Illumination Converter
Convert between any illumination units instantly. No registration, no data stored.
How Illumination Conversion Works
All illumination conversions use lux [lx] as the base unit:
Example: 1 lx × 10.7639 = 10.7639 foot-candle
Actual Calculation
Why Trust This Converter?
Conversion Formula
Accuracy & Standards
Unit Relationship Diagram
Illumination Unit Comparison
| Unit | Symbol | Equals (in lx) | Used In |
|---|---|---|---|
| Lux | lx | 1 | 🌍 Worldwide |
| Foot-candle | fc | 10.7639 | 🇺🇸 USA |
| Meter-candle | m*c | 1 | 🌍 Worldwide |
| Phot | ph | 10000 | 🔬 Science |
| Nox | nox | 0.001 | 🔬 Science |
| Flame | flame | 43.0556 | 🌍 Historical |
| lm/ft² | lm/ft² | 10.7639 | 🇺🇸 USA |
| lm/m² | lm/m² | 1 | 🌍 Worldwide |
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How This Converter Works
This illumination converter uses lux [lx] as the base unit for all conversions.
Step 1: Convert input value to lux using the "From" unit factor
Step 2: Convert lux to the "To" unit using the target unit factor
Real Examples
Limitations
- • This tool is for informational purposes only
- • Results should not be used for legal or certified measurements
- • Always verify critical calculations with official sources
Trust & Privacy
All calculations are performed locally in your browser. No personal information is stored or shared.
References
- BIPM SI Brochure – Photometric Units
- NIST Special Publication 811 – Guide to SI Units
- ISO 80000-7 – Light and Radiation
References were selected from recognized standards organizations and are reviewed periodically for accuracy.
Editorial Process
The CalculatorKits editorial team reviews this tool periodically.
- Conversion formula accuracy
- Unit definitions and standards
- User guidance and clarity
- Educational content
Last reviewed: July 2026
Frequently Asked Questions
Enter a value, select the "From" and "To" units, and the result appears instantly.
We support lux, foot-candle, phot, nox, flame, meter-candle, lm/m², lm/ft², and more.
Yes, it uses standard SI conversion factors and is accurate for all supported units.
Select "lux" as From and "foot-candle" as To, then enter your value. The formula is fc = lx × 10.7639.
Yes, your recent conversions are saved locally in your browser.
📍 Illumination Converter — For educational and informational use only
Illumination Converter
Convert illumination values accurately between different units in seconds.
This Illumination Converter helps you measure and compare light levels on surfaces without manual calculations or complex formulas.
What Is an Illumination Converter?
An Illumination Converter is an online tool used to convert illumination values from one unit to another. Illumination describes how much light falls onto a surface and how well that surface is lit. The most common unit of illumination is lux (lx), but other units are also used depending on the application, industry, or measurement system.
Manually converting illumination units often requires formulas and reference charts, which increases the chance of mistakes. This tool removes that complexity by performing conversions instantly and accurately. You simply enter a value, choose the original unit, select the target unit, and receive the converted result.
The output is useful for lighting design, workplace safety assessments, photography planning, and academic study. Because the Illumination Converter works entirely in the browser, it is accessible on any device without downloads or setup.
Why Use This Illumination Converter?
Accurate illumination measurements are essential for visibility, comfort, and safety. Manual conversion methods can be slow and unreliable, especially when working with multiple units.
Using this Illumination Converter offers several benefits:
- Speed: Instant conversions without calculations
- Accuracy: Standard illumination conversion logic
- Convenience: No spreadsheets or reference tables needed
- Browser-based: Works on desktop, tablet, and mobile
Compared to manual methods, this online illumination calculator saves time and reduces errors. It is especially useful when working alongside brightness and light source measurements.
How to Use the Illumination Converter
The Illumination Converter follows a simple, user-friendly process that matches the on-screen interface.
- Enter the illumination value in the input field
- Select the source unit, such as lux (lx)
- Choose the target illumination unit from the dropdown
- Click the Convert button
- View the converted value instantly
You can repeat conversions as needed. For complete lighting analysis, this tool works well with a Luminous Intensity Converter when comparing light source output and surface illumination together.
Key Features
- Converts standard illumination units accurately
- Supports lux and related light level measurements
- Fast processing with immediate results
- Fully browser-based with no installation
- No signup or personal data required
- Clean and easy-to-understand interface
Who Can Use This Tool?
The Illumination Converter is useful for anyone who works with light level measurements.
- Students: Learn illumination concepts in physics and lighting studies
- Lighting designers: Convert illumination units for planning and analysis
- Engineers: Use accurate conversions in technical documentation
- Photographers: Evaluate lighting conditions for shoots
- Facility managers: Check lighting levels for safety and compliance
Whether for learning or professional use, this tool helps ensure consistent and accurate illumination values.
Pros and Cons
Pros
- Simple and fast to use
- Accurate illumination unit conversion
- Works across all modern devices
- No data tracking or storage
Cons
- Requires an internet connection
- Focused on conversion only, not simulation
Safety, Privacy, and Accuracy
This Illumination Converter runs entirely in your browser. All calculations are processed locally, and no input data is stored, shared, or uploaded. There is no file handling and no account system involved.
Conversions follow standard illumination formulas. Results are intended for informational and technical purposes only. For regulated environments or safety-critical applications, values should be verified using calibrated lighting instruments.
The tool does not provide professional lighting advice or guarantees.
Related Tools
- Luminance Converter
Convert luminance units to measure surface brightness and display light output. - Luminous Intensity Converter
Convert luminous intensity units to compare light source strength accurately. - Digital Image Resolution Converter
Helps convert resolution values to better understand display clarity and pixel density. - Frequency Wavelength Converter
Useful for converting frequency and wavelength values in optics and physics.
Frequently Asked Questions
What is illumination?
Illumination measures how much light falls onto a surface. It is commonly expressed in lux.
Is this Illumination Converter free to use?
Yes, the tool is completely free and does not require registration.
Does it work on mobile devices?
Yes, it works smoothly on smartphones, tablets, and desktops.
Are my inputs saved?
No. All calculations happen locally in your browser, and no data is stored.
Can I use this tool for professional work?
The tool is suitable for general and technical use, but critical measurements should always be verified with certified equipment.
Conclusion
The Illumination Converter provides a fast, accurate, and easy way to convert light level measurements between different units. By eliminating manual calculations and working entirely in the browser, it saves time while maintaining precision.
Whether you are studying lighting, designing illuminated spaces, or checking light levels for safety, this tool delivers reliable results with minimal effort. Use it alongside related converters to manage all your lighting calculations in one place.