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Convert Fahrenheit to Celsius (°F to °C)

Accurate in-browser conversion between degrees fahrenheit and degrees celsius. Includes live mathematical calculation, step-by-step conversion formula, and comprehensive conversion table.

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Quick Answer: 1 °F to °C

1 Fahrenheit (°F) equals -17.222222 Degrees Celsius (°C)

Standard Formula: °C = (°F - 32) × 5/9

°F
-17.222222
°C
Formula:°C = (°F - 32) × 5/9
Swap (°C to °F)

Quick Fahrenheit to Celsius reference table

Calculated reference ladder from 1 to 1,000 degrees fahrenheit.

Fahrenheit (°F)Celsius (°C)
1 °F-17.222222 °C
2 °F-16.666667 °C
5 °F-15 °C
10 °F-12.222222 °C
20 °F-6.666667 °C
25 °F-3.888889 °C
50 °F10 °C
100 °F37.777778 °C
250 °F121.111111 °C
500 °F260 °C
1,000 °F537.777778 °C

This converter runs entirely in your browser using local JavaScript arithmetic. Nothing you calculate is uploaded, logged, or sent to any server.

How to convert Degrees Fahrenheit to Degrees Celsius

To convert any quantity from degrees fahrenheit (°F) to degrees celsius (°C), use the conversion ratio of -17.222222. Multiplying your value in degrees fahrenheit by this multiplier directly provides the equivalent in degrees celsius without loss of mathematical precision.

Worked Example

Sample calculation: 10 degrees fahrenheit

10 × -17.222222 = -172.222222 °C

Why use OmniTools in-browser converters?

  • Zero Server Latency: All mathematical calculations occur instantaneously in your web browser.
  • 100% Private: No values, numbers, or inputs are tracked or transmitted over the network.
  • Instant Bi-directional Switching: Seamlessly swap between °F and °C with one click.

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