measure/images/thermometer.js?mode=boxes
Type a value in either box
Or use the slider
Or the Interactive Thermometer
Or this method:
°C to °F | Divide by 5, then multiply by 9, then add 32 |
°F to °C | Deduct 32, then multiply by 5, then divide by 9 |
(Explanation Below ...)
(only bold are exactly the same)
°C °F Description | |||
220 | 430 | Hot Oven | |
180 | 360 | Moderate Oven | |
100 | 212 | Water boils | |
40 | 104 | Hot Bath | |
37 | 98.6 | Body temperature | |
30 | 86 | Beach weather | |
21 | 70 | Room temperature | |
10 | 50 | Cool Day | |
0 | 32 | Freezing point of water | |
−18 | 0 | Very Cold Day | |
−40 | −40 | Extremely Cold Day (and the same number!) |
Some Tricks:
Daily Temperatures: these three conversions "flip the digits" (accurate within 1°):
°C °F 28 ⇄ 82 16 ⇄ 61
04 ⇄ 40
Oven Temperatures: in the range 150 to 200 °C we can double °C to get °F (accurate within 8°F):
°C | °F Estimate |
°F Actual |
200 | 400 | 392 |
180 | 360 | 356 |
160 | 320 | 320 |
150 | 300 | 302 |
Going the other way: for the range 300 to 400 °F we can halve °F to get °C (accurate within 4°C).
Explanation
There are two main temperature scales:
- °C, the Celsius Scale (part of the Metric System, used in most countries)
- °F, the Fahrenheit Scale (used in the US)
They both measure the same thing (temperature!), but use different numbers:
- Boiling water (at normal pressure) measures 100° in Celsius, but 212° in Fahrenheit
- And as water freezes it measures 0° in Celsius, but 32° in Fahrenheit
Like this:
Looking at the diagram, notice:
- The scales start at a different number (0 vs 32), so we will need to add or subtract 32
- The scales rise at a different rate (100 vs 180), so we will also need to multiply
And so, to convert:
from Celsius to Fahrenheit: first multiply by 180100, then add 32
from Fahrenheit to Celsius: first subtract 32, then multiply by 100180
180100 can be simplified to 95, and 100180 can be simplified to 59, so we get this:
First: 25° / 5 = 5
Then: 5 × 9 = 45
Then: 45 + 32 = 77° F
First: 98.6° − 32 = 66.6
Then: 66.6 × 5 = 333
Then: 333 / 9 = 37° C
We can swap the order of divide and multiply if we want, but don't change the add or subtract. So this is also OK:
First: 98.6° − 32 = 66.6
Then: 66.6 / 9 = 7.4
Then: 7.4 × 5 = 37° C
(Same answer as before, was it easier or harder this way?)
We can write them as formulas:Celsius to Fahrenheit: (°C × 95) + 32 = °F
Fahrenheit to Celsius: (°F − 32) × 59 = °C
9/5 is equal to 1.8, so we can also use this method:
Celsius to Fahrenheit: °C × 1.8 + 32 = °F
Fahrenheit to Celsius: (°F − 32) / 1.8 = °C
To make "×1.8" easier we can multiply by 2 and subtract 10%, but it only works for °C to °F:
Celsius to Fahrenheit: (°C × 2) less 10% + 32 = °F
Example: Convert 20° Celsius (A nice day) to Fahrenheit
- 20x2 = 40
- less 10% is 40−4 = 36
- 36+32 = 68° F
Add 40, Multiply, Subtract 40
Since both scales cross at −40° (−40° C equals −40° F) we can:
- add 40,
- multiply by 5/9 (for °F to °C), or 9/5 (for °C to °F)
- subtract 40
Like this:
Celsius to Fahrenheit: Add 40, multiply by 9/5, then subtract 40
Fahrenheit to Celsius: Add 40, multiply by 5/9, then subtract 40
Example: Convert 10° Celsius (A cool day) to Fahrenheit
- 10+40 = 50
- 50×9/5 = 90
- 90−40 = 50° F
Quick, but Not Accurate
Celsius to Fahrenheit: Double, then add 30
Fahrenheit to Celsius: Subtract 30, then halve
Examples °C → °F:
- 0° C → 0+30 → 30° F (low by 2°)
- 10° C → 20+30 → 50° F (exact!)
- 30° C → 60+30 → 90° F (high by 4°)
- 180° C → 360+30 → 390° F (high by 34°, not good)
Examples °F → °C:
- 40° F → 10/2 → 5° C (almost right)
- 80° F → 50/2 → 25° C (low by about 2°)
- 120° F → 90/2 → 45° C (low by about 4°)
- 450° F → 420/2 → 210° C (low by about 22°, not good)
Footnote: Temperature is a measure of how fast an object's particles are moving.
