Celcius to Farenheit (Celsius to Fahrenheit)
Celsius and Fahrenheit are two common temperature scales. Glow Images, Inc / Getty Images
Celsius to Fahrenheit Conversion Formula
Multiply the °C temperature by 1.8. Add 32 to this number. This is the answer in °F.
Table of °C and °F Temperature Conversions
Sometimes it's good to just look up important temperatures, like body temperature, the freezing point and boiling point of water, etc. Here are some common important temperatures, in both Celsius (the metric scale) and Fahrenheit (the US temperature scale):
Key Points
Celsius and Fahrenheit are two important temperature scales that are commonly misspelled as Celcius and Farenheit.
How to convert Celsius to Fahrenheit?
If you find yourself needing to quickly convert Celsius to Fahrenheit, here is a simple trick you can use: multiply the temperature in degrees Celsius by 2, and then add 30 to get the (estimated) temperature in degrees Fahrenheit.
What is the most common temperature scale?
Celsius (written as °C and also called Centigrade) is the most common temperature scale in the world, used by all but five countries. It’s part of the International System of Units (SI), or what you might know as the metric system, which is typically used in science classes (think centimeters, meters, kilograms, milliliters, ...
Is Fahrenheit a metric or imperial?
By contrast, Fahrenheit (written as °F) is only used officially by five countries in the world: Fahrenheit is not part of the metric system; rather, it’s part of the Imperial system, which includes forms of measurements such as inches, feet, pounds, gallons, etc.
Is -40 °C the same as -40 °F?
As the chart indicates, -40 °C is the same temperature as -40 °F. This point is called parity, meaning the two scales use the same value to represent the same temperature. Unfortunately (or fortunately, since this is pretty cold!), you likely won’t come across this temperature in your daily life.
Is Fahrenheit the same as Celsius?
As you can see from this chart, Fahrenheit temperatures are typically a lot higher than their equivalent Celsius temperatures are. Also, notice how the difference between Celsius and Fahrenheit starts to get smaller the lower you go in temperature—until, that is, they're the exact same!
How to Convert Celsius to Fahrenheit Quickly
This formula will help you make a close estimate for a Fahrenheit temperature when you're converting from Celsius. This is a great formula to do quickly in your head. Simply multiply the Celsius temperature by 2 and add 30 to it:
How to Convert Fahrenheit to Celsius Quickly
To do a rough approximation of Celsius using Fahrenheit, reverse the earlier formula. Subtract 30 from the Fahrenheit degrees, then divide your answer by 2.
How to Convert Celsius to Fahrenheit (Exact Calculation)
If you're looking to get a more precise calculation, you can use this exact formula. You may want to have a calculator handy when you do this.
How to Convert Fahrenheit to Celsius (Exact Calculation)
When converting Fahrenheit to Celsius, you simply reverse the same equation above. Subtract 32 from the degrees in Fahrenheit, then divide your answer by 1.8.
When was the Fahrenheit scale invented?
Literature indicates that the Fahrenheit scale was invented in 1724 and the Celsius (Centigrade) scale invented in 1742. From these dates, it's probable that Anders Celsius invented this conversion formula.
Who created the temperature scale?
The temperature scales used in this formula were created by Anders Celsius (1701–1744) and Daniel Gabriel Fahrenheit (1686–1736). I am unsure if it was Anders Celsius or Daniel Gabriel Fahrenheit who created this conversion formula.
Celsius To Fahrenheit Conversion Calculator
Use this calculator to quickly convert a temperature from Celsius (°C) to degrees Fahrenheit (°F).
Celsius To Fahrenheit Formula
The calculator above uses the following formula to convert Celsius to Fahrenheit:
How To Convert Celsius To Fahrenheit (°C to °F)
This worked example shows how to convert a temperature in Celsius to Fahrenheit using the formula: Fahrenheit (°F) = (Celsius x 1.8) + 32
Celsius To Fahrenheit Conversion Table
This table shows a select range of temperatures, converted from Celsius to Fahrenheit (C to F) - from absolute zero to the boiling point of water.
Where is Fahrenheit used?
In addition to the United States and its territories, Fahrenheit is still used in the Bahamas, Belize, and the Cayman Islands for most temperature measurements. Helmenstine, Anne Marie, Ph.D. "How to Convert Fahrenheit to Celsius.". ThoughtCo, Aug. 27, 2020, thoughtco.com/fahrenheit-to-celsius-formula-609230.
What is the temperature scale used for?
Fahrenheit and Celsius are the scales most often used for reporting room, weather, and water temperatures. The Fahrenheit scale is used in the United States, while the Celsius scale is used worldwide. Indeed, most countries around the world measure their weather and temperatures using the relatively simple Celsius scale.
What is the boiling point of water?
His scale divides the freezing and boiling points of water into 180 degrees, with 32 degrees as water's freezing point, and 212 as its boiling point. On Fahrenheit's scale, zero degrees was determined as the temperature of a temperature-stable brine solution of ice, water, and ammonium chloride.
Do you need an exact conversion for Celsius?
You often don't need an exact conversion. If you're traveling to Europe, for example, and you know the temperature is 74 F, you might want to know the approximate temperature in Celsius. The website Lifehacker offers this tip on making an approximate conversion:
Is Celsius lower than Fahrenheit?
Check your answer to ensure it makes sense. At ordinary temperatures, a Celsius value is always lower than the corresponding Fahrenheit value. Also, it's helpful to keep in mind that the Celsius scale is based on the freezing and boiling points of water, where 0 C is the freezing point and 100 C is the boiling point.