How to convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 (or 1.8) and add 32. Formula: (C * 1.8) + 32 = F.
How to convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value and multiply by 5/9 (or 0.5556). Formula: (F - 32) / 1.8 = C.
How to convert Celsius to Kelvin?
Add 273.15 to the Celsius value. Formula: C + 273.15 = K.
What is absolute zero?
Absolute zero is the lowest possible temperature where all thermal motion ceases. It is 0 Kelvin, -273.15 Celsius, or -459.67 Fahrenheit.
Is -40C the same as -40F?
Yes. -40 degrees is the unique point where the Celsius and Fahrenheit scales intersect.
What is normal body temperature?
Normal body temperature is typically around 37°C or 98.6°F, though it can vary slightly by individual.
What is the boiling point of water?
At sea level, water boils at 100°C, 212°F, or 373.15K.
What is the freezing point of water?
At sea level, water freezes at 0°C, 32°F, or 273.15K.
How to convert Kelvin to Fahrenheit?
Multiply Kelvin by 1.8, then subtract 459.67. Formula: (K * 1.8) - 459.67 = F.
What is Rankine?
Rankine is an absolute temperature scale related to Fahrenheit, just as Kelvin is related to Celsius. 0°R is absolute zero.
Is Celsius metric?
Yes, Celsius is the standard unit of temperature in the metric system (SI), used by most of the world.
Who uses Fahrenheit?
Fahrenheit is primarily used in the United States, Bahamas, Cayman Islands, and a few other territories. Most other countries use Celsius.
What is room temperature?
Room temperature is generally considered to be around 20-22°C or 68-72°F.
How to convert F to C mentally?
Subtract 30 and divide by 2 for a rough estimate. Example: (80F - 30) / 2 = 25C (Actual is 26.6C).
How to convert C to F mentally?
Double the Celsius number and add 30 for a rough estimate. Example: (20C * 2) + 30 = 70F (Actual is 68F).
Can temperature be negative in Kelvin?
No. The Kelvin scale starts at absolute zero (0K), so there are no negative numbers in standard physics.
Hottest temp recorded on Earth?
The highest reliably recorded temperature was 56.7°C (134°F) in Death Valley, California, in 1913.
Coldest temp recorded on Earth?
The lowest recorded natural temperature was -89.2°C (-128.6°F) at Vostok Station, Antarctica, in 1983.
Difference between Centigrade and Celsius?
They are the same. 'Centigrade' was the old name for the Celsius scale until 1948, but the term is still commonly used.
Why is 32 freezing in Fahrenheit?
Daniel Fahrenheit set 0 as the coldest temperature he could create with a brine mixture. Pure water froze at 32 degrees on his scale.
What is 100F in Celsius?
100°F is approximately 37.8°C. This is considered a fever for humans.
What is 0F in Celsius?
0°F is approximately -17.8°C. This is very cold weather.
What is 25C in Fahrenheit?
25°C is 77°F. This is considered a comfortable warm day.
What is 0K in Celsius?
0 Kelvin is -273.15°C.
How accurate is this converter?
This tool uses standard scientific formulas and provides high precision decimal outputs.
Does altitude affect boiling point?
Yes. At higher altitudes, air pressure is lower, so water boils at a lower temperature (e.g., 95°C in Denver instead of 100°C).
What is oven 350F in Celsius?
350°F is approximately 177°C (often rounded to 180°C in recipes).
What is oven 200C in Fahrenheit?
200°C is 392°F (often rounded to 400°F in recipes).
What is a fever temperature?
A body temperature of 100.4°F (38°C) or higher is generally considered a fever.
What is hypothermia temperature?
Hypothermia occurs when body temperature drops below 95°F (35°C).
What is the surface temperature of the Sun?
The Sun's surface is approximately 5,500°C (9,932°F).
How to convert Newton scale?
The Newton scale is defined by 0 as freezing and 33 as boiling. Formula: N = C * 0.33.
What is the Reaumur scale?
An older scale where 0 is freezing and 80 is boiling point of water. Formula: Re = C * 0.8.
Does this tool work offline?
Yes, N28 tools run client-side in your browser, so you can convert without an internet connection once loaded.
Can I copy the result?
Yes, the results update instantly and can be highlighted and copied.
What is thermodynamic temperature?
It is a measure of the absolute energy of particles, typically measured in Kelvin.
Why are there different scales?
Scales were developed independently by scientists (Celsius, Fahrenheit, Kelvin) based on different reference points like water or absolute zero.
What is gas mark 4 in Celsius?
Gas Mark 4 is equivalent to 180°C (350°F).
Is space cold?
The background temperature of space is 2.7 Kelvin (-270.45°C), which is just above absolute zero.
How to convert Delisle scale?
Delisle is an inverted scale where higher numbers are colder. 0 is boiling, 150 is freezing.