80 degrees Fahrenheit is equal to 26.6667 degrees Celsius.
To convert 80°F to Celsius, you subtract 32 from the Fahrenheit temperature, then multiply by 5/9. This converts the Fahrenheit scale value into the Celsius scale equivalent.
Conversion Tool
Result in celsius:
Conversion Formula
The formula for converting Fahrenheit to Celsius is:
C = (F – 32) × 5/9. This means you first subtract 32 from the Fahrenheit temperature which adjusts the zero points between the two scales. Then, multiply the result by 5/9 to scale the temperature correctly because Fahrenheit degrees are smaller.
Why it works: Fahrenheit and Celsius scales have different zero points and increments. Subtracting 32 aligns the freezing point of water, then multiplying by 5/9 adjusts for the size difference of one degree in Celsius compared to Fahrenheit.
Example calculation for 80°F:
Step 1: 80 – 32 = 48
Step 2: 48 × 5 = 240
Step 3: 240 ÷ 9 = 26.6667°C
Conversion Example
- Convert 95°F to Celsius:
- Subtract 32: 95 – 32 = 63
- Multiply by 5: 63 × 5 = 315
- Divide by 9: 315 ÷ 9 = 35°C
- Result: 95°F is 35°C
- Convert 60°F to Celsius:
- 60 – 32 = 28
- 28 × 5 = 140
- 140 ÷ 9 = 15.5556°C
- Result: 60°F equals approximately 15.56°C
- Convert 100°F to Celsius:
- 100 – 32 = 68
- 68 × 5 = 340
- 340 ÷ 9 = 37.7778°C
- Result: 100°F is about 37.78°C
- Convert 70°F to Celsius:
- 70 – 32 = 38
- 38 × 5 = 190
- 190 ÷ 9 = 21.1111°C
- Result: 70°F equals roughly 21.11°C
Conversion Chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 55.0 | 12.7778 |
| 60.0 | 15.5556 |
| 65.0 | 18.3333 |
| 70.0 | 21.1111 |
| 75.0 | 23.8889 |
| 80.0 | 26.6667 |
| 85.0 | 29.4444 |
| 90.0 | 32.2222 |
| 95.0 | 35.0000 |
| 100.0 | 37.7778 |
| 105.0 | 40.5556 |
This chart lists Fahrenheit values from 55 to 105 degrees with their Celsius equivalents. You can use it to quickly find approximate Celsius temperatures without calculation, useful for weather readings or cooking temperatures.
Related Conversion Questions
- How warm is 80 degrees Fahrenheit in Celsius for outdoor activities?
- What Celsius temperature corresponds to 80°F for baking?
- Is 80°F a comfortable room temperature in Celsius?
- How do I convert 80 degrees Fahrenheit to Celsius in my calculator?
- What’s the difference between 80°F and 80°C in actual temperature feel?
- Can I use 80°F to Celsius conversion for scientific experiments?
- How accurate is converting 80°F to Celsius manually versus using a tool?
Conversion Definitions
Fahrenheit: Fahrenheit is a temperature scale where water freezes at 32 degrees and boils at 212 degrees under standard atmospheric conditions. It is mostly used in the United States and some Caribbean countries for weather, cooking, and industrial measurements.
Celsius: Celsius is a temperature scale with 0 degrees as the freezing point of water and 100 degrees as boiling point at sea level. It is widely adopted worldwide for scientific, weather, and everyday temperature readings except for a few countries.
Conversion FAQs
Why subtract 32 in the Fahrenheit to Celsius formula?
Subtracting 32 adjusts for the offset between the zero points of Fahrenheit and Celsius scales. Fahrenheit’s zero is much colder than Celsius’s zero, so you must align them to convert accurately.
Can I convert Fahrenheit to Celsius without a calculator?
Yes, you can estimate by subtracting 30 from the Fahrenheit number and then halving it for a rough Celsius value. This isn’t precise but useful for quick mental calculations when precision isn’t critical.
Why multiply by 5/9 after subtracting 32?
The multiplication by 5/9 scales the temperature because Fahrenheit degrees are smaller than Celsius degrees. This ratio converts the adjusted value into the correct Celsius magnitude.
Does this conversion work for negative Fahrenheit values?
Yes, the formula applies to negative numbers too. You still subtract 32 then multiply by 5/9. Negative Fahrenheit values convert to negative Celsius values reflecting cold temperatures.
Is converting 80°F to Celsius affected by altitude?
The basic conversion formula doesn’t change with altitude because it’s a mathematical scale conversion. However, boiling and freezing points can vary with altitude, but temperature conversions remain consistent.