How much space does a Boolean take?
Noah Mitchell
Published Apr 09, 2026
A bool takes in real 1 bit, as you need only 2 different values. However, when you do a sizeof(bool), it returns 1, meaning 1 byte. For practical reasons, the 7 bits remaining are stuffed. you can't store a variable of size less than 1 byte.
Then, how much space does a Boolean take up?
A bool takes in real 1 bit, as you need only 2 different values. However, when you do a sizeof(bool), it returns 1, meaning 1 byte. For practical reasons, the 7 bits remaining are stuffed. you can't store a variable of size less than 1 byte.
Likewise, why is a Boolean 1 byte? Because a byte is the smallest addressible unit in the language. bool can be one byte -- the smallest addressable size of CPU, or can be bigger. It's not unusual to have bool to be the size of int for performance purposes.
Similarly one may ask, what is the size of Boolean?
Primitive Data Types
| Data Type | Size |
|---|---|
| long | 8 bytes |
| float | 4 bytes |
| double | 8 bytes |
| boolean | 1 bit |
How many bytes is a Boolean C++?
one byte
Related Question Answers
How is a boolean stored?
Boolean values are not actually stored in Boolean variables as the words “true” or “false”. Instead, they are stored as integers: true becomes the integer 1, and false becomes the integer 0. Similarly, when Boolean values are evaluated, they don't actually evaluate to “true” or “false”.Does C++ have Booleans?
For this, C++ has a bool data type, which can take the values true (1) or false (0).Is a Boolean 1 bit?
A boolean is a true-or-false quantity, but a bit is actually an integer, just like char or int, but only one bit wide. When converting to these types, you can get different results. In the boolean world, 0 is false and anything else is true.How are bytes stored in memory?
Binary representationNumbers are stored on the computer in binary form. In other words, information is encoded as a sequence of 1's and 0's. On most computers, the memory is organized into 8-bit bytes. This means each 8-bit byte stored in memory will have a separate address.
How many bytes is an int?
4 bytesHow many bits are in a Boolean?
1 bitWhich data type is used to represent the absence of parameters?
voidWhat are the 5 data types?
Common data types include:- Integer.
- Floating-point number.
- Character.
- String.
- Boolean.
Is Boolean a primitive data type?
The simplest data type available to you in Java is the primitive type boolean. A boolean variable has only two possible values, true or false, which are represented with reserved words.What is long in Java?
Long is a data type used in programming languages, such as Java, C++, and C#. A constant or variable defined as long can store a single 64-bit signed integer. Therefore, if a variable or constant may potentially store a number larger than 2,147,483,647 (231 ÷ 2), it should be defined as a long instead of an int.What is sizeof in Java?
Here is our complete Java program to implement the sizeof operator. It's not exactly size but its purpose is same. sizeof returns how much memory a particular data type take and this method does exactly that.Which primitive type can hold the largest value?
The biggest integer type is the ulong type. It is a 64-bit unsigned type, which has as a default value the number 0u, or 0U (the two are equivalent).How many bytes is a string?
Eight bits of memory storage are allocated to store each character in the string (a total of 22 bytes), with the value in each byte as yet undetermined.Is node a data type in Java?
Below is an example of a linked list node with integer data. In Java or C#, LinkedList can be represented as a class and a Node as a separate class. The LinkedList class contains a reference of Node class type.What is non primitive data type?
Non-Primitive Data Types: These data types are not actually defined by the programming language but are created by the programmer. They are also called “reference variables” or “object references” since they reference a memory location which stores the data.What is double data type?
double: The double data type is a double-precision 64-bit IEEE 754 floating point. This data type represents one bit of information, but its "size" isn't something that's precisely defined. char: The char data type is a single 16-bit Unicode character.What is an example of a Boolean?
Boolean expressions use the operators AND, OR, XOR, and NOT to compare values and return a true or false result. These boolean operators are described in the following four examples: x AND y - returns True if both x and y are true; returns False if either x or y are false.What is a Boolean field type?
In computer science, the Boolean data type is a data type that has one of two possible values (usually denoted true and false) which is intended to represent the two truth values of logic and Boolean algebra. It is named after George Boole, who first defined an algebraic system of logic in the mid 19th century.What is size of Boolean variable in C++?
Sizes of built-in types| Type | Size |
|---|---|
| bool , char , char8_t , unsigned char , signed char , __int8 | 1 byte |
| char16_t , __int16 , short , unsigned short , wchar_t , __wchar_t | 2 bytes |
| char32_t , float , __int32 , int , unsigned int , long , unsigned long | 4 bytes |
| double , __int64 , long double , long long , unsigned long long | 8 bytes |
