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ppm/∘F\text{ppm/}^{\circ}\text{F}

part per million per Fahrenheit degree

Thermal expansion coefficientexact by definition

The part per million per Fahrenheit degree is exactly 1.8 × 10⁻⁶ /K, because a Fahrenheit degree is 5/9 of a kelvin so a per-Fahrenheit coefficient must be larger by 9/5 to describe the same material. Steel is 6.5 ppm/°F, the same statement as 11.7 ppm/K.

1 ppm/∘F\text{ppm/}^{\circ}\text{F} 0.0000018 1/K\text{1/K}

One part per million per fahrenheit degree in every thermal expansion coefficient unit

1.8part per million per kelvin (ppm/K)
1.8part per million per Celsius degree (ppm/°C)
1part per million per Fahrenheit degree (ppm/°F)this unit
1microinch per inch per Fahrenheit degree (μin/(in·°F))
0.00018percent per Celsius degree (%/°C)
0.0001percent per Fahrenheit degree (%/°F)
0.0000018per kelvin (1/K)
0.0000018per Celsius degree (1/°C)
0.000001per Fahrenheit degree (1/°F)
0.000001per Rankine degree (1/°R)
Solvers that use thermal expansion coefficient

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