1041, 1042, 1043, 1044, 3724, 3725, 3726, 3727, 3728, 3729
Copyright © 2022 Rod Pierce
.info
Use this calculator to convert 100°C to Celsius. How many degrees Fahrenheit in 100°c? 100°c to degrees Fahrenheit is 212°f. How hot is 100°c in Fahrenheit? How cold? Type the information into the input boxes and the degrees in Fahrenheit will update automatically.
How much is 100 in Celsius to Fahrenheit? 100 degrees in Celsius is 212 degrees in Fahrenheit
100ctof 100c to f
Temperature Conversion – Degrees Celsius into Degrees Fahrenheit
Celsius to Fahrenheit conversion formula is all about converting the temperature denoting in Celsius to Fahrenheit. As mentioned earlier, the temperature of boiling (hot) water in Celsius is 0 degrees and in Fahrenheit is 21 degrees, the formula to convert C to F is
F = C x (9/5) + 32
The math is here is fairly simple, and can be easily understood by an example. Let’s say we need to 100 Celsius to Fahrenheit!
How To Convert 100 C to F?
To convert 100 degrees Celsius to Fahrenheit, all one needs is to put in the values in the converter equation-
F = 100 x (9/5) +32
F = 212 degrees
Thus, after applying the formula to convert 100 Celcius to Fahrenheit, the answer is –
100°C = 212°F
or
100 degrees Celsius equals 212 degrees Fahrenheit!
Frequently asked questions about converting 100 Degrees Celsius into Degrees Fahrenheit
How much is 100 degrees in Celsius to Fahrenheit?
100C to F = 212 °F
What is the formula to calculate Celsius to Fahrenheit?
The C to F formula is
(C × 9/5) + 32 = F
When we enter 100 for C in the formula, we get
(100 × 9/5) + 32 = 212 F
To solve (100 × 9/5) + 32 = F, we first multiply 9 by 100, then we divide the product by 5, and then finally we add 32 to the quotient to get the answer.
What is the simplest way of converting Celsius into Fahrenheit?
The boiling temperature of water in Celsius is 0 and 21 in Fahrenheit. So, the simplest formula to calculate the difference is
F = C X (9/5) + 32
But this is not the only formula that is used for the conversion as some people believe it doesn’t give out the exact number.
One another formula that is believed to be equally easy and quick is –
Celsius Temperature X 2 + 32 = Fahrenheit
For converting Fahrenheit into Celsius, you can use this formula – Fahrenheit Temperature – 30 / 2 = Celsius Temperature.
While there are other temperature units like Kelvin, Réaumur, and Rankine as well, Degree Celsius and Degree Fahrenheit are the most commonly used.
While Fahrenheit is primarily used in the US and its territories, Celsius has gained more popularity in the rest of the world. For those using these two different scales, the numbers that denote that temperature is quite different.
For example, water freezes at Zero Degree Celsius and boils at 100 degrees, the readings are 32-degree Fahrenheit as the freezing point of water and 212 degrees for boiling.
Fahrenheit Conversions
For Fahrenheit conversion, all you need to do is start with the temperature in Fahrenheit. Subtract 30 from the resultant figure, and finally, divide your answer by 2!
Common F and C Temperature Table
°C | °F | What it represents? |
-40 | -40 | Celsius equals Fahrenheit. It represents extreme cold day |
−18 | 0 | Represents an average cold winter day. |
0 | 32 | Represents freezing point of water. |
10 | 50 | Represents a pleasant cool day. |
21 | 70 | Represents a typical room temperature. |
58 | 136 | Represents the highest temperature ever recorded on Earth. |
-88 | -126 | Represents the lowest temperature ever recorded on Earth. |
15 | 59 | Represents surface temperature of Earth. |
30 | 86 | Represents a hot day. |
37 | 98.6 | Represents a normal body temperature. |
40 | 104 | Represents a hot shower temperature. |
100 | 212 | Represents boiling point of water |
180 | 356 | Represents baking temperature in an oven. |
Key Inferences about Fahrenheit and Celsius
- Celsius and Fahrenheit are commonly misspelled as Celcius and Farenheit.
- The formula to find a Celsius temperature from Fahrenheit is: °F = (°C × 9/5) + 32
- The formula to find a Fahrenheit temperature from Celsius is: °°C = (°F - 32) × 5/9
- The two temperature scales are equal at -40°.
Oven temperature chart
Fahrenheit | Celsius | Gas Mark | Warm or Not? |
275° F | 140° C | 1 | Very Cool or Very Slow |
300° F | 150° C | 2 | Cool or Slow |
325° F | 165° C | 3 | Warm |
350° F | 177° C | 4 | Moderate |
375° F | 190° C | 5 | Moderate |
400° F | 200° C | 6 | Moderately Hot |
425° F | 220° C | 7 | Hot |
450° F | 230° C | 8 | Hot |
475° F | 245° C | 9 | Hot |
500° F | 260° C | 10 | Very Hot |
How to Convert From Fahrenheit to Celsius and Celsius to Fahrenheit - Quick and Easy Method
History of The Two Most Popular Temperature Units
The Fahrenheit temperature scale is named after the German physicist Daniel Gabriel Fahrenheit in 1724 and was originally used for temperature measurement through mercury thermometers that he invented himself.
