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Celsius to Romer Converter

See below how to convert any value in Celsius to RomerDegrees , as wel as, the Celsius to degrees Romer formula or equation.

To use this temperature calculator, simply type the Celsius value in the box at left and you're done. The result will be shown in the box at right.

Degrees Celsius to Degrees Romer

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Full Temperature Calculator

To convert a Celsius value to the corresponding value in Romer, just use the formula:

[°Ro] = [°C] × 21⁄40 + 7.5

What is Celsius Scale

The Celsius scale was invented in 1742 by the Swedish astronomer Anders Celsius. It was initially defined by the freezing point of water and later changed its definition as being the melting point of ice. 100° C was defined as the boiling point of water. The Celsius scale is a derived scale once its defined in relation to the Kelvin temperature scale. 0 (zero) °C is exactly equivalent to 273.15 K, with a temperature difference of 1 °C equivalent to a difference of 1 K, meaning the unit size in each scale is the same.
The Celsius temperature scale is sometimes referred to as the 'Centigrade' scale. Centigrade means divided into 100 degrees. The following formulas can be used to convert a temperature from Celsius (°C) value to other temperature scales:


Celsius to Delisle[°De] = (100 − [°C]) × 3⁄2
Celsius to Fahrenheit[°F] = [°C] × 9⁄5 + 32
Celsius to Kelvin[K] = [°C] + 273.15
Celsius to Newton[°N] = [°C] × 33⁄100
Celsius to Rankine[°R] = ([°C] + 273.15) × 9⁄5
Celsius to Reaumur[°Ré] = [°C] × 4⁄5
Celsius to Romer[°Ro] = [°C] × 21⁄40 + 7.5

What is Romer Scale

Rømer is credited with inventing the mercury thermometer. He divide his temperature scale between freezing water and boiling water into 60 (sixty) degrees. Daniel Gabriel Fahrenheit developed his thermometers and the Fahrenheit scale. Charactheristics: The boiling point of water is defined at 60 degrees; The freezing point of water is defined at 7.5 degrees above the zero of the scale; A Rømer degree is 100/52.5 of a Kelvin or Celsius degree.

The following formulas can be used to convert a temperature from Rømer (°Ré) value to other temperature scales:


Rømer to Celsius[°C] = ([°Ro] − 7.5) × 40⁄21
Rømer to Delisle[°De] = (60 − [°Ro]) × 20⁄7
Rømer to Fahrenheit[°F] = ([°Ro] − 7.5) × 24⁄7 + 32
Rømer to Kelvin[K] = ([°Ro] − 7.5) × 40⁄21 + 273.15
Rømer to Newton[°N] = ([°Ro] − 7.5) × 22⁄35
Rømer to Rankine[°R] = ([°Ro] − 7.5) × 24⁄7 + 491.67
Rømer to Reaumur[°Ré] = ([°Ro] − 7.5) × 32⁄21

Using this converter you can get answers to questions like:

  1. How many degrees Celsius are in 0 Romer?
  2. 0 degrees Celsius is equal to how many Romer?
  3. how much is 0 Celsius in Romer?
  4. How to convert degrees Celsius to Romer?
  5. What is the conversion factor to convert from degrees Celsius to Romer?
  6. How to transform degrees Celsius in Romer?
  7. What is the formula to convert from degrees Celsius to Romer? Among others.


While every effort is made to ensure the accuracy of the information provided on this website, we offer no warranties in relation to these informations.