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Temperature Unit Measurement Converter
Convert between Celsius, Fahrenheit, Kelvin and Rankine temperature unit measurements using precise scientific formulas.
1 °C = 33.8 °F
Visual Scale Comparison
1 Celsius°C
1 Fahrenheit°F
A single Celsius is about 1 times smaller than a Fahrenheit.
How it works
Formula
(value × 9/5) + 32To convert from Celsius to Fahrenheit, use the conversion factor of 1.
Fun Fact
"Originally 0 was boiling and 100 was freezing, reversed by Carl Linnaeus."
Common Questions About Temperature Unit Measurement Converter
What is the unit of measurement for temperature? +
The SI unit of measurement for temperature is the Kelvin (K). In everyday use, Celsius (°C) is used in most countries while Fahrenheit (°F) is used in the United States. Absolute zero is 0 K, −273.15°C, or −459.67°F.
How do I convert Celsius to Fahrenheit? +
To convert Celsius to Fahrenheit use the formula: °F = (°C × 9/5) + 32. For example, 100°C = (100 × 9/5) + 32 = 212°F. To convert back: °C = (°F − 32) × 5/9.
What is absolute zero? +
Absolute zero is the lowest possible temperature where all molecular motion stops. It equals 0 Kelvin, −273.15°C, or −459.67°F. It is a theoretical limit — no physical object has ever been cooled to exactly absolute zero.
What is the difference between Kelvin and Celsius? +
Kelvin and Celsius use the same scale size (1 K = 1°C difference) but different zero points. 0°C = 273.15 K. So to convert Celsius to Kelvin, add 273.15. Kelvin has no negative values since it starts at absolute zero.
Related Converters
Common Conversions
celsius to fahrenheit
(value × 9/5) + 32 fahrenheit to celsius
(value - 32) × 5/9 celsius to kelvin
value + 273.15