Follow these steps to convert given Kelvin value from Kelvin units to Fahrenheit units.
Enter the input Kelvin value in the text field.
The given Kelvin is converted to Fahrenheit in realtime ⌚ using the formula, and displayed under the Fahrenheit label.
You may copy the resulting Fahrenheit value using the Copy button.
Formula
To convert given temperature from Kelvin to Fahrenheit, use the following formula.
Fahrenheit = Kelvin * 9 / 5 - 459.67
Calculation
Calculation will be done after you enter a valid input.
Kelvin to Fahrenheit Conversion Table
The following table gives some of the most used conversions from Kelvin to Fahrenheit.
Kelvin (K)
Fahrenheit (°F)
0 K
-459.67°F
1 K
-457.87°F
2 K
-456.07°F
3 K
-454.27°F
4 K
-452.47°F
5 K
-450.67°F
6 K
-448.87°F
7 K
-447.07°F
8 K
-445.27°F
9 K
-443.47°F
10 K
-441.67°F
20 K
-423.67°F
50 K
-369.67°F
100 K
-279.67°F
1000 K
1340.33°F
Kelvin
The Kelvin scale is an absolute temperature scale named after the Scottish physicist William Thomson, 1st Baron Kelvin. It is commonly used in scientific and engineering applications where an absolute temperature reference is required. The Kelvin scale starts at absolute zero, the point at which all molecular motion ceases. The freezing point of water on the Kelvin scale is 273.15 K, and the boiling point is 373.15 K.
Fahrenheit
Fahrenheit is a temperature scale proposed by the German physicist Daniel Gabriel Fahrenheit. On the Fahrenheit scale, the freezing point of water is 32 degrees, and the boiling point is 212 degrees under standard atmospheric pressure. The Fahrenheit scale is commonly used in the United States and some other countries, especially for weather reporting and everyday temperature measurements.
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"x_slug": "kelvin",
"y_slug": "fahrenheit",
"x": "K",
"y": "°F",
"x_desc": "Kelvin",
"y_desc": "Fahrenheit",
"category": "Temperature",
"symbol": "m",
"formula": "x * 9 / 5 - 459.67",
"precision": 11,
"examples": "<div class=\"example\">\n <div class=\"example_head\"><span class=\"example_n\">1</span>\n <h3 class=\"question\">Consider that the operating temperature of a high-end processor is 320 Kelvin.<br>Convert this temperature from Kelvin to Fahrenheit.</h3></div>\n <h4 class=\"answer\">Answer:</h4>\n <p><strong>Given:</strong></p>\n <p>The temperature in kelvin is:</p>\n <p class=\"step\"><span>Temperature<sub>(Kelvin)</sub></span> = 320</p>\n <p><strong>Formula:</strong></p>\n <p>The formula to convert temperature from kelvin to fahrenheit is:</p>\n <p class=\"formula step\"><span>Temperature<sub>(Fahrenheit)</sub></span> = <span>Temperature<sub>(Kelvin)</sub></span> × 9 / 5 - 459.67</p>\n <p><strong>Substitution:</strong></p>\n <p>Substitute given weight <strong>Temperature<sub>(Kelvin)</sub> = 320</strong> in the above formula.</p>\n <p class=\"step\"><span>Temperature<sub>(Fahrenheit)</sub></span> = <span>320</span> × 9 / 5 - 459.67</p>\n <p class=\"step\"><span>Temperature<sub>(Fahrenheit)</sub></span> = 116.33</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>320 K</strong> is equal to <strong>116.33 °F</strong>.</p>\n <p>The temperature is <strong>116.33 °F</strong>, in fahrenheit.</p>\n </div>\n <div class=\"example\">\n <div class=\"example_head\"><span class=\"example_n\">2</span>\n <h3 class=\"question\">Consider that the temperature of liquid nitrogen is approximately 77 Kelvin.<br>Convert this temperature from Kelvin to Fahrenheit.