# Rømer to Newton (°Rø to °N)

Source: https://www.unitconvertercalculator.com/temperature/romer-to-newton-scale/

To convert Romer to Newton, use the formula: N = (Ro - 7.5) x 22/35. The Romer scale is the early Danish scale that influenced Fahrenheit, while the Newton scale is Isaac Newton's rarely-used temperature scale. Water freezes at 7.5 degrees Ro (0 N) and boils at 60 degrees Ro (33 N).

## Formula

°Rø via Kelvin to °N

## Conversion Table

| Rømer (°Rø) | Newton (°N) |
|---|---|
| -10 °Rø | -10.999999999999 °N |
| 0 °Rø | -4.7142857142843 °N |
| 5 °Rø | -1.571428571427 °N |
| 7.5 °Rø | 0 °N |
| 10 °Rø | 1.571428571427 °N |
| 15 °Rø | 4.7142857142843 °N |
| 20 °Rø | 7.8571428571416 °N |
| 25 °Rø | 10.999999999999 °N |
| 30 °Rø | 14.142857142856 °N |
| 40 °Rø | 20.428571428571 °N |
| 50 °Rø | 26.714285714285 °N |
| 60 °Rø | 33 °N |
| 80 °Rø | 45.571428571429 °N |
| 100 °Rø | 58.142857142858 °N |
| 200 °Rø | 121 °N |

## Units

### Rømer (°Rø)

A temperature scale proposed by Ole Christensen Rømer in 1701. Water freezes at 7.5 °Rø and boils at 60 °Rø. It influenced Fahrenheit's scale development.

### Newton (°N)

A temperature scale devised by Isaac Newton around 1700. Water freezes at 0 °N and boils at 33 °N. Not to be confused with the newton unit of force.

## Background

The Romer scale was created by Ole Romer, Danish astronomer, around 1701, influenced Fahrenheit. The Newton scale was created by Isaac Newton, around 1700, barely adopted beyond his laboratory. Converting between them bridges different eras and different measurement philosophies in the history of thermometry.

## Good to Know

The history of temperature measurement is the history of scientific collaboration and competition across borders. The Romer scale (influenced Fahrenheit) and the Newton scale (barely adopted beyond his laboratory) represent different national contributions to solving the same fundamental problem: how to assign numbers to the sensation of hot and cold.

## FAQ

### How do you convert Romer to Newton?

Use the formula N = (Ro - 7.5) x 22/35. At the freezing point of water: 7.5 Ro = 0 N. At the boiling point: 60 Ro = 33 N.

### When would you need to convert Romer to Newton?

This conversion is needed when interpreting historical scientific records, comparing temperature data across different measurement traditions, or completing engineering calculations that mix temperature scales from different national standards.

### What are the key reference points for both scales?

Water freezes at 7.5 Ro = 0 N. Water boils at 60 Ro = 33 N. These two fixed points anchor both scales and provide easy verification of any conversion calculation.

## Non-Frequently Asked Questions

### What everyday temperature feels the same whether you measure it in Romer or Newton Temp?

Every temperature feels the same regardless of the scale you use to describe it. A comfortable room is comfortable whether you call it by its Romer or Newton Temp value. Temperature scales change the number, not the physics. Your skin cannot tell the difference between measurement systems.

### Is converting Romer to Newton Temp a skill anyone puts on their resume?

Unless you are applying to work in a museum of scientific instruments or writing the world's most comprehensive conversion website, this particular skill would raise more questions than it answers in a job interview. But it does demonstrate attention to detail and a fondness for completeness - qualities any employer should appreciate.

### What would happen if weather apps added Romer and Newton Temp to their display?

Weather apps already struggle to present temperature clearly in one or two scales. Adding Romer and Newton Temp would turn a simple forecast into a mathematics lecture. Users would see five or more numbers for the same temperature, causing decision paralysis about whether to bring a jacket. Simplicity in weather communication is not a luxury - it is a safety feature.

## Related Articles

- [Why We Measure: The Deepest Urge in Human Civilisation](https://www.unitconvertercalculator.com/blog/why-we-measure)
- [The Map Is Not the Territory: Why Every Measurement Is Wrong](https://www.unitconvertercalculator.com/blog/the-map-is-not-the-territory)
- [Zero: The Most Dangerous Number in Measurement](https://www.unitconvertercalculator.com/blog/zero-the-most-dangerous-number-in-measurement)
- [The Speed of Everything: How We Measure From Glaciers to Light](https://www.unitconvertercalculator.com/blog/the-speed-of-everything)
- [Why Your Recipe Is Lying to You: The Chaos of Cooking Measurements](https://www.unitconvertercalculator.com/blog/why-recipe-measurements-are-unreliable)
- [When Measurements Go Wrong - Disasters, Blunders and Happy Accidents](https://www.unitconvertercalculator.com/blog/when-measurements-go-wrong)
- [The Surprising Stories Behind Everyday Units of Measurement](https://www.unitconvertercalculator.com/blog/stories-behind-measurement-units)
- [Metric vs. Imperial - The Complete Guide to the World's Two Measurement Systems](https://www.unitconvertercalculator.com/blog/metric-vs-imperial-complete-guide)
- [Temperature Conversion Guide for Travel, Cooking & Weather](https://www.unitconvertercalculator.com/blog/temperature-conversion-guide)

## See Also

- [Newton to Rømer](https://www.unitconvertercalculator.com/temperature/newton-scale-to-romer/)