Delisle is a historical temperature scale where 0° represents the boiling point of water.
Delisle to Celsius
Convert delisle (°De) to celsius (°C) instantly. Free online temperature converter with formulas, tables and examples.
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Celsius is a temperature scale based on the freezing and boiling points of water.
°C = 100 − (°De × 2/3)
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Formula
°C = 100 − (°De × 2/3)
°De = 150 − (°C × 3/2)
Conversion table
| 210.00 °De | -40.00 °C |
| 180.00 °De | -20.00 °C |
| 150.00 °De | 0.00 °C |
| 135.00 °De | 10.00 °C |
| 120.00 °De | 20.00 °C |
| 112.50 °De | 25.00 °C |
| 105.00 °De | 30.00 °C |
| 94.50 °De | 37.00 °C |
| 0.00 °De | 100.00 °C |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is Delisle (°De). Delisle is a historical temperature scale where 0° represents the boiling point of water.
What is the destination unit in this conversion?
The destination unit is Celsius (°C). Celsius is a temperature scale based on the freezing and boiling points of water.
How do I convert Delisle to Celsius?
Use the formula °C = 100 − (°De × 2/3). For example, converting a sample value follows the same equation shown in the conversion table above.
Is the Delisle to Celsius conversion exact?
Yes. The relationship between the two scales is a fixed linear equation, so the conversion is mathematically exact with no rounding of constants.
Where is this conversion commonly used?
Temperature conversions like this one appear in science, engineering, weather reporting, and historical or regional references that still use Celsius.
Can I convert Celsius back to Delisle?
Yes. Use the reverse formula °De = 150 − (°C × 3/2) to convert Celsius back to Delisle.
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About this conversion
This page converts Delisle (°De) into Celsius (°C), two scales used to measure temperature.
Delisle to Celsius conversions come up in science, engineering, weather reporting, and historical references, depending on which scale is in use.
The formula is °C = 100 − (°De × 2/3), a linear equation that accounts for both the scale factor and the zero-point offset between the two scales.
The conversion is exact: it uses fixed constants defined by the relationship between the two scales, not a measured or approximate factor.
Delisle is a historical temperature scale where 0° represents the boiling point of water. Celsius is a temperature scale based on the freezing and boiling points of water.