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MonoCalc

Temperature Converter

Enter a numeric value (decimals and negative values supported)

About the tool

🌡️ Temperature Converter – Convert Between Celsius, Fahrenheit, and Kelvin

The Temperature Converter is a versatile tool that allows you to quickly and accurately convert temperature values between Celsius (°C), Fahrenheit (°F), and Kelvin (K). Whether you're working on scientific calculations, cooking recipes from different regions, or simply trying to understand weather forecasts from around the world, this tool provides instant conversions with customizable precision.

Our converter features an intuitive interface with options to adjust decimal precision, copy results to clipboard, and even visualize temperature relationships through an interactive thermometer graphic.

📘 Understanding Temperature Scales

Temperature is a physical quantity that expresses hot and cold. It is measured with a thermometer calibrated in one or more temperature scales. The three most commonly used temperature scales are:

Celsius (°C)

The Celsius scale, also known as the centigrade scale, is used by most countries around the world. On this scale:

  • Water freezes at 0°C and boils at 100°C (at standard atmospheric pressure)
  • Room temperature is typically around 20-25°C
  • Normal human body temperature is approximately 37°C

Fahrenheit (°F)

The Fahrenheit scale is primarily used in the United States and a few other countries. On this scale:

  • Water freezes at 32°F and boils at 212°F (at standard atmospheric pressure)
  • Room temperature is typically around 68-77°F
  • Normal human body temperature is approximately 98.6°F

Kelvin (K)

The Kelvin scale is the SI base unit of temperature and is used primarily in scientific contexts. It's an absolute temperature scale, meaning:

  • 0K is absolute zero (-273.15°C or -459.67°F), the theoretical absence of all thermal energy
  • Water freezes at 273.15K and boils at 373.15K (at standard atmospheric pressure)
  • The Kelvin scale uses the same increment size as Celsius (a one-degree change in Celsius equals a one-kelvin change)
  • Unlike Celsius and Fahrenheit, Kelvin doesn't use the degree symbol (°)

⚙️ Conversion Formulas

Our Temperature Converter uses these standard formulas for accurate conversions:

  • Celsius to Fahrenheit: °F = (°C × 9/5) + 32
  • Fahrenheit to Celsius: °C = (°F - 32) × 5/9
  • Celsius to Kelvin: K = °C + 273.15
  • Kelvin to Celsius: °C = K - 273.15
  • Fahrenheit to Kelvin: K = (°F - 32) × 5/9 + 273.15
  • Kelvin to Fahrenheit: °F = (K - 273.15) × 9/5 + 32

🧩 Key Features of Our Temperature Converter

  • Multiple Unit Support: Convert between Celsius, Fahrenheit, and Kelvin with ease
  • Customizable Precision: Adjust decimal places (0-6) for your specific needs
  • Auto-Convert Option: See results instantly as you type
  • Unit Swapping: Quickly reverse input and output units with one click
  • Copy to Clipboard: Easily copy conversion results for use elsewhere
  • Visual Thermometer: See a graphical representation of the temperature
  • Side-by-Side Comparison: View all three temperature scales simultaneously
  • Responsive Design: Works perfectly on desktop and mobile devices
  • Accessibility Features: Fully keyboard navigable and screen reader friendly

🌟 Practical Applications

Temperature conversion is useful in many real-world scenarios:

  • Cooking and Baking: Convert oven temperatures between Fahrenheit and Celsius for international recipes
  • Weather and Travel: Understand temperature forecasts when traveling to countries using different scales
  • Science and Education: Convert between scales for scientific calculations and experiments
  • Healthcare: Convert body temperature readings between different scales
  • Engineering: Ensure accurate temperature specifications across different measurement systems

🔄 How to Use the Temperature Converter

  1. Enter a temperature value in the input field
  2. Select the input temperature unit (Celsius, Fahrenheit, or Kelvin)
  3. Select the desired output unit
  4. Click the "Convert" button or toggle auto-convert to see the result instantly
  5. Adjust decimal places for precision using the dropdown
  6. Use the "Swap Units" button to reverse the conversion direction
  7. Click "Copy" to copy the result to your clipboard
  8. Toggle "Show All Units" to view the temperature in all three scales simultaneously

