Delisle to Rømer Conversion

Delisle and Rømer are historical temperature scales, less common today but crucial for historical research and scientific data analysis. This page provides a comprehensive guide to converting between these scales, including a convenient online calculator.

Understanding the Delisle Scale

Invented by French astronomer Joseph-Nicolas Delisle in 1732, the Delisle scale is a descending scale. The boiling point of water is set at 0°D, while the freezing point of water is 150°D.

Understanding the Rømer Scale

Developed by Danish astronomer Ole Rømer in 1701, the Rømer scale is also descending. The freezing point of brine (a saltwater solution) is 0°Rø, and the boiling point of water is 60°Rø.

Delisle to Rømer Conversion Formula

The formula to convert Delisle to Rømer is:

**Rmer (°Rø) = 7.5 - (Delisle (°D) * (2/25))**

Using the Delisle to Rømer Conversion Calculator

Simply enter the temperature in Delisle degrees (°D) into the calculator field, and it will instantly display the equivalent temperature in Rømer degrees (°Rø).

Example

Let's convert 50°D to Rømer:

  1. Enter "50" into the calculator field.
  2. Click the "Calculate" button.
  3. The calculator will display the result in Rømer degrees.

Why Use Our Calculator?

  • Accuracy:** Ensures precise conversions with minimal effort.
  • Speed:** Provides instant results, saving you valuable time.
  • Ease of Use:** Features a user-friendly interface for effortless calculations.
  • Accessibility:** Available online 24/7 from any device with internet access.
Delisle Rømer Delisle Rømer Delisle Rømer Delisle Rømer
1°De59.65°Rø21°De52.65°Rø41°De45.65°Rø61°De38.65°Rø
2°De59.30°Rø22°De52.30°Rø42°De45.30°Rø62°De38.30°Rø
3°De58.95°Rø23°De51.95°Rø43°De44.95°Rø63°De37.95°Rø
4°De58.60°Rø24°De51.60°Rø44°De44.60°Rø64°De37.60°Rø
5°De58.25°Rø25°De51.25°Rø45°De44.25°Rø65°De37.25°Rø
6°De57.90°Rø26°De50.90°Rø46°De43.90°Rø66°De36.90°Rø
7°De57.55°Rø27°De50.55°Rø47°De43.55°Rø67°De36.55°Rø
8°De57.20°Rø28°De50.20°Rø48°De43.20°Rø68°De36.20°Rø
9°De56.85°Rø29°De49.85°Rø49°De42.85°Rø69°De35.85°Rø
10°De56.50°Rø30°De49.50°Rø50°De42.50°Rø70De35.50°Rø
11°De56.15°Rø31°De49.15°Rø51°De42.15°Rø71°De35.15°Rø
12°De55.80°Rø32°De48.80°Rø52°De41.80°Rø72°De34.80°Rø
13°De55.45°Rø33°De48.45°Rø53°De41.45°Rø73°De34.45°Rø
14°De55.10°Rø34°De48.10°Rø54°De41.10°Rø74°De34.10°Rø
15°De54.75°Rø35°De47.75°Rø55°De40.75°Rø75°De33.75°Rø
16°De54.40°Rø36°De47.40°Rø56°De40.40°Rø76°De33.40°Rø
17°De54.05°Rø37°De47.05°R57°De40.05°Rø77°De33.05°Rø
18°De53.70°Rø38°De46.70°Rø58°De39.70°Rø78°De32.70°Rø
19°De53.35°Rø39°De46.35°Rø59°De39.35°Rø79°De32.35°Rø
20De53.00°Rø40°De46.00Rø60°De39.00°Rø80°De32.00°Rø