10 K to Rankine – Answer with Formula

10 kelvin (K) is equal to 18.0 rankine (°R).

To convert kelvin to rankine, multiply the kelvin value by 1.8. This works because both units measure absolute temperature, but rankine uses Fahrenheit’s scale increments while kelvin uses Celsius increments.

Conversion Tool

Conversion Formula

The conversion formula from kelvin (K) to rankine (°R) is:

°R = K × 1.8

Kelvin and rankine both measure absolute temperatures, but kelvin uses Celsius-based increments, whereas rankine uses Fahrenheit-based increments. Since one degree Fahrenheit equals 5/9 of a degree Celsius, multiplying kelvin by 1.8 (which is 9/5) converts it to rankine.

Example calculation:

• Given temperature: 10 K
• Multiply by 1.8 → 10 × 1.8 = 18.0 °R
• So, 10 kelvin equals 18.0 rankine

Conversion Example

• Convert 25 K to rankine:
  • Multiply 25 by 1.8
  • 25 × 1.8 = 45.0 °R
  • Therefore, 25 kelvin is 45.0 rankine
• Convert 0 K to rankine:
  • 0 × 1.8 = 0 °R
  • Absolute zero in kelvin equals absolute zero in rankine
• Convert 100 K to rankine:
  • 100 × 1.8 = 180.0 °R
  • This shows how rankine scales faster than kelvin
• Convert 15.5 K to rankine:
  • 15.5 × 1.8 = 27.9 °R
  • So 15.5 kelvin equals 27.9 rankine

Conversion Chart

The chart below shows temperatures from -15.0 K to 35.0 K converted to rankine. You can read across the rows to find the kelvin value, then look at the right column to see the corresponding rankine temperature.

Related Conversion Questions

• What is the rankine equivalent of 10 kelvin?
• How do you convert 10 K to °R quickly?
• Is 10 kelvin colder or warmer than 18 rankine?
• What formula is used for converting 10 kelvin into rankine?
• Can 10 K be directly converted to rankine without subtracting anything?
• Does converting 10 kelvin to rankine involve adding or multiplying?
• How much is 10 kelvin in rankine scale with decimals?

Conversion Definitions

Kelvin (K): Kelvin is a unit of thermodynamic temperature based on absolute zero, where zero kelvin is the theoretical point at which particles have minimum thermal motion. It uses the same size degree as Celsius but starts from absolute zero rather than water’s freezing point.

Rankine (°R): Rankine is an absolute temperature scale using Fahrenheit degree increments. Zero rankine represents absolute zero, and the scale increases by 1 °R per degree Fahrenheit, making it useful in thermodynamics within the imperial measurement system.

Conversion FAQs

Why does the kelvin to rankine formula multiply by 1.8 and not add a number?

Because both kelvin and rankine are absolute scales starting at absolute zero, conversion only involves scaling the unit size. Since rankine degrees are based on Fahrenheit increments which are 1.8 times bigger than kelvin’s Celsius increments, multiplication by 1.8 converts kelvin directly to rankine without offset.

Can kelvin have negative values when converting to rankine?

No, kelvin cannot be negative by definition since zero kelvin is absolute zero. Therefore, converting kelvin to rankine will not produce negative rankine values if the kelvin input itself is valid and non-negative.

Why is the rankine scale used if kelvin exists?

Rankine is primarily used in engineering fields in the United States where Fahrenheit is common. It provides an absolute temperature scale consistent with Fahrenheit increments, making thermodynamic calculations easier when working with imperial units.

Is converting kelvin to rankine lossless?

Yes, since the conversion is a linear scaling without subtraction or addition, it preserves the temperature’s absolute value precisely. No information is lost, just the unit scale changes.

How to convert rankine back to kelvin?

To convert rankine to kelvin, divide the rankine temperature by 1.8. This reverses the multiplication done in kelvin to rankine conversion, restoring the temperature to kelvin units.

Last Updated : 22 June, 2025

Sandeep Bhandari

Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.