✅ Interesting Temperature Facts

  • The Celsius scale was originally defined with 0° as the boiling point of water and 100° as the freezing point, the opposite of today's standard. It was reversed in 1743.
  • The Fahrenheit scale was created by Daniel Gabriel Fahrenheit in 1724. He set 0°F as the temperature of a mixture of ice, water, and ammonium chloride, and 96°F as approximate human body temperature.
  • The lowest natural temperature ever recorded on Earth was -89.2°C (-128.6°F) at the Soviet Vostok Station in Antarctica on July 21, 1983.
  • The highest natural temperature ever recorded on Earth was 56.7°C (134.1°F) in Death Valley, California, on July 10, 1913.
  • Absolute zero (0K) is the theoretical temperature at which all molecular motion ceases. It's impossible to reach absolute zero, though scientists have come extremely close (within a few billionths of a degree).
  • The Kelvin scale is named after the Belfast-born physicist and engineer William Thomson, 1st Baron Kelvin, who proposed it in 1848.

🔍 Temperature Conversion Examples

  • Room temperature: 20°C = 68°F = 293.15K
  • Freezing point of water: 0°C = 32°F = 273.15K
  • Boiling point of water: 100°C = 212°F = 373.15K
  • Normal human body temperature: 37°C = 98.6°F = 310.15K
  • Absolute zero: -273.15°C = -459.67°F = 0K

Frequently Asked Questions

  • Is the Temperature Converter free ?

    Yes, Temperature Converter is totally free :)

  • Can i use the Temperature Converter offline ?

    Yes, you can install the webapp as PWA.

  • Is it safe to use Temperature Converter ?

    Yes, any data related to Temperature Converter only stored in your browser(if storage required). You can simply clear browser cache to clear all the stored data. We do not store any data on server.

  • What is the Temperature Converter tool?

    The Temperature Converter is a versatile tool that allows you to convert temperatures between Celsius (°C), Fahrenheit (°F), and Kelvin (K) units. It provides accurate conversions with customizable decimal precision, copy-to-clipboard functionality, and visual aids to help understand temperature relationships.

  • How do I use the Temperature Converter?

    To use the Temperature Converter: 1) Enter a temperature value in the input field, 2) Select the input temperature unit (Celsius, Fahrenheit, or Kelvin), 3) Select the desired output unit, 4) Click the 'Convert' button or toggle auto-convert to see the result instantly. You can also adjust decimal places for precision, swap input and output units, and copy results to clipboard.

  • What are the formulas used for temperature conversion?

    The Temperature Converter uses these standard formulas: Celsius to Fahrenheit: °F = (°C × 9/5) + 32, Fahrenheit to Celsius: °C = (°F - 32) × 5/9, Celsius to Kelvin: K = °C + 273.15, Kelvin to Celsius: °C = K - 273.15, Fahrenheit to Kelvin: K = (°F - 32) × 5/9 + 273.15, Kelvin to Fahrenheit: °F = (K - 273.15) × 9/5 + 32.

  • What's the difference between Celsius, Fahrenheit, and Kelvin?

    Celsius (°C) is used in most countries worldwide, with water freezing at 0°C and boiling at 100°C at standard pressure. Fahrenheit (°F) is primarily used in the US, with water freezing at 32°F and boiling at 212°F. Kelvin (K) is the SI unit of temperature used in scientific contexts, with 0K being absolute zero (the theoretical absence of all thermal energy). Kelvin doesn't use the degree symbol and has the same increment size as Celsius.

  • Why do scientists use Kelvin for temperature measurements?

    Scientists use the Kelvin scale because it starts at absolute zero (the theoretical lowest possible temperature where particles have minimal motion), making it a true ratio scale with no negative values. This makes it ideal for scientific calculations and formulas. The Kelvin scale uses the same increment size as Celsius but offset by 273.15, allowing for straightforward conversion between scientific and everyday temperature measurements.