80 degrees Fahrenheit is equal to 26.6667 degrees Celsius.
The conversion from Fahrenheit to Celsius is done by subtracting 32 from the Fahrenheit temperature, then multiplying the result by 5/9. This formula converts the temperature scale properly because Fahrenheit and Celsius have different zero points and scaling increments.
Conversion Tool
Result in celsius:
Conversion Formula
To convert Fahrenheit to Celsius, you subtract 32 from the Fahrenheit temperature, then multiply the result by 5/9. This formula comes from the difference in the zero points and scaling between the two temperature systems. Fahrenheit uses 32 degrees as freezing point of water, while Celsius uses 0.
Mathematically:
C = (F – 32) × 5/9
For example, converting 80°F:
- Subtract 32: 80 – 32 = 48
- Multiply by 5/9: 48 × 5/9 = 26.6667
- So, 80°F equals approximately 26.67°C.
Conversion Example
- Convert 68°F to Celsius:
- Subtract 32: 68 – 32 = 36
- Multiply by 5/9: 36 × 5/9 = 20
- Result: 68°F is 20°C
- Convert 95°F to Celsius:
- Subtract 32: 95 – 32 = 63
- Multiply by 5/9: 63 × 5/9 = 35
- Result: 95°F is 35°C
- Convert 50°F to Celsius:
- Subtract 32: 50 – 32 = 18
- Multiply by 5/9: 18 × 5/9 = 10
- Result: 50°F is 10°C
- Convert 100°F to Celsius:
- Subtract 32: 100 – 32 = 68
- Multiply by 5/9: 68 × 5/9 = 37.7778
- Result: 100°F is approximately 37.78°C
Conversion Chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 55.0 | 12.778 |
| 60.0 | 15.556 |
| 65.0 | 18.333 |
| 70.0 | 21.111 |
| 75.0 | 23.889 |
| 80.0 | 26.667 |
| 85.0 | 29.444 |
| 90.0 | 32.222 |
| 95.0 | 35.000 |
| 100.0 | 37.778 |
| 105.0 | 40.556 |
This chart helps you quickly look up the Celsius equivalent of Fahrenheit temperature between 55°F and 105°F. Just find the Fahrenheit value in the left column and read across to see the Celsius value on the right.
Related Conversion Questions
- What Celsius temperature matches 80 degrees Fahrenheit precisely?
- How to convert 80°F into Celsius without a calculator?
- Is 80°F warm or cool in Celsius?
- What is the formula to change 80°F to Celsius?
- How much colder is 70°F compared to 80°F in Celsius?
- Can I use the same conversion for 80°F and 80°C?
- Does 80°F equal room temperature in Celsius?
Conversion Definitions
Fahrenheit: Fahrenheit is a temperature scale where water freezes at 32 degrees and boils at 212 degrees under standard atmospheric pressure. It was developed by Daniel Gabriel Fahrenheit in the 18th century and is mainly used in the United States and some Caribbean countries.
Celsius: Celsius, also called centigrade, is a scale where water freezes at 0 degrees and boils at 100 degrees under standard atmospheric pressure. It is used worldwide for scientific and everyday temperature measurement because of its decimal-based increments.
Conversion FAQs
Why does the conversion require subtracting 32 first?
Because the zero point in Fahrenheit is set at 32 for water’s freezing point, subtracting 32 adjusts the scale to match Celsius’ zero for freezing. Without this step, the scales wouldn’t align correctly for conversion.
Can I convert Fahrenheit to Celsius by just multiplying by 0.5?
No, multiplying by 0.5 is an approximation, but inaccurate. The correct conversion includes subtracting 32 first, then multiplying by 5/9 (about 0.5556). Omitting subtraction causes errors in the result.
Is the result always rounded to two decimal places?
Rounding depends on purpose. For casual use, two decimal places or fewer is fine. Scientific calculations might require more precision, so four decimal places or exact fractions are used sometimes.
Why does 80°F convert to a non-whole Celsius number?
Because the conversion factor 5/9 is not an integer, most Fahrenheit values don’t convert to whole Celsius numbers. The decimal result reflects the difference in scale increments between the two units.
Are Fahrenheit and Celsius interchangeable in recipes or weather forecasts?
They measure the same property but use different scales. Recipes and forecasts must specify the scale to avoid errors. Using the wrong scale can cause undercooked food or incorrect temperature expectations.