28°F is approximately -2.2222°C.
To convert 28 degrees Fahrenheit to Celsius, you subtract 32 from the Fahrenheit value, then multiply the result by 5/9. This adjusts the scale from Fahrenheit to Celsius, which have different zero points and increments.
Conversion Tool
Result in celcius:
Conversion Formula
The formula to convert Fahrenheit (f) to Celsius (celcius) is:
C = (F – 32) × 5/9
This works by first removing 32 degrees, which is the offset between the zero points of Fahrenheit and Celsius scales. Then, multiplying by 5/9 adjusts for the ratio between their degrees. Fahrenheit degrees are smaller, so this scales it down to Celsius size.
Example: Convert 28°F to Celsius
- Subtract 32: 28 – 32 = -4
- Multiply by 5/9: -4 × 5/9 = -20/9 ≈ -2.2222
- Result is about -2.2222°C
Conversion Example
Let’s try converting 50°F to Celsius step-by-step:
- Start with 50°F
- Subtract 32: 50 – 32 = 18
- Multiply by 5/9: 18 × 5/9 = 90/9 = 10
- Therefore, 50°F equals 10°C
Another example, converting 10°F:
- 10 – 32 = -22
- -22 × 5/9 = -110/9 ≈ -12.2222°C
And converting 100°F:
- 100 – 32 = 68
- 68 × 5/9 = 340/9 ≈ 37.7778°C
Conversion Chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 3.0 | -16.1111 |
| 10.0 | -12.2222 |
| 17.0 | -8.3333 |
| 24.0 | -4.4444 |
| 28.0 | -2.2222 |
| 32.0 | 0.0000 |
| 37.0 | 2.7778 |
| 42.0 | 5.5556 |
| 47.0 | 8.3333 |
| 53.0 | 11.6667 |
This chart helps you quickly find Celsius values for common Fahrenheit temperatures. Look up the Fahrenheit in the left column, then read across to find the Celsius equivalent.
Related Conversion Questions
- What is 28 degrees Fahrenheit in Celsius to two decimals?
- How do you convert 28°F to Celsius manually?
- Is 28°F below freezing in Celsius?
- Why is 28 Fahrenheit negative in Celsius?
- How to calculate Celsius from 28 Fahrenheit without calculator?
- What temperature in Celsius equals 28 degrees Fahrenheit?
- How much colder is 28°F compared to 0°C?
Conversion Definitions
F (Fahrenheit): Fahrenheit is a temperature scale where water freezes at 32 degrees and boils at 212 degrees under standard atmospheric pressure. The scale is mostly used in the United States and some Caribbean countries for measuring everyday temperatures.
Celcius (Celsius): Celsius is a metric temperature scale where 0° is the freezing point of water and 100° is boiling point at sea level. The scale is widely used around the world for scientific and everyday temperature measurement, based on the decimal system.
Conversion FAQs
Can the Fahrenheit to Celsius formula be reversed?
Yes, you can convert Celsius back to Fahrenheit by the formula: F = (C × 9/5) + 32. This reverses the subtraction and multiplication steps, letting you go from Celsius numbers into Fahrenheit scale.
Why does subtracting 32 matter when converting?
The 32 is subtracted because the zero points of the Fahrenheit and Celsius scales don’t match. 0°C is freezing water, but in Fahrenheit, freezing water is 32°F. Removing 32 aligns the scales before adjusting for different degree sizes.
Why do we multiply by 5/9 specifically?
The fraction 5/9 comes from the ratio of the size of one degree Celsius to one degree Fahrenheit. A Celsius degree is larger, so you multiply by 5/9 to shrink the Fahrenheit difference to Celsius units.
Is there a temperature where Fahrenheit and Celsius are equal?
Yes, at -40 degrees, Fahrenheit and Celsius scales show the same temperature. This is where (F – 32) × 5/9 equals F itself, making -40 the crossover point.
Are there rounding errors in conversion?
Sometimes rounding happens because the conversion often results in repeating decimals. Using more decimals increases accuracy but for everyday use, rounding to two or four decimals is enough.