Temperature Converter 2026 | Celsius ↔ Fahrenheit ↔ Kelvin | Global Tool

A Temperature Converter helps you convert between temperature units such as Celsius (°C), Fahrenheit (°F), and Kelvin (K). It is useful for weather comparisons, cooking recipes, scientific calculations, engineering, travel planning, and global measurement understanding.

Celsius (°C) is used in most countries and is based on water freezing at 0°C and boiling at 100°C. Fahrenheit (°F) is mainly used in the USA and a few other regions, where water freezes at 32°F and boils at 212°F. A temperature converter helps you compare values across international systems, especially in weather reports and recipes.

To convert Celsius (°C) to Fahrenheit (°F), use the formula: °F = (°C × 9/5) + 32. Example: 25°C = 77°F. This is one of the most searched conversions worldwide for weather and travel.

To convert Fahrenheit (°F) to Celsius (°C), use the formula: °C = (°F − 32) × 5/9. Example: 98.6°F ≈ 37°C. This is commonly used for body temperature and international weather understanding.

To convert Celsius (°C) to Kelvin (K), use: K = °C + 273.15. Example: 0°C = 273.15 K. Kelvin is widely used in science and engineering because it starts at absolute zero.

To convert Kelvin (K) to Celsius (°C), use: °C = K − 273.15. Example: 300 K ≈ 26.85°C. Kelvin conversions are common in physics, chemistry, and scientific research.

Kelvin (K) is the SI unit of temperature and is used mainly in science and engineering. Unlike Celsius and Fahrenheit, Kelvin does not use the degree symbol (°). Kelvin starts at absolute zero (0 K), which represents the lowest possible temperature. This makes Kelvin essential in thermodynamics and scientific calculations.

Celsius and Fahrenheit are equal at -40°. That means -40°C = -40°F. This is a well-known reference point and helps verify conversions.

Yes. This converter uses standard international temperature conversion formulas for Celsius, Fahrenheit, and Kelvin. Results are accurate for daily use (weather, cooking, travel) and educational/scientific reference. For high-precision lab work, always follow official rounding requirements.

Yes. Temperature conversion is universal and this tool is suitable globally for users in India, USA, UK, Canada, Australia, UAE, Europe and other regions. It is especially useful when comparing Celsius-based countries with Fahrenheit-based regions like the USA.