Celsius to Fahrenheit Conversion: Quick and Easy Tips
Written by  Daisie Team
Published on 5 min read


  1. The Celsius and Fahrenheit Scales
  2. How to Convert Celsius to Fahrenheit
  3. Quick Tip for Conversion
  4. Why Conversion Matters
  5. Practice Problems for Conversion

Temperature conversion might sound like a tricky job, but with some quick and easy tips, it's a breeze. Whether you're trying to decode a weather report or just curious about science, understanding how to convert Celsius to Fahrenheit is a handy skill. Let's dive into the world of temperature conversion: Celsius to Fahrenheit.

The Celsius and Fahrenheit Scales

Before we get into the nitty-gritty of temperature conversion, it's a good idea to understand the scales we're dealing with. Let's start with Celsius and Fahrenheit—two of the most commonly used temperature scales around the world.

The Celsius Scale

The Celsius scale, also known as the centigrade scale, is based on two fixed points: the freezing point of water—0 degrees Celsius, and the boiling point—100 degrees Celsius. The simplicity of this scale makes it a popular choice in most countries outside the United States.

The Fahrenheit Scale

Over on the other side of the pond, however, you'll find the Fahrenheit scale in use. This scale was developed with the freezing point of brine (a mixture of salt and water) as 0 degrees, and the normal human body temperature as roughly 100 degrees. This is why, when you look at a U.S. weather forecast, you might see temperatures like 32 degrees (the freezing point of water in Fahrenheit) or 98.6 degrees (the average human body temperature).

So, now that you've gotten a taste of these two scales, you might be wondering—how do you switch between the two? How do you perform a temperature conversion: Celsius to Fahrenheit, or vice versa? Read on, friend, for that's exactly what we're going to explore next.

How to Convert Celsius to Fahrenheit

So, you've got a temperature in Celsius and need to convert it to Fahrenheit. No problem, it's a straightforward process. Just follow these steps and you'll have your temperature conversion: Celsius to Fahrenheit in no time.

Step 1: Multiply by 9

First things first, take your Celsius temperature and multiply it by 9. For example, if you've got a temperature of 20 degrees Celsius, you would get 180.

Step 2: Divide by 5

Next, take the result from step one and divide it by 5. Using our previous example, you would divide 180 by 5 to get 36.

Step 3: Add 32

The final step is to add 32 to the result from step two. So, in our example, 36 plus 32 equals 68. Voila! You've just converted 20 degrees Celsius to Fahrenheit.

This might seem like a bit of a roundabout way to convert temperatures, but it's based on the differences in the scales' starting points and increments. It's a tried-and-true method for temperature conversion: Celsius to Fahrenheit. Keep this formula in mind, and you'll never be left in the cold—or the heat—again!

Quick Tip for Conversion

So, you've got the official method down for converting Celsius to Fahrenheit. But let's say you're in a hurry or you don't have a calculator handy. Well, there's a nifty trick for temperature conversion: Celsius to Fahrenheit that can make your life a lot easier.

The Quick Ratio: Double and Add 30

This quick tip is easy to remember: double the Celsius temperature and add 30. For example, if it's 20 degrees Celsius, double it to get 40, and add 30 to get 70. It's not perfect—the actual Fahrenheit temperature would be 68—but it's pretty close and a lot faster!

Why Does This Work?

Well, the "double and add 30" rule is just an approximation of the actual formula. It's not exact because it's essentially rounding the multiplying by 9/5 in the official method to a simpler multiplying by 2. But for everyday use—like figuring out what to wear for the weather—it's a really handy tool for temperature conversion: Celsius to Fahrenheit.

When Should You Use This Method?

Remember, this is a quick and dirty method. It works best for temperatures that most people encounter on a daily basis, roughly between -10 degrees Celsius and 40 degrees Celsius. Beyond this range, the approximation starts to lose its accuracy. But for a quick conversion, it's a great tool to have in your temperature arsenal!

Why Conversion Matters

Understanding how to convert temperatures from Celsius to Fahrenheit isn't just something for scientists or trivia buffs—it's a practical skill for all of us.

Travel and Weather

Picture this: you're planning a trip abroad, and the forecast says the temperature will average around 15 degrees. Sounds chilly, right? But wait—that's 15 degrees Celsius, which is actually a comfortable 59 degrees Fahrenheit! Knowing how to convert temperatures can help you pack appropriately and plan your activities.

Cooking and Baking

Ever try a recipe from another country and get stumped by the oven temperature? Many recipes outside the U.S. use Celsius, not Fahrenheit. A quick temperature conversion can keep your cookies from burning and your roast from undercooking.

Education and General Knowledge

Temperature conversion—Celsius to Fahrenheit—is also a great way to engage with the world scientifically. It can be a fun exercise for kids learning about the weather or a useful skill for adults wanting to understand more about physics and mathematics.

Health and Safety

And let's not forget about body temperature. Knowing the difference between 37 degrees Celsius (a normal body temperature) and 40 degrees Celsius (a high fever) could be important for your health.

So you see, being able to convert temperatures isn't just a cool party trick—it's a practical skill that can come in handy in many areas of life.

Practice Problems for Conversion

Now that you know why the ability to convert temperatures from Celsius to Fahrenheit is important, let's put that knowledge into action with some practice problems.

Problem 1

Let's start with an easy one. If the temperature is 0 degrees Celsius, what is it in Fahrenheit? Remember, the formula is (0°C × 9/5) + 32 = ?°F.

Problem 2

Alright, now let's flip it. If the weather forecast in New York says it's 77 degrees Fahrenheit, what would that be in Celsius? The formula to use is (77°F - 32) × 5/9 = ?°C.

Problem 3

Here's a tricky one. You're baking a cake and the recipe, which comes from England, says to preheat your oven to 180 degrees Celsius. How hot should you set your oven in Fahrenheit?

Problem 4

Final challenge: your friend from Canada tells you it's a chilly -10 degrees Celsius. Just how cold is it in Fahrenheit?

Practicing with these problems will help you get the hang of temperature conversion: Celsius to Fahrenheit. Do the math, check your answers, and before you know it, you'll be a pro at this! Remember, practice makes perfect.

While the Celsius to Fahrenheit conversion may not be directly related to illustration, having a strong foundation in various skills can contribute to your success as an artist. If you're interested in exploring new techniques in illustration, check out the workshop 'An Analog & Digital Mix: Customising Your Tools As An Illustrator' by Florencia Fuertes. This workshop will provide you with valuable insights on how to combine traditional and digital tools to create unique and eye-catching illustrations.

If you're looking for more general inspiration and knowledge, be sure to explore Daisie's classes. You'll find a wide range of workshops and courses designed to help you grow as an artist and discover new creative avenues.