In C++, both float and double are the different data types used to save numbers with commas. Let’s explore the differences between float and double.
What is Float?
In the programming world, a float is a data type and 32 bits variable that permits you to store real numbers with fractional components and with commas.
What is Double?
Double is also a data type and 64 bit variable used to store large or real numbers that have fractional values.
Difference between float and double in C/C++
| S.No. | FLOAT | DOUBLE |
| 1 | Single Precision data-type. | Double precision data type. |
| 2 | Float data types can store up to 7 digits. | Double data type can store up to 15 digits |
| 3 | The format specifier for float is %f. | The format specifier for double is %lf. |
| 4 | It is a 32-bit floating-point data type. | It is a 64-bit floating-point data type. |
| 6 | It demands 4-bytes of memory space. | It demands 8-bytes of memory space. |
| 7 | It has 6-digits of precision. | It has 15-digits of precision. |
| 8 | It is affordable and consumes less memory space. | It is costlier, consumes more memory space. |
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