28°F is approximately -2.2222°C.
To convert 28 degrees Fahrenheit into Celsius, you subtract 32 from the Fahrenheit value, then multiply the result by 5/9. This converts the temperature into the Celsius scale, which is based on the freezing and boiling points of water.
Conversion Tool
Result in celcius:
Conversion Formula
The formula for converting Fahrenheit (F) to Celsius (C) is:
C = (F – 32) × 5/9
This formula works because the Fahrenheit scale sets 32°F as the freezing point of water, while Celsius sets 0°C there. So subtracting 32 from F removes the offset. The multiplication by 5/9 scales the temperature difference from Fahrenheit degrees to Celsius degrees.
Step-by-step example for 28°F:
- Subtract 32: 28 – 32 = -4
- Multiply by 5/9: -4 × 5/9 = -20/9
- Result: -20/9 ≈ -2.2222°C
Conversion Example
- Convert 50°F to Celsius:
- Subtract 32: 50 – 32 = 18
- Multiply by 5/9: 18 × 5/9 = 90/9
- Result: 10°C
- Convert 10°F to Celsius:
- Subtract 32: 10 – 32 = -22
- Multiply by 5/9: -22 × 5/9 = -110/9
- Result: approximately -12.2222°C
- Convert 77°F to Celsius:
- Subtract 32: 77 – 32 = 45
- Multiply by 5/9: 45 × 5/9 = 225/9
- Result: 25°C
- Convert 0°F to Celsius:
- Subtract 32: 0 – 32 = -32
- Multiply by 5/9: -32 × 5/9 = -160/9
- Result: approximately -17.7778°C
Conversion Chart
The table below shows Fahrenheit values from 3.0 to 53.0 and their equivalent Celsius temperatures. You can find the Celsius temperature by locating the Fahrenheit value in the left column and reading the corresponding Celsius value on the right.
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 3.0 | -16.1111 |
| 8.0 | -13.3333 |
| 13.0 | -10.5556 |
| 18.0 | -7.7778 |
| 23.0 | -5.0000 |
| 28.0 | -2.2222 |
| 33.0 | 0.5556 |
| 38.0 | 3.3333 |
| 43.0 | 6.1111 |
| 48.0 | 8.8889 |
| 53.0 | 11.6667 |
Related Conversion Questions
- What is 28 Fahrenheit in Celsius rounded to two decimals?
- How cold is 28°F in Celsius scale?
- Is 28 degrees Fahrenheit below freezing in Celsius?
- How do I convert 28 F to Celsius without a calculator?
- What temperature does 28 Fahrenheit represent in Celsius?
- At 28°F, what Celsius temperature should I expect?
- Can you explain how 28 degrees Fahrenheit converts to Celsius?
Conversion Definitions
Fahrenheit (f): The Fahrenheit temperature scale sets the freezing point of water at 32 degrees and boiling point at 212 degrees under standard atmospheric pressure. It is mainly used in the United States for weather forecasts, cooking, and industrial settings.
Celsius (celcius): Celsius is a temperature scale based on water’s freezing point at 0 degrees and boiling point at 100 degrees at standard atmospheric pressure. It is the standard metric temperature measurement used in science and most countries worldwide.
Conversion FAQs
Why do we subtract 32 in the Fahrenheit to Celsius formula?
Subtracting 32 accounts for the difference between the two scales’ zero points. Fahrenheit sets 32°F as water’s freezing point, while Celsius sets that at 0°C. Removing 32 shifts the Fahrenheit value down so it aligns with Celsius zero.
Can I use this conversion for negative Fahrenheit values?
Yes, the formula works for any Fahrenheit temperature, including negatives. For example, -10°F converts by subtracting 32, yielding -42, then multiplying by 5/9 for the Celsius equivalent.
Why multiply by 5/9 after subtracting 32?
Because the size of one degree Fahrenheit is 5/9 of a degree Celsius. The multiplication scales the temperature difference from Fahrenheit units into Celsius units, adjusting for the different degree sizes.
Is the conversion accurate for scientific measurements?
The formula provides a precise conversion for practical and scientific uses, but rounding errors can occur if decimal places are limited. For high precision, use more decimal places or specialized instruments.
Can I reverse the formula to convert Celsius back to Fahrenheit?
Yes, reversing the process involves multiplying Celsius by 9/5, then adding 32: F = C × 9/5 + 32. This converts Celsius temperatures back to Fahrenheit scale accurately.