Is Temperature Converter free to use?

Yes, Temperature Converter is completely free. No subscription, no credit card, and no account required — ever.

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No account is needed. Temperature Converter works instantly in your browser — just open the page and start using it.

Is Temperature Converter safe? Does it store my data?

Temperature Converter processes your data locally in your browser. Nothing is sent to or stored on our servers.

How do I use Temperature Converter?

Open the tool, enter or paste your input, and your result appears instantly. Use the copy button to save it. The whole process takes under a minute.

Temperature Converter

Convert temperature between Celsius, Fahrenheit, Kelvin, and Rankine.

Convert Units

From:

To:

Result:

Instantly convert temperatures between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with our professional temperature converter.

What is Temperature Converter?

Temperature is a physical quantity that expresses hot and cold, measured with a thermometer. It represents the average kinetic energy of particles in a substance. Different temperature scales are used worldwide for various applications.

Understanding the Units

Celsius (°C)

A metric temperature scale where water freezes at 0°C and boils at 100°C at standard atmospheric pressure.

Common Uses: Everyday use worldwide (except USA), scientific measurements, weather forecasts

Fahrenheit (°F)

A temperature scale where water freezes at 32°F and boils at 212°F at standard atmospheric pressure.

Common Uses: United States, some Caribbean countries, weather reporting in USA

Kelvin (K)

The SI base unit of temperature. Zero Kelvin (absolute zero) is the lowest possible temperature.

Common Uses: Scientific research, physics, chemistry, astronomy

Rankine (°R)

An absolute temperature scale using Fahrenheit degrees. Zero Rankine is absolute zero.

Common Uses: Engineering applications in the United States, thermodynamics

Common Conversions

Room temperature: 20°C = 68°F = 293.15 K = 527.67°R
Human body temperature: 37°C = 98.6°F = 310.15 K = 558.27°R
Water freezing point: 0°C = 32°F = 273.15 K = 491.67°R
Water boiling point: 100°C = 212°F = 373.15 K = 671.67°R
Absolute zero: -273.15°C = -459.67°F = 0 K = 0°R

Conversion 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 Rankine: °R = °F + 459.67
Rankine to Fahrenheit: °F = °R - 459.67

Practical Examples

Cooking: Oven temperature 180°C = 356°F (common baking temperature)

Weather: A hot summer day might be 35°C = 95°F

Freezer: Typical freezer temperature -18°C = 0°F

Science: Liquid nitrogen boils at -196°C = -321°F = 77 K

When to Use Each Unit

Celsius: Daily life in most countries, scientific work, international communication

Fahrenheit: United States daily life, some industrial applications

Kelvin: Scientific research, physics, chemistry, absolute temperature measurements

Rankine: Engineering calculations in the US, thermodynamic analysis

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