Unit Converters

Temperature Converter

Type any temperature in Celsius, Fahrenheit, Kelvin, or Rankine and see all other scales update instantly. Handles negative values, freezing points, and absolute zero correctly.

All units update live as you type No sign-up required Browser-only — works offline

Temperature

Type in any field — all other units update instantly

Features

  • Celsius, Fahrenheit, Kelvin, and Rankine
  • Live conversion as you type — no button needed
  • Handles negative values and decimals
  • Shows freezing (0 °C), boiling (100 °C), absolute zero context
  • Precise formulas — not approximate
  • Browser-only, works offline

How to use it

  1. Click the input field next to any temperature scale.
  2. Type your temperature value.
  3. All other scales update instantly.
  4. Negative values and decimals are fully supported.

Use cases

  • Converting Fahrenheit to Celsius for international recipes
  • Scientific calculations requiring Kelvin
  • Body temperature conversion for travel
  • Oven temperature conversion for baking

Limitations

  • Browser processing depends on available device memory for very large inputs.
  • Tool-specific limits based on file format or browser support are noted on each tool page.
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Questions & answers

Frequently asked

What is absolute zero in Celsius?

−273.15 °C (0 Kelvin, or −459.67 °F). Type 0 in the Kelvin field to see all equivalents.

How is Rankine different from Kelvin?

Rankine is the absolute temperature scale used with Fahrenheit — 0 °R = 0 K, but 1 °R = 1 °F increment rather than 1 °C.