Per Kelvin to ppm per °F) Converter
Enter the thermal expansion in per kelvin below to convert it to ppm per °f).
Convert Per Kelvin (1/K) to ppm per °F (µin/(in·°F))
Enter a value in per kelvin (1/k) (1/K) to convert to ppm per °f (µin/(in·°f)) (ppm/°F).
Length/Length per Kelvin to Microinch per Inch-°F Conversion Table
Table showing various length/length per kelvin measurements converted to ppm per °f). Click any preset value or arrow to load it into the converter.
| Per Kelvin (1/K) (1/K) | ppm per °F (µin/(in·°F)) (ppm/°F) |
|---|---|
| 0.0000001 1/K | 0.0555556 ppm/°F |
| 0.0000002 1/K | 0.1111111 ppm/°F |
| 0.0000003 1/K | 0.1666667 ppm/°F |
| 0.0000004 1/K | 0.2222222 ppm/°F |
| 0.0000005 1/K | 0.2777778 ppm/°F |
| 0.0000006 1/K | 0.3333333 ppm/°F |
| 0.0000007 1/K | 0.3888889 ppm/°F |
| 0.0000008 1/K | 0.4444444 ppm/°F |
| 0.0000009 1/K | 0.5 ppm/°F |
| 0.00000001 1/K | 0.0055556 ppm/°F |
How to Convert Per Kelvin to ppm per °F)
To convert per kelvin to ppm per °f), multiply the thermal expansion by the following conversion ratio: 555,555.5555556 ppm per °f)/length/length per kelvin.
Since one length/length per kelvin is equal to 555,555.5555556 ppm per °f), you can use this simple formula to convert:
The thermal expansion in ppm per °f) is equal to the thermal expansion in per kelvin multiplied by 555,555.5555556.
For example, here's how to convert 5 per kelvin to ppm per °f) using the formula above.
How Many ppm per °F) Are in a Length/Length per Kelvin?
There are 555,555.5555556 ppm per °f) in a length/length per kelvin, which is why we use this value in the formula above.
Our length/length per kelvin to microinch per inch-°f calculator automatically converts your thermal expansion measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Per Kelvin and ppm per °f) are both units used to measure thermal expansion. Keep reading to learn more about each unit.
What Is a Length/Length per Kelvin?
SI fractional thermal expansion per kelvin. It serves as a primary reference unit for measuring thermal expansion across scientific and practical applications. [1]
The length/length per kelvin is classified as an International System of Units (SI) unit of thermal expansion. Per Kelvin can be abbreviated as 1/K; for example, 1 length/length per kelvin can be written as 1 1/K.
As the primary coherent reference unit for thermal expansion in this category, all other thermal expansion units are mathematically anchored to the length/length per kelvin (1/K).
In practice, per kelvin (1/K) are widely used across standard thermal expansion applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Microinch per Inch-°F?
A microinch per inch-°f is a unit of thermal expansion equal to 0.0000018 per kelvin (1/K), the base unit for thermal expansion. US engineering expansion unit (1.8×10⁻⁶ /K). [2]
The microinch per inch-°f is classified as a US customary unit of thermal expansion. ppm per °F) can be abbreviated as ppm/°F; for example, 1 microinch per inch-°f can be written as 1 ppm/°F.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the microinch per inch-°f (ppm/°F) a convenient decimal multiple of the length/length per kelvin (1/K).
In practice, ppm per °f) (ppm/°F) are widely used across fine-tolerance laboratory, analytical, and micro-scale thermal expansion measurements within US customary workflows, engineering documentation, and technical data sheets.
When converting thermal expansion between per kelvin (1/K) and ppm per °f) (ppm/°F), keep full floating-point precision (1 1/K = 555,555.5555556 ppm/°F; 1 ppm/°F = 0.0000018 1/K) during intermediate calculations and round only the final microinch per inch-°f figure to match your instrument tolerance.
More Length/Length per Kelvin & Microinch per Inch-°F Conversions
Need to calculate in the opposite direction? Use our ppm per °f (µin/(in·°f)) to per kelvin (1/k) calculator to switch your starting unit immediately. You can also explore related tools such as converting ppm per °f (µin/(in·°f)) to per kelvin (1/k), converting per kelvin (1/k) to per degree celsius (1/°c), or converting per kelvin (1/k) to per degree fahrenheit (1/°f).
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Thermal Expansion Metrology Standard — Per Kelvin (1/K) (1/K) to ppm per °F (µin/(in·°F)) (ppm/°F)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Length/Length per Kelvin (1/K) & Microinch per Inch-°F (ppm/°F) (ppm/°F)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (1/K to ppm/°F)