25°F is approximately -3.8889°C.
To convert 25 Fahrenheit to Celsius, subtract 32 from the Fahrenheit value, then multiply the result by 5/9. This adjusts for the difference in the starting points and scale size between the two temperature units.
Conversion Tool
Result in celcius:
Conversion Formula
The conversion formula to change Fahrenheit (f) into Celsius (celcius) is: Celsius = (Fahrenheit – 32) × 5/9.
This works because Fahrenheit and Celsius scales have different zero points and unit sizes. Fahrenheit’s freezing point of water is 32, while Celsius’s freezing point is 0, so subtracting 32 shifts the base. Then multiplying by 5/9 adjusts the scale size since Fahrenheit degrees are smaller.
Example calculation for 25°F:
- Subtract 32: 25 – 32 = -7
- Multiply by 5/9: -7 × 5/9 ≈ -3.8889
- Result: 25°F = -3.8889°C
Conversion Example
- Convert 68°F to Celsius:
- Subtract 32: 68 – 32 = 36
- Multiply by 5/9: 36 × 5/9 = 20
- Result: 68°F = 20°C
- Convert 0°F to Celsius:
- Subtract 32: 0 – 32 = -32
- Multiply by 5/9: -32 × 5/9 ≈ -17.7778
- Result: 0°F ≈ -17.7778°C
- Convert 100°F to Celsius:
- Subtract 32: 100 – 32 = 68
- Multiply by 5/9: 68 × 5/9 ≈ 37.7778
- Result: 100°F ≈ 37.7778°C
Conversion Chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 0.0 | -17.7778 |
| 5.0 | -15.0000 |
| 10.0 | -12.2222 |
| 15.0 | -9.4444 |
| 20.0 | -6.6667 |
| 25.0 | -3.8889 |
| 30.0 | -1.1111 |
| 35.0 | 1.6667 |
| 40.0 | 4.4444 |
| 45.0 | 7.2222 |
| 50.0 | 10.0000 |
This chart shows Fahrenheit temperatures from 0 to 50 in steps of 5, and their Celsius equivalents. To use, find the Fahrenheit value you want, then read the Celsius value next to it. For numbers between listed values, you can estimate or use the formula for exact conversion.
Related Conversion Questions
- How cold is 25 degrees Fahrenheit in Celsius?
- What temperature corresponds to 25°F in Celsius scale?
- Is 25 Fahrenheit below freezing in Celsius?
- How do I convert 25°F into Celsius manually?
- What is the Celsius equivalent of 25 Fahrenheit degrees?
- Does 25°F equal a negative Celsius temperature?
- Why does 25°F convert to a negative Celsius number?
Conversion Definitions
F (Fahrenheit): Fahrenheit is a temperature scale where water freezes at 32 degrees and boils at 212 degrees under standard atmospheric pressure. It is mostly used in the United States for weather and cooking temperature, measuring temperature in degrees Fahrenheit (°F).
Celcius: Celcius is a metric temperature scale where 0 degrees marks the freezing point of water and 100 degrees marks its boiling point at sea level. It’s widely used around the world for science, weather forecasting, and daily temperature readings, using degrees Celsius (°C).
Conversion FAQs
Why does the conversion formula subtract 32 first?
The Fahrenheit scale starts freezing water at 32°F, which is its zero point, while Celsius sets freezing at 0°C. Subtracting 32 shifts the Fahrenheit temperature to align with Celsius’s zero, letting the multiplication step convert the scale size correctly.
Can I convert Fahrenheit to Celsius by just multiplying by 0.5556?
No, because you need to adjust for the offset between freezing points first. Multiplying by 0.5556 (or 5/9) alone would give incorrect results. The subtraction of 32 is necessary to remove the baseline difference between the two scales.
Is the Celsius result always smaller than Fahrenheit?
Not always. At lower temperatures like 25°F, Celsius values are smaller and negative. But at higher temperatures, Celsius values become larger. The relation depends on the specific temperature and the formula’s subtraction and scaling factors.
Why do some Celsius results have many decimal places?
Because the conversion factor 5/9 is a fraction, and the original Fahrenheit number might not convert evenly, the Celsius value can have long decimal parts. Rounding to a few decimals is common to simplify the number.
Does this conversion apply at extreme temperatures too?
Yes, the formula works for any temperature on the Fahrenheit scale, including very high or very low values. It’s a linear conversion so applies uniformly, though at extreme temperatures physical properties may change.