Temperature Converter

Convert temperatures between Celsius, Fahrenheit, Kelvin and Rankine — with the formula for each conversion.

FreeNo sign-upRuns in your browserMobile-friendly

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What does the Temperature Converter do?

Temperature scales do not just scale; they also have different zero points, so a simple multiplication does not work. The converter uses the standard formulas — for example °F = °C × 9/5 + 32 and K = °C + 273.15 — and shows the formula used.

It warns if a value is below absolute zero (0 K, −273.15 °C), which is physically impossible.

How to use the Temperature Converter

  1. Enter a temperature.
  2. Choose the scale to convert from and to.
  3. Read the result and the formula.

Examples

Body temperature

37 °C = 98.6 °F.

Weather

45 °C in Jacobabad = 113 °F.

Oven

180 °C = 356 °F.

Common use cases

  • Weather and travel
  • Cooking and baking
  • Science and engineering
  • Medical thermometers

Features and benefits

  • Private by design — your data is processed on your device and never uploaded.
  • Free with no account, no watermark and no usage limits.
  • Works on phones, tablets and desktops in any modern browser.

Limitations to know

  • Results are rounded to four decimal places.

Frequently asked questions

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32.

When are Celsius and Fahrenheit equal?

At −40 degrees.

What is absolute zero?

0 K, or −273.15 °C — the lowest possible temperature.

Embed this tool on your website

Add the free Temperature Converter to your blog or website. Paste the code into your page’s HTML; the tool runs in your visitors’ browsers and stays up to date automatically. Please keep the credit line below the tool.

Free to use on any website. The tool runs inside an iframe served from viptools.pk; nothing your visitors type is sent to your site or ours. Preview the embedded version.

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