Candle (UK) to Hefner Candle Conversion

Convert between Candle (UK) and Hefner Candle quickly and accurately.

From Candle (UK)

c (UK)

To Hefner Candle

hefner candle

How to Convert Candle (UK) to Hefner Candle

Conversion Formula

1 c (UK) = 1.157 hefner candle

1 hefner candle = 0.864 c (UK)

Example

Convert 15 c (UK) to hefner candle:

15 c (UK) = 15 × 1.157 hefner candle = 17.361 hefner candle

Unit Information

Learn about the luminous intensity units you're converting between

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Primarily of historical interest, though may still be encountered in older British technical specifications or historical documents.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

Hefner Candle

hefner candle

Definition

The Hefner Candle is a unit of luminous intensity based on the light output of a Hefner lamp burning amyl acetate. It was developed as a standardized reference for luminous intensity measurements and was widely used in German-speaking countries before the adoption of international standards.

History/Origin

Named after Friedrich von Hefner-Alteneck, who developed this standard in 1884. It was based on the light output of a specific lamp burning amyl acetate and provided a reproducible standard for photometric measurements in Germany and other German-speaking regions.

Current Use

Primarily of historical interest, though may still be referenced in older German technical specifications or photometric literature. It has been largely replaced by the international candle standard for modern applications and scientific measurements.

Multiplier

0.9

Offset