</h3></div>\n <h4 class=\"answer\">Answer:</h4>\n <p><strong>Given:</strong></p>\n <p>The temperature in kelvin is:</p>\n <p class=\"step\"><span>Temperature<sub>(Kelvin)</sub></span> = 77</p>\n <p><strong>Formula:</strong></p>\n <p>The formula to convert temperature from kelvin to fahrenheit is:</p>\n <p class=\"formula step\"><span>Temperature<sub>(Fahrenheit)</sub></span> = <span>Temperature<sub>(Kelvin)</sub></span> × 9 / 5 - 459.67</p>\n <p><strong>Substitution:</strong></p>\n <p>Substitute given weight <strong>Temperature<sub>(Kelvin)</sub> = 77</strong> in the above formula.</p>\n <p class=\"step\"><span>Temperature<sub>(Fahrenheit)</sub></span> = <span>77</span> × 9 / 5 - 459.67</p>\n <p class=\"step\"><span>Temperature<sub>(Fahrenheit)</sub></span> = -321.07</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>77 K</strong> is equal to <strong>-321.07 °F</strong>.</p>\n <p>The temperature is <strong>-321.07 °F</strong>, in fahrenheit.</p>\n </div>\n ",
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"title": "Temperature<br>Converter"
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"img": "<img class=\"conversion\" src=\"/images/unit/temperature/kelvin-fahrenheit.webp\" height=\"360\" width=\"640\" alt=\"Kelvin to Fahrenheit Converter | K to °F\" />",
"faqs": [
{
"name": "How do I convert Kelvin to Fahrenheit?",
"answer": "Subtract 273.15 from the Kelvin temperature, multiply by \\( \\dfrac{9}{5} \\), then add 32. For example, \\( (300\\,K - 273.15) \\times \\dfrac{9}{5} + 32 \\approx 80.33\\,°F \\)."
},
{
"name": "What is the formula for converting Kelvin to Fahrenheit?",
"answer": "The formula is: \\( \\text{Fahrenheit} = (\\text{Kelvin} - 273.15) \\times \\dfrac{9}{5} + 32 \\)."
},
{
"name": "Is 273.15 Kelvin equal to 32 degrees Fahrenheit?",
"answer": "Yes, 273.15\\,K is equivalent to 32\\,°F, the freezing point of water."
},
{
"name": "How do I convert Fahrenheit to Kelvin?",
"answer": "Subtract 32 from the Fahrenheit temperature, multiply by \\( \\dfrac{5}{9} \\), then add 273.15. The formula is: \\( \\text{Kelvin} = (\\text{Fahrenheit} - 32) \\times \\dfrac{5}{9} + 273.15 \\)."
},
{
"name": "Why do we use 273.15 in the conversion between Kelvin and Fahrenheit?",
"answer": "Because 0\\,K corresponds to absolute zero, and 273.15 adjusts for the difference between Kelvin and Celsius before converting to Fahrenheit."
},
{
"name": "How many degrees Fahrenheit are in 310 Kelvin?",
"answer": "\\( (310\\,K - 273.15) \\times \\dfrac{9}{5} + 32 \\approx 98.6\\,°F \\)."
},
{
"name": "What is absolute zero in Kelvin and Fahrenheit?",
"answer": "Absolute zero is 0\\,K and -459.67\\,°F."
}
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"@type": "Question",
"name": "How do I convert Kelvin to Fahrenheit?",
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"text": "Subtract 273.15 from the Kelvin temperature, multiply by \\( \\dfrac{9}{5} \\), then add 32. For example, \\( (300\\,K - 273.15) \\times \\dfrac{9}{5} + 32 \\approx 80.33\\,°F \\)."
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"@type": "Question",
"name": "What is the formula for converting Kelvin to Fahrenheit?",
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"text": "The formula is: \\( \\text{Fahrenheit} = (\\text{Kelvin} - 273.15) \\times \\dfrac{9}{5} + 32 \\)."
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"name": "Is 273.15 Kelvin equal to 32 degrees Fahrenheit?",
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"text": "Yes, 273.15\\,K is equivalent to 32\\,°F, the freezing point of water."
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"acceptedAnswer": {
"@type": "Answer",
"text": "Subtract 32 from the Fahrenheit temperature, multiply by \\( \\dfrac{5}{9} \\), then add 273.15. The formula is: \\( \\text{Kelvin} = (\\text{Fahrenheit} - 32) \\times \\dfrac{5}{9} + 273.15 \\)."
