What Is Room Temperature in Celsius

What Is Room Temperature in Celsius?

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Students are taught a great deal about room temperature when they are old enough to understand the basic principles and facts of science.

Perhaps one of the most asked questions in science classes is “What is room temperature in Celsius?” Even though this is a fairly easy question, it’s only natural if you’ve forgotten the answer to it.

In this article, we’ll talk about the answer. We’ll also shed light on related matters so that the concept is clearer to you.

Standard Room Temperature

You’ll be surprised to know how many people hold a wrong conception about standard room temperature. Standard room temperature is a term that’s used to define the temperature that will feel comfortable to an individual.

While this may not be universal, it is supposed to apply to the majority of the population. However, we still find that standard room temperature is extremely variable.

Standard Room Temperature

The same person might not find 20-degree Celsius to be comfortable at two different locations. This is because the comfort we are talking about depends not only on temperature but also on certain other factors.

There are two types of factors that you must consider in this case. The first is personal factors like clothing insulation and metabolic heat. Then again, there are environmental factors like air velocity, radiant heat, and more. Let’s talk about these.

Air Velocity

The speed of air is a major factor that can change the way you feel in any environment. If you’re in an environment that’s relatively cooler, but lacks airflow, then you’ll feel discomfort.

Then again, if you’re in very warm weather but there’s a decent level of airflow around you, you’ll find comfort to a certain degree.

Radiant Temperature

Radiant temperature is another thing that can control how you feel in an environment. Warm objects radiate heat, and this heat can change the temperature around them.

Radiant Temperature

For example, even if the temperature of the environment is 20-degree as a whole, the temperature around a fire or a kitchen will be higher. Let’s consider something less evident.

Imagine yourself sitting on a grassy field under direct sunlight in 20-degree Celsius, versus sitting on a block of steel in the same environment. I promise you that the latter won’t be very comfortable.


Remember those days when it wasn’t that hot, but you felt uncomfortable and suffocated anyways? This is because of humidity. A high relative humidity is one of the things that can cause discomfort to a great level.

The relative humidity is the ratio of the water vapor in the air to the maximum amount of vapor that a specific environment can hold at a time. If it rises beyond 70%, then it will affect the temperature. In an environment that’s already warm, a higher percentage of humidity can make it hotter.

Also, high relative humidity will prevent you from sweating, which will increase your internal temperature by a great deal.

Metabolic Heat

The more you work, the more you heat up. This is why you’ll find an idle person to be way cooler than one who’s working. While this is very evident, one may overlook this easily while working with theories.


What you’re wearing changes your perception of the environment in more than one way. One of the major reasons why clothes were invented in the first place is thermal insulation. This is why it’s a major factor.

By far, you’ve learned about standard room temperature with a scientific approach. However, I believe that you won’t be measuring every aspect that we’ve talked about till now while you decide whether the room temperature is comfortable or not.

For the simplest non-scientific method, you can declare a certain temperature as standard room temperature if you can sit 15 minutes comfortably in it.

Room Temperature in Celsius

There are many different scales on which temperature is measured. This is why we can’t declare a specific unit as the universal room temperature. However, no matter which scale you consider, there’s always room temperature.

As you’ve asked specifically about Celsius, we’ll talk about that only. In the Celsius scale, the standard room temperature is defined as 20-22 degrees. This specific range is identified by The American Heritage Dictionary of the English language.

Room Temperature in Celsius

Conventionally, 20-degree Celsius is taken as the standard room temperature. Even though the comfortable temperature can vary from place to place, a range has been set according to seasons as well.

In summer, the comfort range usually ranges from 23 to 25.5 degrees Celsius. On the other hand, this range is 20-23.5 degrees Celsius in winter.

Another interesting fact is that comfortable temperature can vary depending on your gender as well. Studies found that women prefer comparatively higher ambient temperature than men.

 How Should You Feel in Standard Room Temperature?

This is quite interesting, but you’ll have to revisit some simple biology lessons to understand it. Most living beings have a warm core in their body. As our bodies perform different functions, they grow warmer.

However, the warmth created in our bodies isn’t retained in its entirety. We lose the warmth up to a certain level. Now, when we release the heat, the nerves on our skin can determine whether the temperature of the environment is hotter or cooler than our body’s core.

This is how we understand whether the environment is warm or cool. However, what happens if the temperature of the environment is just the same as the heat released by our body?

In such cases, our nerves find no difference, and we feel neither hot nor cold. This is where our body feels the most comfortable, and thus we call it standard room temperature.

There is a question about how to measure room temperature accurately – The standard way to measure room temperature to use an indoor thermometer.

 Final Words

Now that you know many things about standard room temperature, hopefully, you’ll be able to tell what is room temperature in Celsius when someone asks you about it.

Plus, you can also determine whether the temperature of your room is comfortable for you or not, so that you can change that using different cooling methods.


1. www.sciencedirect.com/topics/engineering/metabolic-heat

2. www.designingbuildings.co.uk/wiki/Mean_radiant_temperature

3. www.vivint.com/resources/article/best-home-room-temperature

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