🌡️ Science & Living
Temperature Converter
The most accurate tool for thermal conversion. Switch effortlessly between Celsius, Fahrenheit, and Kelvin with scientific precision for weather, cooking, or chemistry.
Temperature Value
Decimals
CONVERTED RESULT
32.00
°F
Formula Used:
(0°C × 9/5) + 32 = 32°F
Water Freezes
0°C / 32°F
Water Boils
100°C / 212°F
Body Temp
37°C / 98.6°F
Temperature Conversion Formulas
Unlike weight or length which start at zero, temperature scales have different starting points (offsets). This makes the math slightly more complex.
Celsius to Fahrenheit
(°C × 9/5) + 32
Fahrenheit to Celsius
(°F − 32) × 5/9
Celsius to Kelvin
°C + 273.15
Understanding the Scales
🔵 Celsius (°C)
Metric Standard- Based on water: 0° is freezing, 100° is boiling.
- Used by almost every country worldwide.
- Also known as "Centigrade".
🔴 Fahrenheit (°F)
US Standard- Based on brine mixture and human body temp.
- Water freezes at 32°, boils at 212°.
- Used primarily in the USA, Bahamas, and Belize.
🟣 Kelvin (K)
Scientific- Starts at Absolute Zero (-273.15°C).
- No negative numbers possible.
- Standard unit for Thermodynamics and Physics.
Common Temperature Benchmarks
| Condition | Celsius (°C) | Fahrenheit (°F) |
|---|---|---|
| Absolute Zero | -273.15°C | -459.67°F |
| Freezing Water | 0°C | 32°F |
| Room Temperature | 20-22°C | 68-72°F |
| Body Temperature | 37°C | 98.6°F |
| Boiling Water | 100°C | 212°F |
| Oven Baking | 180°C | 350°F |
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Frequently Asked Questions
What is the formula to convert C to F?
Multiply the Celsius temperature by 1.8 (or 9/5) and add 32. For example: (20°C × 1.8) + 32 = 68°F.
Why does the USA use Fahrenheit?
The US kept the British Imperial system when other nations industrialized. Fahrenheit offers a more precise scale for air temperature (0-100 is "very cold" to "very hot") without needing decimals.
What is -40 degrees?
Interestingly, -40° is the unique point where the Celsius and Fahrenheit scales intersect. So -40°C is exactly equal to -40°F.
How do I convert Kelvin to Celsius?
Simply subtract 273.15. If it is 300K, the Celsius temperature is 300 - 273.15 = 26.85°C.
Why doesn't Kelvin use the degree symbol?
Kelvin is an absolute scale, not a relative one. We say "300 Kelvin", not "300 degrees Kelvin". It measures the actual thermal energy present.
What is Absolute Zero?
Absolute Zero (0 K or -273.15°C) is the theoretical lowest temperature possible, where all molecular motion ceases.
Is 100°F twice as hot as 50°F?
No. Temperature scales have arbitrary zero points. To calculate "twice as hot," you must convert to Kelvin first (absolute energy).
What temperature should I bake at?
Standard baking temperature is 180°C (Fan) or 350°F. Always check if your recipe specifies Fan/Convection, as you might need to adjust by 20°C.
Is a 1 degree change the same in C and F?
No. A change of 1 degree Celsius is equal to a change of 1.8 degrees Fahrenheit. Celsius degrees are "larger".
Can temperature be negative in Kelvin?
No. Since 0 K is the absolute absence of thermal energy, you cannot go below it in the standard thermodynamic model.