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Temperature Converter

100% Free

Convert between Celsius, Fahrenheit, and Kelvin instantly with one input.

C / F / K
All at Once
Quick Presets
Client-Side

Quick Presets

Converted Values

Celsius (°C)
100°C
Fahrenheit (°F)
212°F
Kelvin (K)
373.15K

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<iframe
  src="https://tools.town/embed/temperature-converter/"
  width="100%"
  height="600"
  style="border:none; border-radius:12px;"
  loading="lazy"
  title="Temperature Converter">
</iframe>

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How to Use

  1. 1 Enter the temperature value you want to convert
  2. 2 Select the unit you are converting from — Celsius, Fahrenheit, or Kelvin
  3. 3 All three converted values appear simultaneously in the results panel
  4. 4 Use quick presets — Absolute Zero, Water Freezes, Body Temp, Water Boils — for common reference points

Features

  • Converts among all three temperature scales simultaneously
  • Quick preset buttons for absolute zero, freezing, body temperature, and boiling
  • Active unit highlighted to avoid confusion
  • Handles negative values and decimals correctly
  • Accurate formulas: exact integer offsets for C/F/K conversions
  • 100% browser-based — works offline

Why it Matters

Temperature scales appear in science, cooking, medicine, and weather forecasting. Getting the conversion wrong can mean a ruined recipe, a misread fever, or a failed science experiment. This tool converts all three scales at once so you always have the full picture.

★★★★★

Use Cases

Science & Education

Convert Kelvin to Celsius for chemistry or physics problems

Cooking & Recipes

Convert oven temperatures between Celsius and Fahrenheit

Medicine & Health

Convert body temperature readings between scales

Travel & Weather

Understand local weather forecasts in an unfamiliar scale

Frequently Asked Questions

What is the formula for Celsius to Fahrenheit?
°F = (°C × 9/5) + 32. So 100°C = 212°F.
What is the formula for Celsius to Kelvin?
K = °C + 273.15. So 0°C = 273.15 K.
What is absolute zero?
Absolute zero is −273.15°C, −459.67°F, or 0 K — the lowest theoretically possible temperature.
Can I enter negative temperatures?
Yes. Negative Celsius and Fahrenheit values are fully supported. Kelvin cannot go below 0.

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