Per Fahrenheit to Per Kelvin Converter
Quick answer: To convert Per Fahrenheit to Per Kelvin, multiply by 1.8. For example, 10 1/°F is 18 1/K. One per degree fahrenheit equals 1.8 1/K.
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Use the Per Fahrenheit to Per Kelvin Converter
Per Fahrenheit to Per Kelvin formula and what each symbol means
1/K = 1/°F × 1.8
| Symbol | Meaning |
|---|---|
| 1/°F | Per degree Fahrenheit |
| 1/K | Per kelvin |
Per Fahrenheit to Per Kelvin examples
1 1/°F
1 1/°F × 1.8 = 1.8 1/K.
10 1/°F
10 1/°F × 1.8 = 18 1/K.
100 1/°F
100 1/°F × 1.8 = 180 1/K.
Per Fahrenheit compared with Per Kelvin
One 1/°F is 1.8 times as large as one 1/K, so your number gets bigger when you convert Per Fahrenheit to Per Kelvin and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About Per Fahrenheit and Per Kelvin
Per degree Fahrenheit (1/°F): Per Fahrenheit degree; as a unit it equals 1.8 per kelvin, so a material’s per-°F value is 5/9 of its per-kelvin value. Per kelvin (1/K): Per kelvin, the SI unit of a thermal expansion coefficient.
How to calculate Per Fahrenheit to Per Kelvin step by step
- Enter the value in 1/°F (the starting unit).
- Multiply by 1.8, because 1 1/°F = 1.8 1/K.
- The product is the value in 1/K. To go back, divide by 1.8 or multiply by 0.5555556.
Popular thermal expansion conversions
How to read your Per Fahrenheit to Per Kelvin result
The coefficient of linear thermal expansion is the fractional change in length per degree.
| PER FAHRENHEIT | PER KELVIN |
|---|---|
| 1 | 1.8 |
| 2 | 3.6 |
| 5 | 9 |
| 10 | 18 |
| 20 | 36 |
| 50 | 90 |
| 100 | 180 |
| 1,000 | 1,800 |
Per Kelvin to Per Fahrenheit: quick table
| PER KELVIN | PER FAHRENHEIT |
|---|---|
| 1 | 0.5555556 |
| 5 | 2.777778 |
| 10 | 5.555556 |
| 25 | 13.88889 |
| 50 | 27.77778 |
| 100 | 55.55556 |
| 250 | 138.8889 |
| 500 | 277.7778 |
Common mistakes when calculating Per Fahrenheit to Per Kelvin
- Using a linear coefficient for volume expansion, which is roughly three times larger for solids.
- Dividing when you should multiply: from 1/°F to 1/K multiply by 1.8; from 1/K to 1/°F divide by 1.8.
Per Fahrenheit to Per Kelvin FAQ
How many 1/K are in 1 1/°F?
1 1/°F equals 1.8 1/K.
How many 1/°F are in 1 1/K?
1 1/K equals 0.5555556 1/°F.
Is 1 1/°F = 1.8 1/K an exact conversion?
The factor is shown rounded to 7 significant figures (1.8). The calculator above uses more digits.
What is a per degree Fahrenheit (1/°F)?
Per Fahrenheit degree; as a unit it equals 1.8 per kelvin, so a material’s per-°F value is 5/9 of its per-kelvin value.
How can I estimate Per Fahrenheit to Per Kelvin in my head?
One 1/°F is 1.8 times as large as one 1/K, so your number gets bigger when you convert Per Fahrenheit to Per Kelvin and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
What is 150 1/°F in Per Kelvin?
150 1/°F = 270 1/K (since 150 × 1.8).
What is 0.5 1/°F in Per Kelvin?
0.5 1/°F = 0.9 1/K (since 0.5 × 1.8).
What is 25 1/°F in Per Kelvin?
25 1/°F = 45 1/K (since 25 × 1.8).
How many decimals should I keep when converting 1/°F to 1/K?
Match the precision of your original measurement. For example, 18 1/K rounds to 18 1/K at 3 significant figures; keep more digits only for engineering or scientific work.
More in Thermal Expansion converters
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)