Temperature Conversion Online - Free Web Utility | VibeTool
Temperature Conversion
Convert temperature units instantly between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine
Popular Presets:
(100°C × 9/5) + 32 = 212 °F
Equivalent Temperature Across All Standard Scales
Scale Name
Symbol
Equivalent Temperature
About Temperature Conversion
Temperature is an objective physical property that expresses the hotness or coldness of matter, reflecting the average kinetic energy of its constituent atoms and molecules. Unlike linear units of length or mass where zero corresponds to non-existence, temperature scales have different zero reference points: Celsius benchmarks zero at the freezing point of water, Fahrenheit at a brine mixture's freezing point, and Kelvin at absolute zero (the cessation of all thermal motion).
Major Temperature Scales Explained
Celsius (°C): Used by the vast majority of the world for daily weather, medical diagnostics, and cooking. Defined such that 0°C is the freezing point of water and 100°C is the boiling point at 1 atmosphere of pressure.
Fahrenheit (°F): Used primarily in the United States and its territories. Water freezes at 32°F and boils at 212°F, creating a 180-degree interval between the two reference states.
Kelvin (K): The official SI base unit of thermodynamic temperature. 0 K represents absolute zero (−273.15°C), where particle entropy and kinetic activity reach their theoretical minimum.
Rankine (°R): An absolute temperature scale that uses Fahrenheit degrees rather than Celsius increments, where 0 °R equals absolute zero (−459.67°F). Commonly used in American aerospace and thermodynamics engineering.
Exact 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 Kelvin:K = (°F − 32) × 5/9 + 273.15
Frequently Asked Questions (FAQ)
At what temperature are Celsius and Fahrenheit equal?
Celsius and Fahrenheit intersect at exactly −40° (meaning −40°C is identical to −40°F).
What is normal human body temperature in Celsius and Fahrenheit?
Standard average human body temperature is approximately 37°C or 98.6°F.
What is room temperature in °C and °F?
Comfortable indoor room temperature is generally considered to be 20°C to 22°C, which corresponds to approximately 68°F to 72°F.
Is this Temperature Conversion tool free?
Yes, our Temperature Conversion calculator is 100% free with unlimited real-time calculations. It works instantaneously across desktop, phone, and tablet browsers.
