Thermal expansion
Linear expansion coefficient per temperature interval.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert parts per million per kelvin (ppm/K) to per degree Fahrenheit (1/°F). Enter a value for an instant result, or use the examples and reverse conversion below.
Linear expansion coefficient per temperature interval.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a parts per million per kelvin value to calculate per degree Fahrenheit with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| per kelvinfrom ppm/K | 1/K | 0.000001 |
| micrometre per metre kelvinfrom ppm/K | µm/(m·K) | 1 |
| parts per million per kelvinfrom ppm/K | ppm/K | 1 |
| per degree Fahrenheitfrom ppm/K | 1/°F | 0.000000555556 |
| parts per million per degree Fahrenheitfrom ppm/K | ppm/°F | 0.555556 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Parts Per Million Per Kelvin (ppm/K) and per degree Fahrenheit (1/°F) are units of thermal expansion. Use this page to convert in either direction.
| Parts Per Million Per Kelvin (ppm/K) | Per Degree Fahrenheit (1/°F) |
|---|---|
| 1 ppm/K | 0.000000555556 1/°F |
| 5 ppm/K | 0.00000277778 1/°F |
| 10 ppm/K | 0.00000555556 1/°F |
| 100 ppm/K | 0.0000555556 1/°F |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
1/°F to ppm/K (per degree Fahrenheit to parts per million per kelvin)