Fahrenheit to Rankine

Fahrenheit

Definition

Fahrenheit (symbol: °F) is a unit of temperature in the Imperial measurement system. On this scale, the freezing point of water is 32°F, and the boiling point is 212°F under standard atmospheric conditions.

History/Origin

The Fahrenheit scale was developed by German physicist Daniel Gabriel Fahrenheit in 1724. He based his scale on three fixed points: the temperature of a mixture of ice and salt (0°F), the freezing point of water (32°F), and the average human body temperature (96°F, later adjusted to 98.6°F).

Current Use

Fahrenheit is primarily used in the United States and a few other countries that follow the Imperial system. It is commonly used for weather forecasts, household ovens, and other temperature measurements in daily life.

Rankine

Definition

Rankine (symbol: °R) is a unit of temperature in the Imperial system. The Rankine scale is an absolute temperature scale, starting from absolute zero, similar to the Kelvin scale but using Fahrenheit degrees.

History/Origin

The Rankine scale was developed by Scottish engineer and physicist William John Macquorn Rankine in 1859. It was designed to provide an absolute reference point for temperature measurements, where absolute zero is 0°R.

Current Use

Rankine is primarily used in engineering fields, particularly in thermodynamics and aerospace engineering. It is also used in some scientific contexts where temperature measurements need to be expressed in Fahrenheit-based absolute values.

Conversion Details

Conversion Formula and Factor

To convert from Fahrenheit to Rankine, you can use the following formula:

• Fahrenheit to Rankine: ( \text{°R} = \text{°F} + 459.67 )

Quick Reference Conversion Table

Step-by-Step Conversion Instructions

Example: Convert 77°F to Rankine

1. Convert Fahrenheit to Rankine:

• Use the formula: ( \text{°R} = \text{°F} + 459.67 )

• Calculation: ( 77 + 459.67 = 536.67 )°R

Practical Examples

1. Example 1: If the temperature is 59°F, convert it to Rankine using the formula (59 + 459.67 = 518.67°R).

2. Example 2: For a temperature of 95°F, convert to Rankine using the formula (95 + 459.67 = 554.67°R).

Inches to cm to Feet Conversion

Definition

Inches, centimeters, and feet are units of length used in different measurement systems. An inch (symbol: in) is a unit in the Imperial and US customary systems, a centimeter (symbol: cm) is part of the metric system, and a foot (symbol: ft) is also a unit in the Imperial and US customary systems.

Conversion Formula and Factor

• Inches to centimeters: ( \text{cm} = \text{inches} \times 2.54 )

• Centimeters to feet: ( \text{feet} = \frac{\text{cm}}{30.48} )

Quick Reference Conversion Table

Step-by-Step Conversion Instructions

Example: Convert 20 inches to feet

1. Convert Inches to Centimeters: