80°F is equivalent to approximately 26.67°C.
To convert 80 degrees Fahrenheit to Celsius, you subtract 32 from the Fahrenheit value, then multiply the result by 5/9. This formula adjusts for the difference in the starting points and scale increments between the two temperature units.
Conversion Tool
Result in c:
Conversion Formula
The formula to convert Fahrenheit (f) to Celsius (c) is: c = (f – 32) × 5/9. This formula works by first adjusting the Fahrenheit value by subtracting 32, which aligns the freezing points of water in both scales. Then, multiplying by 5/9 scales the Fahrenheit degree intervals to match Celsius intervals.
Example calculation for 80°F:
- Subtract 32: 80 – 32 = 48
- Multiply by 5/9: 48 × 5/9 = 26.666…
- Rounded result: 26.67°C
Conversion Example
- 70°F to Celsius:
- Subtract 32: 70 – 32 = 38
- Multiply by 5/9: 38 × 5/9 = 21.111…
- Result: approximately 21.11°C
- 95°F to Celsius:
- Subtract 32: 95 – 32 = 63
- Multiply by 5/9: 63 × 5/9 = 35
- Result: 35°C
- 60°F to Celsius:
- Subtract 32: 60 – 32 = 28
- Multiply by 5/9: 28 × 5/9 ≈ 15.555…
- Result: approximately 15.56°C
- 100°F to Celsius:
- Subtract 32: 100 – 32 = 68
- Multiply by 5/9: 68 × 5/9 ≈ 37.777…
- 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 |
The chart shows Fahrenheit values in the left column and their converted Celsius equivalents on the right. To find a Celsius value, locate the Fahrenheit temperature first and see the corresponding Celsius result. This helps quickly estimate temperature conversions without calculations.
Related Conversion Questions
- What is 80 degrees Fahrenheit in Celsius exactly?
- How do I convert 80°F to Celsius without a calculator?
- Is 80°F warm or cool when converted into Celsius?
- What formula should I use to convert 80 Fahrenheit to Celsius?
- How many Celsius degrees equals 80 Fahrenheit?
- Can I use a simple method to change 80°F to Celsius?
- Why does 80°F convert to 26.67°C and not a whole number?
Conversion Definitions
F (Fahrenheit): Fahrenheit is a temperature scale, named after Daniel Gabriel Fahrenheit, used mainly in the United States. Its freezing point of water is set at 32 degrees and boiling at 212 degrees, divided into 180 equal parts between them.
C (Celsius): Celsius is a metric temperature scale where 0 degrees represents the freezing point of water and 100 degrees the boiling point at sea level. It is widely used globally for scientific and everyday temperature measurements.
Conversion FAQs
Why subtract 32 in the Fahrenheit to Celsius conversion?
The 32 is subtracted because the Fahrenheit scale sets the freezing point of water at 32°F, not zero. Adjusting by 32 aligns the zero point of Celsius (freezing water) with the corresponding Fahrenheit temperature, allowing for accurate scaling between the two units.
Can I convert Fahrenheit to Celsius by only multiplying?
No, multiplying alone won’t work because Fahrenheit and Celsius scales start at different points. Fahrenheit uses 32°F as freezing point, Celsius at 0°C. The subtraction of 32 adjusts this baseline before scaling the temperature by 5/9.
Is the conversion formula different for negative temperatures?
The formula remains the same regardless of whether the temperature is positive or negative. You always subtract 32 then multiply by 5/9, which correctly converts any Fahrenheit value to Celsius.
Why does 80°F convert to a decimal Celsius value?
The numbers don’t always convert evenly because the scales have different increments. Since 5/9 is a fraction, many Fahrenheit values convert to Celsius with decimal results, like 26.67°C for 80°F.
Does altitude affect the Fahrenheit to Celsius conversion?
The conversion formula itself does not change with altitude, but the boiling and freezing points of water can vary slightly with atmospheric pressure. The formula assumes standard atmospheric conditions.