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Free Temperature Converter

Convert temperatures between Celsius (°C), Fahrenheit (°F), and Kelvin (K) instantly. Precise calculations for cooking, science, weather, and daily use.

Last Updated: 15 Jan 2026

Celsius (°C)

Water freezes at 0°C

Fahrenheit (°F)

Water freezes at 32°F

Kelvin (K)

Absolute zero is 0K

Quick Adjust (Celsius)

-50°C0°C (Freeze)20°C (Room)37°C (Body)100°C (Boil)120°C

What is a Temperature Converter?

A temperature converter is an essential tool that converts temperatures between different measurement scales: Celsius (°C), Fahrenheit (°F), and Kelvin (K). Whether you're following a recipe, checking the weather, conducting scientific experiments, or traveling internationally, temperature conversion is a common need that this tool simplifies instantly.

Understanding temperature conversions is crucial for cooking, scientific work, weather interpretation, and daily life. Different countries and contexts use different temperature scales, making conversion tools essential for accurate measurements and clear communication. Our free temperature converter provides instant, accurate conversions between all major temperature scales.

Why Use Our Free Temperature Converter?

Instant Conversions

Convert between Celsius, Fahrenheit, and Kelvin instantly with precise calculations. No manual math or formula memorization required.

Accurate Results

Uses standard conversion formulas used in science, engineering, and everyday applications. Results are accurate to multiple decimal places.

Multiple Scales

Supports all major temperature scales: Celsius (most common worldwide), Fahrenheit (US), and Kelvin (scientific). Convert between any combination instantly.

Common Use Cases for Temperature Converter

For Cooking & Baking

Recipe Conversion
Convert oven temperatures from Fahrenheit to Celsius (or vice versa) when following international recipes. Ensure perfect baking temperatures.
Cooking Temperatures
Check safe cooking temperatures for meat, poultry, and fish. Convert between scales to ensure food safety regardless of your thermometer's scale.
Candy Making
Convert sugar syrup temperatures for candy making. Precise temperature control is critical for fudge, caramel, and other confections.

For Science & Daily Life

Weather Understanding
Convert weather temperatures when traveling or reading international weather reports. Understand temperatures in familiar scales.
Scientific Research
Convert temperatures for chemistry, physics, and engineering calculations. Work with Kelvin for absolute temperature measurements.
Home & Garden
Convert room temperatures, water temperatures, and garden conditions. Understand optimal temperatures for plants and comfort.

How Temperature Conversion Works

Enter Temperature

Type the temperature value you want to convert into the input field. You can enter whole numbers or decimals for precise conversions.

Select Source Scale

Choose the temperature scale of your input (Celsius, Fahrenheit, or Kelvin). The converter recognizes which scale you're using automatically.

View Converted Values

Instantly see the temperature converted to all other scales displayed simultaneously. All conversions update in real-time as you type.

Use Converted Temperature

Copy the converted values for use in recipes, scientific calculations, weather reports, or any application requiring temperature conversion.

Temperature Scales Explained

Celsius (°C)

Also known as Centigrade. Based on the freezing point (0°) and boiling point (100°) of water at sea level. Used by most of the world and in scientific contexts.

Freezing: 0°C

Boiling: 100°C

Room Temp: ~20-25°C

Fahrenheit (°F)

Used primarily in the United States, Belize, and a few Caribbean nations. Water freezes at 32° and boils at 212° at sea level.

Freezing: 32°F

Boiling: 212°F

Room Temp: ~68-77°F

Kelvin (K)

The SI unit for thermodynamic temperature. 0K is absolute zero, where all thermal motion ceases. No degree symbol is used. Primarily used in scientific contexts.

Absolute Zero: 0K

Freezing: 273.15K

Boiling: 373.15K

Temperature Conversion Formulas

Celsius to Fahrenheit°F = (°C × 9/5) + 32

Fahrenheit to Celsius°C = (°F − 32) × 5/9

Celsius to KelvinK = °C + 273.15

Kelvin to Celsius°C = K − 273.15

Fahrenheit to KelvinK = (°F + 459.67) × 5/9

Kelvin to Fahrenheit°F = (K × 9/5) − 459.67

Common Cooking Temperatures

Water Boiling: 212°F / 100°C
Baking (Oven): 350°F / 177°C
Safe Chicken: 165°F / 74°C
Medium-Rare Steak: 145°F / 63°C
Water Freezing: 32°F / 0°C

Weather Temperature Reference

Hot Day: 86°F / 30°C
Room Temperature: 72°F / 22°C
Cool Day: 50°F / 10°C
Freezing: 32°F / 0°C
Very Cold: 14°F / -10°C

Quick Reference: Common Temperatures

Scientific

Absolute Zero: -459.67°F / -273.15°C / 0K
Liquid Nitrogen: -320°F / -196°C
Dry Ice: -109°F / -78°C
Human Body: 98.6°F / 37°C

Cooking

Slow Cooker Low: 200°F / 93°C
Slow Cooker High: 300°F / 149°C
Deep Frying: 350-375°F / 177-191°C
Broiling: 500°F+ / 260°C+

Extreme

Hottest Recorded: 134°F / 56.7°C
Coldest Recorded: -128.6°F / -89.2°C
Sun Surface: ~10,000°F / ~5,500°C
Core of Sun: ~27M°F / ~15M°C

Frequently Asked Questions

How do I convert Celsius to Fahrenheit?

To convert Celsius to Fahrenheit, multiply the Celsius temperature by 9/5 and add 32. Formula: °F = (°C × 9/5) + 32. For example, 25°C = (25 × 9/5) + 32 = 77°F. Our converter does this automatically.

How do I convert Fahrenheit to Celsius?

To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit temperature and multiply by 5/9. Formula: °C = (°F − 32) × 5/9. For example, 77°F = (77 − 32) × 5/9 = 25°C. This is the reverse of the Celsius to Fahrenheit conversion.

What is Kelvin and how is it different?

Kelvin is the SI unit for thermodynamic temperature. 0K is absolute zero (the coldest possible temperature, where all molecular motion stops). To convert Celsius to Kelvin, add 273.15. Kelvin doesn't use a degree symbol. Formula: K = °C + 273.15. Kelvin is used primarily in scientific contexts.

What temperature scale is used where?

Celsius is used by most countries worldwide and in scientific contexts. Fahrenheit is used primarily in the United States, Belize, and a few Caribbean nations. Kelvin is used in scientific and engineering applications worldwide, especially in physics and chemistry.

What are common temperature conversions for cooking?

Common cooking conversions: 350°F = 177°C (baking), 212°F = 100°C (water boiling), 32°F = 0°C (water freezing), 165°F = 74°C (safe chicken temperature), 145°F = 63°C (medium-rare steak). Our converter handles all cooking temperature conversions instantly.

Is this temperature converter accurate?

Yes, our temperature converter uses precise conversion formulas and provides accurate results. All calculations follow standard temperature conversion formulas used in science, engineering, and everyday applications. Results are accurate to multiple decimal places.