80 degrees Fahrenheit is equal to approximately 26.6667 degrees Celsius.
To convert 80 Fahrenheit to Celsius, you subtract 32 from the Fahrenheit value, then multiply the result by 5/9. This formula adjusts the Fahrenheit scale to match the Celsius scale by accounting for the different starting points and increments between the two temperature units.
Conversion Tool
Result in celsius:
Conversion Formula
The formula for converting Fahrenheit to Celsius is: C = (F – 32) × 5/9. This works because the Fahrenheit scale starts at 32°F for the freezing point of water, while Celsius starts at 0°C. The difference between freezing points is 32 degrees Fahrenheit. Also, each degree Fahrenheit is smaller than a degree Celsius by a factor of 5/9.
Here’s how it works step-by-step for 80°F:
- Subtract 32 from 80: 80 – 32 = 48
- Multiply the result by 5/9: 48 × 5/9 = 48 × 0.5555… ≈ 26.6667
- The final result is about 26.6667°C
Conversion Example
Example converting 95°F to Celsius:
- Start with 95°F
- Subtract 32: 95 – 32 = 63
- Multiply by 5/9: 63 × 5/9 = 63 × 0.5555… ≈ 35
- So, 95°F equals approximately 35°C
Another example, converting 60°F:
- 60 – 32 = 28
- 28 × 5/9 ≈ 15.5556
- Result: about 15.56°C
One more, converting 100°F:
- 100 – 32 = 68
- 68 × 5/9 ≈ 37.7778
- Result: approximately 37.78°C
Conversion Chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 55.0 | 12.78 |
| 60.0 | 15.56 |
| 65.0 | 18.33 |
| 70.0 | 21.11 |
| 75.0 | 23.89 |
| 80.0 | 26.67 |
| 85.0 | 29.44 |
| 90.0 | 32.22 |
| 95.0 | 35.00 |
| 100.0 | 37.78 |
| 105.0 | 40.56 |
This chart helps you quickly find Celsius equivalents for Fahrenheit temperatures between 55°F and 105°F. You can use it to compare temperature ranges or to estimate Celsius values without a calculator.
Related Conversion Questions
- What is 80 degrees Fahrenheit in Celsius rounded to two decimals?
- How do I convert 80°F to Celsius manually?
- Is 80°F warm or cool in Celsius scale?
- What temperature in Celsius corresponds to 80 degrees Fahrenheit?
- How to convert 80 Fahrenheit to Celsius using a formula?
- What’s the Celsius equivalent of 80°F for cooking recipes?
- Does 80°F equal 26°C or 27°C?
Conversion Definitions
Fahrenheit: Fahrenheit is a temperature scale where water freezes at 32 degrees and boils at 212 degrees under standard conditions. It is mainly used in the United States and some Caribbean countries. The scale divides the range between freezing and boiling into 180 degrees.
Celsius: Celsius is a temperature scale where 0 degrees is the freezing point of water and 100 degrees is the boiling point at sea level. It’s widely used around the world for scientific and everyday temperature measurements. Celsius is based on the metric system.
Conversion FAQs
Why do we subtract 32 in the Fahrenheit to Celsius formula?
Because 32°F is the freezing point of water on the Fahrenheit scale, while 0°C is the freezing point on Celsius. Subtracting 32 shifts the Fahrenheit value down to align the zero point of the Celsius scale, so the temperatures match correctly before scaling.
Can I convert temperatures without a calculator?
Yes, you can estimate by subtracting 30 from the Fahrenheit value and then halving the result for a rough Celsius value. Though not exact, this method gives a quick approximation without needing precise calculation.
Why multiply by 5/9 instead of another fraction?
The factor 5/9 comes from the ratio between the size of one degree on each scale. Fahrenheit divides the freezing-to-boiling range into 180 increments, Celsius into 100. The fraction 5/9 converts the Fahrenheit increment size to the Celsius increment size.
Is the conversion reversible?
Yes, to convert Celsius back to Fahrenheit, multiply by 9/5 and add 32. This reverses the process of the subtraction and multiplication used converting Fahrenheit to Celsius.
Does this formula work for negative temperatures?
Yes, the formula works for any Fahrenheit value including negative numbers. The subtraction and multiplication still apply, and the result gives the correct Celsius equivalent even below freezing.