Fahrenheit to Kelvin Calculator

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0 K

The Kelvin (K) and Fahrenheit (°F) scales measure temperature but have different starting points and unit increments. The Kelvin scale, primarily used in scientific contexts, begins at absolute zero (0 K), which represents the absence of all thermal energy. The Fahrenheit scale, in contrast, is commonly used in the United States for weather and cooking.

To convert temperatures from Fahrenheit to Kelvin, the following formula is used:

K = (°F − 32) × 5/9 + 273.15

Here, “K” represents the temperature in Kelvin, and “°F” represents the temperature in Fahrenheit.

Why Kelvin is Important in Scientific Measurements

The Kelvin scale is fundamental in scientific research because it starts at absolute zero, the point at which molecular motion ceases. Unlike Celsius and Fahrenheit, Kelvin does not use negative numbers, which makes it ideal for scientific calculations related to thermodynamics, physics, and chemistry. The Kelvin scale’s direct relationship to absolute energy means it is used in studies involving extreme temperatures, such as cryogenics and stellar temperatures.

Applications of Fahrenheit to Kelvin Conversions

Understanding how to convert Fahrenheit to Kelvin is crucial for professionals in fields such as engineering, astrophysics, and climatology. For instance, in aerodynamics and space exploration, accurate temperature measurements are essential when designing heat shields and other spacecraft components that will encounter extreme conditions. Meteorologists also use Kelvin to measure and forecast temperatures on other planets, where temperatures can vary drastically from Earth’s.

Automating Temperature Conversions for Efficiency

With the increasing reliance on technology, automating temperature conversions using tools like Excel or custom-built calculators is becoming a necessity in both research and industrial applications. Automating these conversions reduces the risk of errors in data analysis and allows scientists, engineers, and researchers to focus on more complex tasks. For industries that rely on precise temperature measurements, such as pharmaceuticals and manufacturing, automation ensures accuracy and consistency across processes.

How to Convert Fahrenheit to Kelvin

To convert a temperature from Fahrenheit to Kelvin, follow these straightforward steps:

Subtract 32: This step adjusts the Fahrenheit temperature to the equivalent Celsius range, as 0°C is equal to 32°F.

Multiply by 5/9: This step accounts for the difference in the temperature increment size between Fahrenheit and Celsius.

Add 273.15: Since 0°C is equal to 273.15 K, this final step brings the temperature from the Celsius scale to the Kelvin scale.

Example
Convert 98.6°F (the average human body temperature) to Kelvin:
K = (98.6 − 32) × 5/9 + 273.15
K = (66.6) × 5/9 + 273.15
K = 310.15 K

Thus, 98.6°F is approximately equal to 310.15 K.

Converting Kelvin to Fahrenheit

If you need to convert from Kelvin back to Fahrenheit, a different formula is used:

°F = (K − 273.15) × 9/5 + 32

This formula is essentially the reverse of the Fahrenheit to Kelvin conversion. Subtracting 273.15 converts the temperature from Kelvin to Celsius, multiplying by 9/5 scales it back to Fahrenheit increments, and adding 32 adjusts for the Fahrenheit starting point.

Example

Convert 300 K to Fahrenheit:
°F = (300 − 273.15) × 9/5 + 32
°F = 26.85 × 9/5 + 32
°F = 80.33°F

300 K is approximately equal to 80.33°F.

Using the Fahrenheit to Kelvin Formula in Excel

Performing temperature conversions in Excel can save time, especially when working with large datasets. To convert Fahrenheit to Kelvin in Excel, you can use a simple formula:

= ((A1 – 32) * 5 / 9) + 273.15

In this example, “A1” refers to the cell containing the Fahrenheit value.

This formula can be copied and applied across multiple cells, making it easy to convert a list of Fahrenheit temperatures to their Kelvin equivalents.

Fahrenheit to Kelvin Conversions

1 Fahrenheit to Kelvin = 255.93
5 Fahrenheit to Kelvin = 258.15
10 Fahrenheit to Kelvin = 260.93
15 Fahrenheit to Kelvin = 263.71
20 Fahrenheit to Kelvin = 266.48
25 Fahrenheit to Kelvin = 269.26
30 Fahrenheit to Kelvin = 272.04
32 Fahrenheit to Kelvin = 273.15
32 degrees Fahrenheit to Kelvin = 273.15
35 Fahrenheit to Kelvin = 274.26
40 Fahrenheit to Kelvin = 276.48
45 Fahrenheit to Kelvin = 278.71
50 Fahrenheit to Kelvin = 280.93
55 Fahrenheit to Kelvin = 283.15
60 Fahrenheit to Kelvin = 285.37
70 Fahrenheit to Kelvin = 289.82
70 degrees Fahrenheit to Kelvin = 289.82
72 Fahrenheit to Kelvin = 290.93
98 Fahrenheit to Kelvin = 309.82
98 degrees Fahrenheit to Kelvin = 309.82
100 Fahrenheit to Kelvin = 310.93
200 Fahrenheit to Kelvin = 366.48
300 Fahrenheit to Kelvin = 422.04
400 Fahrenheit to Kelvin = 477.59
500 Fahrenheit to Kelvin = 533.15
600 Fahrenheit to Kelvin = 588.71
700 Fahrenheit to Kelvin = 644.26
800 Fahrenheit to Kelvin = 699.82
900 Fahrenheit to Kelvin = 755.37
1000 Fahrenheit to Kelvin = 810.93

Kelvin to Fahrenheit conversions

0 Kelvin to Fahrenheit = −459.67
1 Kelvin to Fahrenheit = −457.87
2 Kelvin to Fahrenheit = −456.07
2.7 Kelvin to Fahrenheit = −454.67
5 Kelvin to Fahrenheit = −450.67
10 Kelvin to Fahrenheit = −441.67
15 Kelvin to Fahrenheit = −432.67
20 Kelvin to Fahrenheit = −423.67
25 Kelvin to Fahrenheit = −414.67
30 Kelvin to Fahrenheit = −405.67
35 Kelvin to Fahrenheit = −396.67
40 Kelvin to Fahrenheit = −387.67
45 Kelvin to Fahrenheit = −378.67
50 Kelvin to Fahrenheit = −369.67
55 Kelvin to Fahrenheit = −360.67
60 Kelvin to Fahrenheit = −351.67
65 Kelvin to Fahrenheit = −342.67
70 Kelvin to Fahrenheit = −333.67
75 Kelvin to Fahrenheit = −324.67
80 Kelvin to Fahrenheit = −315.67
85 Kelvin to Fahrenheit = −306.67
90 Kelvin to Fahrenheit = −297.67
95 Kelvin to Fahrenheit = −288.67
100 Kelvin to Fahrenheit = −279.67
250 Kelvin to Fahrenheit = −9.67
293 Kelvin to Fahrenheit = 68
300 Kelvin to Fahrenheit = 80.33
300 degrees Kelvin to Fahrenheit = 80.33
350 Kelvin to Fahrenheit = 170.33
400 Kelvin to Fahrenheit = 260.33
500 Kelvin to Fahrenheit = 440.33
1000 Kelvin to Fahrenheit = 1340.33
4000 Kelvin to Fahrenheit = 6740.33
5000 Kelvin to Fahrenheit = 8540.33
6000 Kelvin to Fahrenheit = 10340.33