- Determine the temperature in Celsius: 20 degrees.
- Multiply this number by two: 20 x 2 = 40.
- Determine ten percent of this number: 40 x 0.1 = 4.
- Subtract this number from your number in step two: 40 – 4 = 36.
- Add thirty-two to this number: 36 + 32 = 68 degrees Fahrenheit.
How do you convert Fahrenheit to Celsius in the negatives?
So, to convert a temperature from Celsius to Fahrenheit, you multiply it by 1.8, then add 32. Say you want to find what -10 degrees C is in Fahrenheit. First, multiply -10 by 1.8. Remember that a negative number multiplied by a positive number is a negative number.
To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
Celsius to Fahrenheit conversion table
|Celsius (°C)||Fahrenheit (°F)|
|-273.15 °C||-459.67 °F|
|-50 °C||-58.0 °F|
|-40 °C||-40.0 °F|
|-30 °C||-22.0 °F|
OK, back to work. You can convert between Celsius and Kelvin like this: Kelvin = Celsius + 273.15. Often, the value of 273 is used instead of 273.15. Check with your teacher on this point.
Method 2 Converting Values with Multiple Units
- Write down your problem.
- Find the conversion for one unit.
- Multiply your number by the conversion fraction.
- Cancel out your units.
- Multiply with another conversion fraction the same way.
- Cancel units.
- Repeat until the conversion is done.
The Fahrenheit scale is a temperature scale based on one proposed in 1724 by Dutch-German-Polish physicist Daniel Gabriel Fahrenheit (1686–1736). It uses the degree Fahrenheit (symbol: °F) as the unit. Several accounts of how he originally defined his scale exist.
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.
Fahrenheit remains the official scale for the following countries: the Bahamas, Belize, the Cayman Islands, Palau and the United States and associated territories (Puerto Rico, Guam and the U.S. Virgin Islands). Canada retains it as a supplementary scale that can be used alongside Celsius.
Method 2 Converting to Celsius Then Kelvin
- Learn the formulas.
- Subtract 32 from your original temperature.
- Multiply the difference by 5/9 for formula 1.
- Divide the difference by 1.8 for formula 2.
- Add 273 to the product or quotient to get your temperature in Kelvin.
The Rankine scale is similar to the Kelvin scale in that zero is Absolute Zero; however, a degree Rankine is defined as equal to one degree Fahrenheit as opposed to one degree Celsius (as used by the Kelvin scale). A temperature of -459.67 °F is equal to 0 R.
Kelvin to Celsius Conversion Formula. Here is the formula to convert Kelvin into Celsius: °C = K - 273.15. All that is needed to convert Kelvin to Celsius is one simple step.
In 1848, Kelvin used this as a basis for an absolute temperature scale. He defined "absolute" as the temperature at which molecules would stop moving, or "infinite cold." From absolute zero, he used the same unit as Celsius to determine the increments.
A temperature below absolute zero. Thus, nothing can be colder than absolute zero on the Kelvin scale. Physicists at the Ludwig-Maximilians University Munich and the Max Planck Institute of Quantum Optics in Garching have now created an atomic gas in the laboratory that nonetheless has negative Kelvin values.
On Kelvin's scale, zero is set at what would be -273.15 Centigrade, or -459.67 fahrenheit. On the Kelvin scale the coldest temperature possible, -273 oC, has a value of 0 Kelvin (0 K) and is called the absolute zero. Because there are no lower temperatures than 0 K, the Kelvin scale does not have negative numbers.
Dec. 10, 2013: What is the coldest place on Earth? It is a high ridge in Antarctica on the East Antarctic Plateau where temperatures in several hollows can dip below minus 133.6 degrees Fahrenheit (minus 92 degrees Celsius) on a clear winter night.
Yakutsk is the largest city built on continuous permafrost, and many houses there are built on concrete piles. The lowest temperatures ever recorded on the planet outside Antarctica occurred in the basin of the Yana River to the northeast of Yakutsk, making it the coldest major city in the world.
Death by cold is harder to delimit. A person usually expires when their body temperature drops to 70 degrees F (21 degrees C), but how long this takes to happen depends on how "used to the cold" a person is, and whether a mysterious, latent form of hibernation sets in, which has been known to happen.
Our cells start to die around 41°C (106°F) to 45°C (113°F) but we can survive much higher air temperatures: a healthy person could make a day trip to Death Valley on one of its hottest days-- 55°C (131°F)-- and, so long as he avoided dehydration, would probably not die.
The normal human body temperature can be as high as 37.7 °C (99.9 °F) in the late afternoon. Hyperthermia requires an elevation from the temperature that would otherwise be expected. Such elevations range from mild to extreme; body temperatures above 40 °C (104 °F) can be life-threatening.
Hyperthermia (when the body is too hot - known in its acute form as heatstroke) and is medically defined as a core body temperature from 37.5–38.3 °C (4). A body temperature of above 40°C is likely to be fatal due to the damage done to enzymes in critical biochemical pathways (e.g. respiratory enzymes).
Hot. 44 °C (111.2 °F) or more – Almost certainly death will occur; however, people have been known to survive up to 46.5 °C (115.7 °F). 43 °C (109.4 °F) – Normally death, or there may be serious brain damage, continuous convulsions and shock. Cardio-respiratory collapse will likely occur.