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"@type": "Question",
"name": "Why do we use 273.15 in the conversion between Kelvin and Fahrenheit?",
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"@type": "Answer",
"text": "Because 0\\,K corresponds to absolute zero, and 273.15 adjusts for the difference between Kelvin and Celsius before converting to Fahrenheit."
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"@type": "Question",
"name": "How many degrees Fahrenheit are in 310 Kelvin?",
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"text": "\\( (310\\,K - 273.15) \\times \\dfrac{9}{5} + 32 \\approx 98.6\\,°F \\)."
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"table1n": "<h2><span class=\"x\">Kelvin</span> to <span class=\"y\">Fahrenheit</span> Conversion Table</h2><p>The following table gives some of the most used conversions from Kelvin to Fahrenheit.</p><table><thead><tr><th scope=\"column\" role=\"columnheader\">Kelvin (<span class=\"unit\">K</span>)</th><th scope=\"column\" role=\"columnheader\">Fahrenheit (<span class=\"unit\">°F</span>)</th><tr></thead><tbody><tr><td>0 <span class=\"unit\">K</span></td><td>-459<span>.67</span> <span class=\"unit\">°F</span></td></tr><tr><td>1 <span class=\"unit\">K</span></td><td>-457<span>.87</span> <span class=\"unit\">°F</span></td></tr><tr><td>2 <span class=\"unit\">K</span></td><td>-456<span>.07</span> <span class=\"unit\">°F</span></td></tr><tr><td>3 <span class=\"unit\">K</span></td><td>-454<span>.27</span> <span class=\"unit\">°F</span></td></tr><tr><td>4 <span class=\"unit\">K</span></td><td>-452<span>.47</span> <span class=\"unit\">°F</span></td></tr><tr><td>5 <span class=\"unit\">K</span></td><td>-450<span>.67</span> <span class=\"unit\">°F</span></td></tr><tr><td>6 <span class=\"unit\">K</span></td><td>-448<span>.87</span> <span class=\"unit\">°F</span></td></tr><tr><td>7 <span class=\"unit\">K</span></td><td>-447<span>.07</span> <span class=\"unit\">°F</span></td></tr><tr><td>8 <span class=\"unit\">K</span></td><td>-445<span>.27</span> <span class=\"unit\">°F</span></td></tr><tr><td>9 <span class=\"unit\">K</span></td><td>-443<span>.47</span> <span class=\"unit\">°F</span></td></tr><tr><td>10 <span class=\"unit\">K</span></td><td>-441<span>.67</span> <span class=\"unit\">°F</span></td></tr><tr><td>20 <span class=\"unit\">K</span></td><td>-423<span>.67</span> <span class=\"unit\">°F</span></td></tr><tr><td>50 <span class=\"unit\">K</span></td><td>-369<span>.67</span> <span class=\"unit\">°F</span></td></tr><tr><td>100 <span class=\"unit\">K</span></td><td>-279<span>.67</span> <span class=\"unit\">°F</span></td></tr><tr><td>1000 <span class=\"unit\">K</span></td><td>1340<span>.33</span> <span class=\"unit\">°F</span></td></tr></table>",
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[
"celsius",
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"°C"
],
[
"fahrenheit",
"Fahrenheit",
"°F"
],
[
"kelvin",
"Kelvin",
"K"
],
[
"newton",
"Newton",
"°N"
],
[
"delisle",
"Delisle",
"°De"
],
[
"rankine",
"Rankine",
"°R"
],
[
"reaumur",
"Réaumur",
"°Ré"
],
[
"romer",
"Rømer",
"°Rø"
]
],
"y_long_desc": "Fahrenheit is a temperature scale proposed by the German physicist Daniel Gabriel Fahrenheit. On the Fahrenheit scale, the freezing point of water is 32 degrees, and the boiling point is 212 degrees under standard atmospheric pressure. The Fahrenheit scale is commonly used in the United States and some other countries, especially for weather reporting and everyday temperature measurements.",
"x_long_desc": "The Kelvin scale is an absolute temperature scale named after the Scottish physicist William Thomson, 1st Baron Kelvin. It is commonly used in scientific and engineering applications where an absolute temperature reference is required. The Kelvin scale starts at absolute zero, the point at which all molecular motion ceases. The freezing point of water on the Kelvin scale is 273.15 K, and the boiling point is 373.15 K."
}