Convert Rømer to Fahrenheit

Convert Rømer (°Rø) to Fahrenheit (°F) instantly and accurately.

Conversion Formula

°F = (°Rø − 7.5) × 24/7 + 32

About Rømer

Rømer (°Rø) was designed by Danish astronomer Ole Christensen Rømer in 1701, making it one of the earliest calibrated temperature scales using two fixed points. It sets water's freezing point at 7.5°Rø and boiling point at 60°Rø; the offset of 7.5 at freezing was chosen to avoid negative numbers during the coldest Danish winters. In 1708, Daniel Gabriel Fahrenheit visited Rømer and was directly inspired by his thermometer design to create the Fahrenheit scale. Body temperature on the Rømer scale is approximately 22.5°Rø. Though now obsolete, Rømer's scale holds an important place in thermometric history.

About Fahrenheit

Fahrenheit (°F) was developed by German physicist Daniel Gabriel Fahrenheit in 1724 and remains the primary temperature scale in the United States, Belize, and the Cayman Islands. Water freezes at 32°F and boils at 212°F at standard atmospheric pressure. For Americans, common references include: room temperature (68-72°F), body temperature (98.6°F), and a hot summer day (90-100°F). The scale was originally based on the lowest temperature Fahrenheit could create with ice and salt (-17.8°C or 0°F).

Quick Reference Table

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