Unit Converters

Fahrenheit to Celsius

Convert values using our premium, client-side Fahrenheit to Celsius online tool.

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Everything is processed entirely locally in your browser. No data is sent to our servers.

What is the Fahrenheit to Celsius?

This tool allows you to convert between different units using standard parameters.

How to Use

  1. Enter the input value into the provided field.
  2. Select the starting unit and target unit from the dropdown lists.
  3. Read the calculated output instantly in real time.

Common Use Cases

  • Engineering calculations
  • Academic physics and mathematics research
  • Everyday unit conversions

Key Benefits

  • 100% client-side - no server communication
  • Extremely fast and responsive
  • Clean UI styled beautifully

Frequently Asked Questions

What is the formula to convert Fahrenheit to Celsius?

Subtract 32 from the Fahrenheit value, then multiply by 5/9. Formula: °C = (°F - 32) × 5/9.

What temperature is equal in Fahrenheit and Celsius?

-40 degrees is the unique point where both Fahrenheit and Celsius scales read the exact same temperature (-40°F = -40°C).

How do I convert 100°F to Celsius?

Subtract 32 (68) and multiply by 5/9 (approximately 0.555). 100°F is equal to 37.78°C.

What temperature is normal human body heat in Celsius?

Normal body temperature is approximately 98.6°F, which is equal to 37°C.

Why is the Fahrenheit scale still used?

The Fahrenheit scale is used primarily in the United States and its territories for daily weather reports and household temperatures. Most other countries use Celsius.

Is this tool free?

Yes, it is completely free to use online on any device.

Are my inputs kept private?

Yes, all calculations are performed locally in your browser.

Can I convert temperatures below absolute zero?

No, the lowest physical temperature possible is absolute zero, which is -459.67°F (-273.15°C).

What is the freezing point of water in Celsius and Fahrenheit?

Water freezes at 0°C, which is exactly equal to 32°F.

What is the boiling point of water in Celsius and Fahrenheit?

Water boils at 100°C under standard atmospheric pressure, which is exactly equal to 212°F.

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