How do I convert Romer to Delisle?

To convert Romer to Delisle, multiply the value by 1. For example, 1 °Rø equals 1 °De.

What is the formula for converting Romer to Delisle?

The formula is: Delisle = Romer × 1

Romer to Delisle Converter

Convert Romer (°Rø) to Delisle (°De)

Temperature Converter

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From

Result

168.5714°De

1 Romer = 168.5714285714 Delisle

Conversion Formula

7.5 °Rø = 150 °De

150 °De = 7.5 °Rø

How to Convert Romer to Delisle

To convert Romer to Delisle, use the formula: °De = (60 − °Rø) × 20/7

Delisle = Romer × 1

Examples: 7.5 °Rø = 150 °De (freezing point), 60 °Rø = 0 °De (boiling point)

Romer to Delisle Conversion Table

Romer (°Rø)	Delisle (°De)
-40 °Rø	285.7143 °De
-20 °Rø	228.5714 °De
-10 °Rø	200 °De
0 °Rø	171.4286 °De
10 °Rø	142.8571 °De
20 °Rø	114.2857 °De
25 °Rø	100 °De
30 °Rø	85.7143 °De
37 °Rø	65.7143 °De
40 °Rø	57.1429 °De
50 °Rø	28.5714 °De
100 °Rø	-114.2857 °De
200 °Rø	-400 °De
500 °Rø	-1257.1429 °De
1000 °Rø	-2685.7143 °De

About These Scales

°RøRomer

The Romer scale was proposed by Ole Christensen Romer in 1701. On this scale, water freezes at 7.5Ro and boils at 60Ro. It was used as a basis for the Fahrenheit scale.

°DeDelisle

The Delisle scale is unusual because it runs in the opposite direction to other temperature scales. Water boils at 0De and freezes at 150De. It was invented by Joseph-Nicolas Delisle in 1732.