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How to Convert from Decimal Candle to Candle (International) [c]
Learn how to convert luminous intensity from the historical unit decimal candle to the international candle unit, both used before the adoption of the modern candela.
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Decimal candle to Candle (international) [c] Conversion Table
| Decimal candle | Candle (international) [c] |
|---|
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.
| Decimal candle | Candle (international) [c] |
|---|
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What Is This Tool?
This converter allows you to convert luminous intensity values between the decimal candle and the candle (international) units. Both units are historical measures used in photometry before being replaced by the SI candela. The tool helps interpret and compare obsolete lighting standards and data.
How to Use This Tool?
- Enter the luminous intensity value in decimal candles
- Select decimal candle as the input unit
- Choose candle (international) as the output unit
- Click convert to see the equivalent value
Key Features
- Converts between decimal candle and candle (international) units exactly
- Supports understanding of historical photometric data
- Useful for researchers and engineers working with legacy lighting standards
- Browser-based and easy to use with a simple interface
Examples
- 5 Decimal candles = 5 Candle (international) [c]
- 0.75 Decimal candle = 0.75 Candle (international) [c]
Common Use Cases
- Interpreting historical luminous intensity measurements
- Comparing brightness values from 19th-century lamps and indicators
- Restoring or calibrating antique photometric instruments
- Translating old lighting standards into current units for engineering
Tips & Best Practices
- Use this conversion primarily for historical or academic research
- Consult original light source documentation when available
- Verify unit definitions when working with legacy data
- Be cautious applying these units in modern photometric calculations
Limitations
- Both units are outdated and replaced by the modern candela (cd)
- They may not provide precise intensity values by modern measurement standards
- Relevance is largely limited to historical or archival contexts
- Modern applications require conversion to SI units for accuracy
Frequently Asked Questions
- What is a decimal candle?
- A decimal candle is a historical unit of luminous intensity defined by the light from a standardized candle under specified conditions, used mainly in 19th-century photometry.
- How does the candle (international) differ from the decimal candle?
- The candle (international) is another obsolete photometric unit representing the brightness of a standard lamp used prior to the SI candela; it is equivalent to the decimal candle.
- Why convert between these obsolete units if they are outdated?
- Conversion helps interpret historical lighting data and standards, enabling researchers and engineers to reconcile legacy measurements with modern units.
Key Terminology
- Decimal Candle
- A 19th-century unit of luminous intensity based on the light from a standardized candle under specific conditions.
- Candle (International) [c]
- An obsolete photometric unit that represented the luminous intensity of a standard reference lamp used before the SI candela.
- Candela
- The modern SI unit of luminous intensity that has replaced both decimal candle and candle (international).