Candle (International) to Candle (UK) Conversion
Convert between Candle (International) and Candle (UK) quickly and accurately.
How to Convert Candle (International) to Candle (UK)
Conversion Formula
Example
Convert 15 c to c (UK):
Unit Information
Learn about the luminous intensity units you're converting between
Candle (International)
c
Definition
The Candle (International) is the SI base unit of luminous intensity, defined as the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency 540×10¹² hertz and has a radiant intensity in that direction of 1/683 watt per steradian.
History/Origin
The international candle was established in 1948 as part of the International System of Units (SI). It replaced earlier candle standards and provides a precise, reproducible definition based on fundamental physical constants, ensuring consistency in light measurement worldwide.
Current Use
Widely used as the standard unit for measuring luminous intensity in scientific research, lighting design, and photometric applications. It is essential for calibrating light sources, designing lighting systems, and ensuring accurate light measurements in various industries.
Multiplier
1
Offset
0
Candle (UK)
c (UK)
Definition
The Candle (UK) is a historical unit of luminous intensity used in the United Kingdom, equivalent to approximately 1.0417 international candles. It was based on the light output of a specific type of candle used in British photometric standards before metrication.
History/Origin
Established in the United Kingdom as part of their imperial measurement system before the adoption of international standards. It was based on the light output of specific British-made candles and was used for photometric measurements in the UK and Commonwealth countries.
Current Use
Primarily of historical interest, though may still be encountered in older British technical specifications or historical documents. It has been largely replaced by the international candle standard for modern applications and scientific measurements.
Multiplier
1.042
Offset
0
Candle (International) to Candle (UK) Conversion Table
| Candle (International) [c] | Candle (UK) [c (UK)] |
|---|---|
| 1 c | 0.96 c (UK) |
| 10 c | 9.6 c (UK) |
| 25 c | 24 c (UK) |
| 50 c | 48 c (UK) |
| 100 c | 96 c (UK) |
| 0 c | 0E+0 c (UK) |
| -10 c | -9.6 c (UK) |
| -40 c | -38.4 c (UK) |
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