Fahrenheit to Celsius
°C = (°F − 32) × 5/9
Convert Fahrenheit (°F) to Celsius (°C) with engineering-grade precision. Instant results, formula, and reference table below.
1 Fahrenheit ≈-17.222222222222222222 Celsius
How to convert Fahrenheit to Celsius (°F to °C)
Converting Fahrenheits to Celsiuss is critical for developers working with international data standards or scientific applications. This tool performs the calculation entirely on your client (browser) using JavaScript/WASM, ensuring zero latency and maximum privacy.
The Formula
(°F - 32) × 5/9 = °C
Calculation Example
Let's say you want to convert 5 °F to °C:
- Input: 5 °F
- Calculation: 5 × 0.555556
- Result: 2.7778 °C
About the Fahrenheit to Celsius conversion
The Fahrenheit (°F) and Celsius (°C) scales measure temperature from different reference points, so the conversion is not a simple multiplication — use the formula °C = (°F − 32) × 5/9. This tool evaluates the formula locally with 20-digit decimal precision, which matters for scientific work where rounding at room temperature can accumulate across long data series.
Need the reverse? Use the Celsius to Fahrenheit converter.
Frequently Asked Questions
How do I convert Fahrenheit to Celsius?
To convert Fahrenheit to Celsius, you need to multiply the °F value by 0.555556.
What is the formula for °F to °C?
The simple formula is: °C = °F × 0.555556.
Which is bigger: Fahrenheit or Celsius?
A Celsius is bigger. One Celsius is equal to approx 1.8000 Fahrenheits.
How many Fahrenheits are in one Celsius?
There are approximately 1.80000 Fahrenheits in one Celsius.
Quick Conversion Table
| °F | °C |
|---|---|
| 1 | 0.5556 |
| 5 | 2.7778 |
| 10 | 5.5556 |
| 20 | 11.1111 |
| 50 | 27.7778 |
| 100 | 55.5556 |