Fahrenheit to Celsius Converter

Convert fahrenheit to celsius instantly.

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Common temperature units

Fahrenheit (°F)

Definition: Fahrenheit (symbol: °F) is a temperature scale where the freezing point of water is 32 °F and the boiling point is 212 °F at standard atmospheric pressure, a range of 180 degrees compared to 100 degrees in Celsius.

History/origin: Developed by German physicist Daniel Gabriel Fahrenheit in 1724. He based his scale on three reference points: the freezing point of a brine solution (0 °F), the freezing point of water (32 °F), and human body temperature (roughly 96 °F in his original scale).

Current use: Fahrenheit remains the official temperature scale in the United States for weather, cooking, and everyday use. It is also used in some Caribbean countries. Most other nations switched to Celsius during metrication in the 20th century.

Celsius (°C)

Definition: The Celsius scale is a metric temperature scale tied to water's phase changes: water freezes at 0 °C and boils at 100 °C under standard pressure.

History/origin: Anders Celsius introduced the scale in the 18th century, but the numbering direction used today came after later scientists flipped his original boiling-to-freezing arrangement.

Current use: °C appears in global weather reports, ovens and recipes outside the US, medical readings, lab work, climate data, appliances, and everyday temperature settings.

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