international contexts
- High conversion factor means small input errors can produce large output variations
Frequently Asked Questions
- Why is the wavelength 555 nm important in this conversion?
- The wavelength 555 nm corresponds to the peak of human photopic sensitivity, making it the reference for converting radiometric irradiance to photometric illuminance.
- What is a foot-candle and where is it commonly used?
- A foot-candle is a non-SI illuminance unit representing one lumen per square foot, commonly used in North American lighting practices such as offices, retail, and building codes.
- Can I use this converter for wavelengths other than 555 nm?
- No, this conversion only applies at 555 nm and should not be generalized to other wavelengths.
Key Terminology
- Watt/sq. cm (at 555 nm)
- A unit measuring radiant power per square centimeter at wavelength 555 nm, related to photopic luminous efficiency.
- Foot-candle [ft*c, fc]
- A non-SI unit of illuminance equating to one lumen per square foot, used mainly in North American lighting.
- Photopic luminous-efficiency function
- A standard describing the eye's sensitivity to different wavelengths under bright light, peaking at 555 nm.