Meanwhile, the Celsius scale was originally called centigrade but later came to be named after Swedish astronomer Anders Celsius in 1742. But when the scale was first introduced, it was quite the reverse of what it is today. Anders labeled 0 Degree Celsius as the boiling point of water, while 100 denoted the freezing point.
However, after Celsius passed away, Swedish taxonomist Carl Linnaeus flipped it to the opposite, the same as it is used today.
Our Take
While this is the formula that is used for the conversion from Celsius to Fahrenheit, there are few diversions and it is not always a perfect conversion either making it slightly more difficult than what appears to be.
All said and done, one must understand that since both the scales are offset, meaning that neither of them is defined as starting from zero, there comes a slightly complicated angle to the above-mentioned formula.
Besides, the two scales do not start with a zero, and they both add a different additional value for every unit of heat. This is why it is not every time possible to get an exact value of the conversion by applying the formula.
Reverse Conversion: Fahrenheit to Celsius
Celsius | Fahrenheit |
100.01°C | 212.02°F |
100.02°C | 212.04°F |
100.03°C | 212.05°F |
100.04°C | 212.07°F |
100.05°C | 212.09°F |
100.06°C | 212.11°F |
100.07°C | 212.13°F |
100.08°C | 212.14°F |
100.09°C | 212.16°F |
100.1°C | 212.18°F |
100.11°C | 212.2°F |
100.12°C | 212.22°F |
100.13°C | 212.23°F |
100.14°C | 212.25°F |
100.15°C | 212.27°F |
100.16°C | 212.29°F |
100.17°C | 212.31°F |
100.18°C | 212.32°F |
100.19°C | 212.34°F |
100.2°C | 212.36°F |
100.21°C | 212.38°F |
100.22°C | 212.4°F |
100.23°C | 212.41°F |
100.24°C | 212.43°F |
Celsius | Fahrenheit |
100.25°C | 212.45°F |
100.26°C | 212.47°F |
100.27°C | 212.49°F |
100.28°C | 212.5°F |
100.29°C | 212.52°F |
100.3°C | 212.54°F |
100.31°C | 212.56°F |
100.32°C | 212.58°F |
100.33°C | 212.59°F |
100.34°C | 212.61°F |
100.35°C | 212.63°F |
100.36°C | 212.65°F |
100.37°C | 212.67°F |
100.38°C | 212.68°F |
100.39°C | 212.7°F |
100.4°C | 212.72°F |
100.41°C | 212.74°F |
100.42°C | 212.76°F |
100.43°C | 212.77°F |
100.44°C | 212.79°F |
100.45°C | 212.81°F |
100.46°C | 212.83°F |
100.47°C | 212.85°F |
100.48°C | 212.86°F |
100.49°C | 212.88°F |
Celsius | Fahrenheit |
100.5°C | 212.9°F |
100.51°C | 212.92°F |
100.52°C | 212.94°F |
100.53°C | 212.95°F |
100.54°C | 212.97°F |
100.55°C | 212.99°F |
100.56°C | 213.01°F |
100.57°C | 213.03°F |
100.58°C | 213.04°F |
100.59°C | 213.06°F |
100.6°C | 213.08°F |
100.61°C | 213.1°F |
100.62°C | 213.12°F |
100.63°C | 213.13°F |
100.64°C | 213.15°F |
100.65°C | 213.17°F |
100.66°C | 213.19°F |
100.67°C | 213.21°F |
100.68°C | 213.22°F |
100.69°C | 213.24°F |
100.7°C | 213.26°F |
100.71°C | 213.28°F |
100.72°C | 213.3°F |
100.73°C | 213.31°F |
100.74°C | 213.33°F |
Celsius | Fahrenheit |
100.75°C | 213.35°F |
100.76°C | 213.37°F |
100.77°C | 213.39°F |
100.78°C | 213.4°F |
100.79°C | 213.42°F |
100.8°C | 213.44°F |
100.81°C | 213.46°F |
100.82°C | 213.48°F |
100.83°C | 213.49°F |
100.84°C | 213.51°F |
100.85°C | 213.53°F |
100.86°C | 213.55°F |
100.87°C | 213.57°F |
100.88°C | 213.58°F |
100.89°C | 213.6°F |
100.9°C | 213.62°F |
100.91°C | 213.64°F |
100.92°C | 213.66°F |
100.93°C | 213.67°F |
100.94°C | 213.69°F |
100.95°C | 213.71°F |
100.96°C | 213.73°F |
100.97°C | 213.75°F |
100.98°C | 213.76°F |
100.99°C | 213.78°F |