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温度変換ツール

摂氏、華氏、ケルビン間を即座に変換。一般的な基準点とすべての単位の比較が含まれています。

摂氏、華氏、ケルビンの温度スケール間の変換

結果
変換する値を入力してください
一般的な基準点
水の凝固点0°C = 32°F = 273.15K
体温37°C = 98.6°F = 310.15K
水の沸騰点100°C = 212°F = 373.15K
絶対零度-273.15°C = -459.67°F = 0K
公式: °F = °C × 9/5 + 32, K = °C + 273.15。水は0°C / 32°F / 273.15Kで凍ります。

How to Use This Tool

  1. 1

    Enter a temperature value

    Type the temperature you want to convert into the input field. Negative values are supported.

  2. 2

    Select the source scale

    Choose the temperature scale you are converting from: Celsius, Fahrenheit, or Kelvin.

  3. 3

    Choose the target scale

    Pick the scale to convert to, or use the swap button to reverse the direction instantly.

  4. 4

    Check common references

    Below the result, a reference table shows common temperature points (freezing, boiling, body temp, absolute zero) in all three scales.

Frequently Asked Questions

How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 (or 1.8) and add 32. For example, 100°C × 1.8 + 32 = 212°F.
What is absolute zero?
Absolute zero is the lowest possible temperature: 0 Kelvin, −273.15°C, or −459.67°F. At this point, molecular motion theoretically stops.
When should I use Kelvin?
Kelvin is the SI unit for temperature used in scientific contexts. It starts at absolute zero and uses the same increment size as Celsius.
What is normal human body temperature in Fahrenheit?
Normal body temperature is approximately 98.6°F (37°C or 310.15 K), though it can vary slightly from person to person.